Biggest changeOther Expenses Our other expenses primarily consist of fair value adjustments of contingent consideration, accreted interest expense related to the acquisition installment payables and borrowing costs and expenses related to long-term debt. 75 Results of Operations Comparison of the Years Ended December 31, 2022 and 2021 The following table sets forth our results of operations for the years ended December 31, 2022 and 2021: (in thousands, except percentages) 2022 2021 Increase (Decrease) % Increase (Decrease) Net revenue $ 122,289 $ 98,049 $ 24,240 25 % Cost of revenue 31,629 24,646 6,983 28 % Sales and marketing expenses 45,053 39,673 5,380 14 % General and administrative expenses 59,383 46,061 13,322 29 % Trademark impairment 3,609 — 3,609 100 % Legal settlement expenses — 150 (150) (100) % Research and development expenses 8,014 5,543 2,471 45 % Other expenses (income) (21,710) (636) (21,074) 3314 % Provision for income taxes (benefit) (4,947) (1,128) (3,819) 339 % Net income (loss) $ 1,258 $ (16,260) $ 17,518 (108) % Revenue The following tables set forth our revenue by geography and product category for the years ended December 31, 2022 and 2021: Revenue by Geography Year Ended December 31, (in thousands, except percentages) 2022 % of revenue 2021 % of revenue U.S. $ 92,419 76% $ 77,781 79% International 29,870 24% 20,268 21% Total $ 122,289 100% $ 98,049 100% Revenue by Product Category Year Ended December 31, (in thousands, except percentages) 2022 % of revenue 2021 % of revenue Trauma and deformity $ 85,055 70% $ 65,829 67% Scoliosis 33,428 27% 28,046 29% Sports medicine/other 3,806 3% 4,174 4% Total $ 122,289 100% $ 98,049 100% Net revenue increased $24.2 million, or 25%, from $98.0 million for the year ended December 31, 2021 to $122.3 million for the year ended December 31, 2022.
Biggest changeOther Income (Expense) Our other income (expense) primarily consists of fair value adjustments of contingent consideration, accreted interest expense related to the acquisition installment payables, borrowing costs and expenses related to debt. 75 Results of Operations Comparison of the Years Ended December 31, 2023 and 2022 The following table sets forth our results of operations for the years ended December 31, 2023 and 2022: (in thousands, except percentages) 2023 2022 Increase (Decrease) % Increase (Decrease) Net revenue $ 148,732 $ 122,289 $ 26,443 22 % Cost of revenue 37,479 31,629 5,850 18 % Sales and marketing expenses 51,402 45,053 6,349 14 % General and administrative expenses 75,421 59,383 16,038 27 % Trademark impairment 985 3,609 (2,624) (73) % Research and development expenses 10,196 8,014 2,182 27 % Other income (5,439) (21,710) 16,271 (75) % Provision for income taxes (benefit) (338) (4,947) 4,609 (93) % Net (loss) income $ (20,974) $ 1,258 $ (22,232) (1,767) % Revenue The following tables set forth our revenue by geography and product category for the years ended December 31, 2023 and 2022: Revenue by Geography Year Ended December 31, (in thousands, except percentages) 2023 % of revenue 2022 % of revenue U.S. $ 111,010 75% $ 92,419 76% International 37,722 25% 29,870 24% Total $ 148,732 100% $ 122,289 100% Revenue by Product Category Year Ended December 31, (in thousands, except percentages) 2023 % of revenue 2022 % of revenue Trauma and deformity $ 106,781 72% $ 85,055 70% Scoliosis 37,933 25% 33,428 27% Sports medicine/other 4,018 3% 3,806 3% Total $ 148,732 100% $ 122,289 100% Net revenue increased $26.4 million, or 22%, from $122.3 million for the year ended December 31, 2022 to $148.7 million for the year ended December 31, 2023.
Additionally, based on our history of immaterial returns from international customers, we have historically estimated no reserve for returns. Inventory Valuation Inventory is stated at the lower of cost or net realizable value, with cost determined using the first-in-first-out method.
Additionally, based on our history of immaterial returns from international customers, we have historically estimated no reserve for returns. 80 Inventory Valuation Inventory is stated at the lower of cost or net realizable value, with cost determined using the first-in-first-out method.
Debt and Credit Arrangements in Item 8 for further detail regarding our debt and the timing of expected future principal and interest payments. • Acquisition installment payables, net of current portion and contingent consideration - See Note 3.
Debt and Credit Arrangements in Item 8 for further detail regarding our debt and the timing of expected future principal and interest payments. 79 • Acquisition installment payables, net of current portion and contingent consideration - See Note 3.
It is also possible that we may allocate significant amounts of capital toward products or technologies for which market demand is lower than anticipated and, as a result, abandon such efforts.
It is also possible 77 that we may allocate significant amounts of capital toward products or technologies for which market demand is lower than anticipated and, as a result, abandon such efforts.
In 2017, we began to supplement our international stocking distributors with sales agencies using direct sales programs in the United Kingdom, Ireland, Australia and New Zealand where we sell directly to the hospitals.
In 2017, we 72 began to supplement our international stocking distributors with sales agencies using direct sales programs in the United Kingdom, Ireland, Australia and New Zealand where we sell directly to the hospitals.
The calculation of the fair value 81 of the trademark assets involves Level 3 fair value measurements. To estimate the fair value of the trademark asset and associated impairment, we utilized an income approach, or discounted cash flow model.
The calculation of the fair value of the trademark assets involves Level 3 fair value measurements. To estimate the fair value of the trademark asset and associated impairment, we utilized an income approach, or discounted cash flow model.
In 2022, there was a significant and unprecedented increase in cases of respiratory syncytial virus, or RSV, and other respiratory illnesses. RSV is a common respiratory virus that follows a seasonal pattern.
In 2023 and 2022, there was a significant and unprecedented increase in cases of respiratory syncytial virus, or RSV, and other respiratory illnesses. RSV is a common respiratory virus that follows a seasonal pattern.
Net cash used in investing activities in 2022 was primarily related to the cash portions paid in the acquisitions of MDO and Pega in the aggregate amount of $40.1 million and purchases of short term investments of $110.1 million, both of which were offset by sales of short term securities of $46.9 million.
Net cash used in 2022 was primarily related to the cash portions paid in the acquisitions of MDO and Pega in the aggregate amount of $40.1 million and purchases of short term investments of $110.1 million, both of which were offset by sales of short term securities of $46.9 million.
Business Combinations in Item 8 for further detail regarding our obligations and timing of expected future payments. • Minimum purchase obligations - Purchase obligations include agreements for purchases of product in the normal course of business, including minimum quantities required pursuant to our license agreements. See Note 15.
Business Combinations and Asset Acquisitions in Item 8 for further detail regarding our obligations and timing of expected future payments. • Minimum purchase obligations - Purchase obligations include agreements for purchases of product in the normal course of business, including minimum quantities required pursuant to our license agreements. See Note 15.
As a result of these transactions, we may record certain intangible assets, including goodwill and trademarks, which are subject to annual impairment testing. Fair value is based on our current assessment of the expected future cash flows based on recent results and other specific market factors.
As a result of these transactions, we may record certain intangible assets, including goodwill and trademarks, which are subject to annual impairment testing. Fair value is based on our current assessment of the expected future cash flows based on recent results and other specific market fact ors.
During 2022, we determined that a triggering event had occurred indicating it was more likely than not the fair value of the ApiFix trademark was less than the associated carrying value.
During 2023 and 2022, we determined that a triggering event had occurred indicating it was more likely than not the fair value of the ApiFix trademark was less than the associated carrying value.
The deferred tax assets, except for those recorded in Canada and Israel, were fully offset by a valuation allowance as of December 31, 2022 and 2021 and no income tax benefit has been recognized in continuing operations related to the NOLs which have valuation allowances.
The deferred tax assets, except for those recorded in Canada and Israel, were fully offset by a 81 valuation allowance as of December 31, 2023 and 2022 and no income tax benefit has been recognized in continuing operations related to the NOLs which have valuation allowances.
We believe our existing cash and cash equivalents, amounts available under the Loan Agreement, cash receipts from sales of our products and net proceeds from our August 2022 public securities offering will be sufficient to meet our anticipated cash requirements for at least the next 12 months.
We believe our existing cash and cash equivalents, amounts available under our new Credit Agreement, cash receipts from sales of our products and net proceeds from our August 2022 public securities offering will be sufficient to meet our anticipated cash requirements for at least the next 12 months.
Nonetheless, from time to time, we may seek additional financing sources to meet our working capital requirements, make continued research and development investments and make capital expenditures needed for us to maintain and grow our business. We may not be able to obtain additional financing on terms favorable to us, if at all.
Nonetheless, from time to time, we may seek additional financing sources to me et our working capital requirements, make continued research and development investments and make capital expenditures needed for us to maintain and grow our business. We may not be able to obtain additional financing on terms favorable to us, if at all.
We market and sell our products internationally in over 70 countries through independent stocking distributors and sales agencies. Our independent stocking distributors manage the billing relationship with each hospital in their respective territories and are responsible for servicing the product needs of their surgeon customers.
We market and sell our products internationally in over 70 coun tries through independent stocking distributors and sales agencies. Our independent stocking distributors manage the billing relationship with each hospital in their respective territories and are responsible for servicing the product needs of their surgeon customers.
During 2022, management determined that a triggering event occurred, indicating that it was more likely than not the fair value of the ApiFix trademark asset was less than the carrying value. As such, the company completed a quantitative analysis whereby we determined the fair value of the ApiFix trademark asset associated was below the carrying value.
During 2023 and 2022, management determined that a triggering event occurred, indicating that it was more likely than not the fair value of the ApiFix trademark asset was less than the carrying value. As such, the company completed a quantitative analysis whereby we determined the fair value of the ApiFix trademark asset was below the carrying value.
Sales and Marketing Expenses Our sales and marketing expenses primarily consist of commissions to our domestic and international independent sales agencies, as well as compensation, commissions, benefits and other related personnel costs. Commissions and bonuses are generally based on a percentage of sales.
Sales and Marketing Expenses Our sales and marketing expenses primarily consist of commissions to our domestic and international independent sales agencies, as well as compensation, commissions, benefits and other related personnel costs to our global sales management team. Commissions and bonuses are generally based on a percentage of sales.
We include insurance expenses in general and administrative expenses, as well as costs related to the maintenance and protection of our intellectual property portfolio. Our general and administrative expenses also include the depreciation of our capitalized instrument sets, which represented $6.2 million, $5.6 million and $3.8 million for the years ended December 31, 2022, 2021 and 2020, respectively.
We include insurance expenses in general and administrative expenses, as well as costs related to the maintenance and protection of our intellectual property portfolio. Our general and administrative expenses also include the depreciation of our capitalized instrument sets, which represented $7.9 million, $6.2 million and $5.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.
Since inception we have impacted the lives of over 630,000 children, when including those served by our acquired companies. We believe we should continue to expand our social efforts while minimizing our impact to the environment and ensuring corporate governance.
Since inception we have impacted the lives of ove r 710,000 children, when including those served by our acquired companies. We believe we should continue to expand our social efforts while minimizing our impact to the environment and ensuring corporate governance.
We currently market 46 surgical and specialized bracing systems that serve three of the largest categories within the pediatric orthopedic market: (i) trauma and deformity correction, (ii) scoliosis and (iii) sports medicine. We rely on a broad network of third parties to manufacture the components of our products, which we then inspect and package.
We currently mar ket 53 su rgical and specialized bracing systems that serve three of the largest categories within the pediatric orthopedic market: (i) trauma and deformity correction, (ii) scoliosis and (iii) sports medicine. We rely on a broad network of third parties to manufacture the components of our products, which we then inspect and package.
We estimate that the portion of this market that we currently serve represents a $3.9 billion opportunity globally, including over $1.7 billion in the United States. We sell implants, instruments and specialized braces to our customers for use by pediatric orthopedic surgeons, orthotists or physical therapists to treat orthopedic conditions in children.
We estimate that the portion of this market that we currently serve represents a $3.9 b illion opportunity globally, including ov er $1.7 bi llion in the United States. We sell implants, instruments and specialized braces to our customers for use by pediatric orthopedic surgeons, orthotists or physical therapists to treat orthopedic conditions in children.
Nearly all the change in each category was due to a change in the unit volume sold and not a result of price changes. 76 Cost of Revenue and Gross Margin Cost of revenue was $31.6 million and $24.6 million for the years ended December 31, 2022 and 2021, respectively.
Nearly all the change in each category was due to a change in the unit volume sold and not a result of price changes. Cost of Revenue and Gross Margin Cost of revenue was $37.5 million and $31.6 million for the years ended December 31, 2023 and 2022, respectively.
In 2020 we were named as "Corporate Partner of the Year" by the World Pediatric Project - with whom we work to provide access to medical care for children in developing countries. • We are committed to fostering an environment that is respectful, compassionate, and inclusive of everyone in our community. • The Company and its Board of Directors understand the value of diversity.
In 2020, we were named as "Corporate Partner of the Year" by the World Pediatric Project - with whom we work to provide access to medical care for children in developing countries. • We are committed to fostering an environment that is respectful, compassionate, and inclusive of everyone in our community which is communicated in our diversity and inclusion policy.
During 2022, the primary uses of cash included an increase in inventory of $16.9 million as we deployed additional inventory, and an increase in accounts receivable of $3.9 million. These uses of cash were partially offset by cash inflows from other accrued expenses of $3.3 million, related primarily to accrued compensation.
During 2023, the primary uses of cash included an increase in inventory of $26.3 million as we deployed additional inventory and an increase in accounts receivable of $9.7 million. These uses of cash were partially offset by cash inflows from other accrued expenses of $6.9 million, related primarily to accrued compensation, and an increase in accounts payable of $1.5 million.
The acquisition installment payable is related to the acquisition of ApiFix - See Note 3. Business Combinations in Item 8 for further detail of the acquisition and the acquisition installment payables. Our long-term cash requirements under various contractual obligations and commitments include: • Debt obligations and interest payments - See Note 8.
Business Combinations and Asset Acquisitions in Item 8 for further detail of the acquisition and the acquisition installment payables. Our long-term cash requirements under various contractual obligations and commitments include: • Debt obligations and interest payments - See Note 8.
Actual results may differ materially from these estimates under different assumptions or conditions. 80 While our significant accounting policies are more fully described in the notes to our consolidated financial statements appearing elsewhere in this annual report, we believe the following accounting policies are most critical to understanding and evaluating our reported financial results and require significant or complex judgment and estimates on the part of management.
While our significant accounting policies are more fully described in the notes to our consolidated financial statements appearing elsewhere in this annual report, we believe the following accounting policies are most critical to understanding and evaluating our reported financial results and require significant or complex judgment and estimates on the part of management.
See note 15 - Commitments and Contingencies in Item 8 for additional details of our purchase commitments and performance obligations. Sales and Marketing Expenses Sales and marketing expenses increased $5.4 million, or 13.6%, from $39.7 million for the year ended December 31, 2021 to $45.1 million for the year ended December 31, 2022.
See Note 15 - Commitments and Contingencies in Item 8 for additional details of our purchase commitments and performance obligations. 76 Sales and Marketing Expenses Sales and marketing expenses increased $6.3 million, or 14%, from $45.1 million for the year ended December 31, 2022 to $51.4 million for the year ended December 31, 2023.
We also invested an additional $10.0 million in property, plant and equipment, primarily instrument sets which were consigned in the United States and select international markets.
We also invested $16.9 million in property, plant and equipment, primarily instrument sets which were consigned in the United States and select international markets.
The lower rate was driven by MD Ortho e-Commerce sales, which is sold without sales commissions, and lower commissions on other newly acquired products. General and Administrative Expenses General and administrative expenses increased $13.3 million, or 29%, from $46.1 million for the year ended December 31, 2021 to $59.4 million for the year ended December 31, 2022.
The lower rate was driven by MD Ortho e-Commerce sales, which is sold without sales commissions, and lower commissions on other newly acquired products. General and Administrative Expenses General and administrative expenses increased $16.0 million, or 27%, from $59.4 million for the year ended December 31, 2022 to $75.4 million for the year ended December 31, 2023.
The increase was due primarily to increased sales commission expenses and an overall increase in volume of units sold. Sales and marketing expenses also increased by approximately $1.5 million as a result of the acquisitions. Sales and marketing expenses for the year ended December 31, 2022 were approximately 37% of revenue compared to 40% for 2021.
The increase was due primarily to increased sales commission expenses and an overall increase in volume of u nits sold. Sales and marketing expenses also increased by approximately $0.7 million as a result of the acquisitions. Sales and marketing expenses for the year ended December 31, 2023 were approximately 35% of revenue compared to 37% for 2022 .
Research and Development Expenses Research and development expenses increased $2.5 million, or 45%, from $5.5 million for the year ended December 31, 2021 to $8.0 million for the year ended December 31, 2022.
Research and Development Expenses Research and development expenses increased $2.2 million, or 27%, from $8.0 million for the year ended December 31, 2022 to $10.2 million for the year ended December 31, 2023.
Liquidity and Capital Resources We have incurred operating losses since inception, excluding the fiscal year ended December 31, 2022, and negative cash flows from operating activities of $21.8 million, $13.1 million and $18.5 million for the years ended December 31, 2022, 2021 and 2020, respectively. As of December 31, 2022, we had an accumulated deficit of $176.8 million.
Liquidity and Capital Resources We have incurred operating losses since inception and negative cash flows from operating activities of $27.0 million, $21.8 million and $13.1 million for the years ended December 31, 2023, 2022 and 2021, respectively. As of December 31, 2023, we had an accumulated deficit of $197.7 million.
Cash Used in Investing Activities Net cash used in investing activities was $113.4 million, $7.4 million and $69.7 million for the years ended December 31, 2022, 2021 and 2020, respectively.
Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities was $41.7 million and $(113.4) million for the years ended December 31, 2023 and 2022, respectively.
Since inception, we have funded our operations primarily with proceeds from the sales of our 77 common and preferred stock, convertible securities and debt, as well as through sales of our products. As of December 31, 2022, we had cash, cash equivalents and restricted cash of $10.5 million and short-term investments of $109.3 million.
Since inception, we have funded our operations primarily with proceeds from the sales of our common and preferred stock, convertible securities and debt, as well as through sales of our products. As of December 31, 2023, we had cash, cash equivalents and restricted cash of $33.0 million and short-term investments of $49.3 million for a total of $82.3 million.
Legal Settlement Expenses The Company is involved in various legal proceedings from time-to-time. Liabilities for estimated losses are accrued if the potential loss from any claim or legal proceeding is considered probable and the amount can be reasonably estimated.
Legal Settlement Expenses The Company is involved in various legal proceedings from time-to-time. Liabilities for estimated losses are accrued if the potential loss from any claim or legal proceeding is considered probable and the amount can be reasonably estimated. No accrual or adjustments were made during the years ended December 31, 2023 or 2022.
Total Other Income Total other income increased $21.1 million from $0.6 million for the year ended December 31, 2021 to $21.7 million for the year ended December 31, 2022. The change is driven primarily by the decrease in fair value of the contingent consideration related to the ApiFix acquisition.
Total Other Income Total other income decreased $16.3 million from $21.7 million for the year ended December 31, 2022 to $5.4 million for the year ended December 31, 2023. The change is driven primarily by the decrease in fair value of the contingent consideration related to the ApiFix acquisition in 2022.
The primary reason for the impairment is the lower forecasted revenue of our ApiFix product than previously expected. We recorded a $3,609 impairment charge for the year ended December 31, 2022 to reduce the carrying amount of the intangible asset to its estimated fair value.
The primary reason for the impairment is the lower forecasted revenue of our ApiFix product than previously expected. We recorded impairment charges of $1.0 million and $3.6 million for the years ended December 31, 2023 and 2022, respectively, to reduce the carrying amount of the intangible asset to its estimated fair value.
Subsequently, the company completed a quantitative analysis and concluded that the fair value was in fact less than the carrying value and an impairment loss of $3.6 million was recorded in the period.
Subsequently, the company completed a quantitative analysis and concluded that the fair value was in fact less than the carrying value and impairment losses of $1.0 73 million and $3.6 million were recorded in 2023 and 2022, respectively.
Trauma and deformity revenue, which includes the impact from current year acquisitions, increased $19.2 million, or 29%, primarily driven by increased sales in our PNP Femur, Cannulated Screws, Orthex systems and $11.2 million of sales generated from acquired businesses.
Trauma and deformity revenue, which includes the impact from acquired businesses, increased $21.7 million, or 26%, primarily driven by increased sales in our Pega, PNP Femur, Cannulated Screws, Orthex systems and $5.3 million of sales generated from acquired businesses.
This had a negative impact on our sales volume in 2022 and may continue to do so into the future. We are unable to accurately determine exactly how this will impact us in the future, but we will continue to monitor this dynamic as we get closer to the traditional peak of RSV season.
We are unable to accurately determine exactly how this will impact us in the future, but we will continue to monitor this dynamic as we get closer to the traditional peak of RSV season.
Cash Flows The following table sets forth our cash flows from operating, investing and financing activities for the periods indicated: Year Ended December 31, (in thousands) 2022 2021 2020 Net cash used in operating activities $ (21,766) $ (13,063) $ (18,530) Net cash used in investing activities (113,371) (7,411) (69,693) Net cash provided by financing activities 135,974 6 46,732 Effect of exchange rate changes on cash 619 (658) (404) Net increase (decrease) in cash and restricted cash $ 1,456 $ (21,126) $ (41,895) Cash Used in Operating Activities Net cash used in operating activities was $21.8 million, $13.1 million and $18.5 million for the years ended December 31, 2022, 2021 and 2020, respectively.
Cash Flows The following table sets forth our cash flows from operating, investing and financing activities for the periods indicated: Year Ended December 31, (in thousands) 2023 2022 Net cash used in operating activities $ (27,046) $ (21,766) Net cash provided by (used in) investing activities 41,677 (113,371) Net cash provided by financing activities 7,301 135,974 Effect of exchange rate changes on cash 633 619 Net increase in cash and restricted cash $ 22,565 $ 1,456 Cash Used in Operating Activities Net cash used in operating activities was $27.0 million and $21.8 million for the years ended December 31, 2023 and 2022, respectively.
Scoliosis revenue increased $5.4 million, or 19%, primarily driven by increased sales of our 4.5/5.0 and 5.5/6.0 RESPONSE systems, BandLoc and ApiFix as well as the sale and pull through of 7D. Sports medicine / other decreased $0.4 million, or 9%, due to lower external revenue from Telos.
Sco liosis revenue increased $4.5 million, or 13%, primarily driven by increased sales of our 4.5/5.0 and 5.5/6.0 RESPONSE systems and ApiFix as well as the sale and pull through of 7D. Sports medicine / other increased $0.2 million, or 6%.
We expect to increase our disclosures and communicate our ESG efforts in future SEC filings. Nothing on our website shall be deemed part of or incorporated by reference into this Annual Report on Form 10-K.
We believe effectively managing our priorities, as well as increasing our transparency related to ESG programs, will help create long-term value for our stakeholders. We expect to increase our disclosures and communicate our ESG efforts in future SEC filings. Nothing on our website shall be deemed part of or incorporated by reference into this Annual Report on Form 10-K.
For the year ended December 31, 2022, the change in fair value resulted in income of $25.9 million, compared to income of $1.8 million for the year ended December 31, 2021.
For the year ended December 31, 2023, the change in fair value resulted in income of $3.0 million, compared to income of $25.9 million for the year ended December 31, 2022. Interest expense for the year ended December 31, 2023 was less than $0.1 million compared to $0.7 million for the year ended December 31, 2022.
Gross margin was 74% for the year ended December 31, 2022 and 75% for the year ended December 31, 2021. The increase in cost of revenue was primarily driven by volume of units sold which included approximately $3.5 million from the result of acquisitions.
Gross margin was 75% for the year ended December 31, 2023 and 74% for the year ended December 31, 2022. The increase in cost of revenue was primarily driven by v olume of units sold which included approximately $1.7 million from the result of acquisitions. The gross margin includes a minimum performance obligation fee on the Firefly licensing agreement.
The mortgage balance was $0.9 million and $1.0 million as of December 31, 2022 and 2021, respectively. Contractual Obligations and Commitments The Company's cash requirements within the next twelve months include accounts payable, accrued compensation and benefits, current maturities of long-term debt, current portion of acquisition installment payable and other current liabilities.
Contractual Obligations and Commitments The Company's cash requirements within the next twelve months include accounts payable, accrued compensation and benefits, current maturities of long-term debt, current portion of acquisition installment payable and other current liabilities. The acquisition installment payable is related to the acquisition of ApiFix and MedTech - See Note 3.
This was offset by the cash paid for the first acquisition installment to ApiFix. The Company also utilized $31.0 million of its revolving credit facility with Squadron to fund the Pega acquisition. This was subsequently paid off in 2022. Net cash provided by financing activities in 2021 were immaterial to the results of our operations.
Net cash provided by financing activities for 2022 consisted primarily of the proceeds from the issuance of common stock and pre-funded warrants of $139.3 million, net of issuance costs. This was offset by the cash paid for the acquisition installment to ApiFix. The Company also utilized $31.0 million of its revolving credit facility with Squadron to fund the Pega acquisition.
Changes in estimates are reflected in reported results for the period in which they become known.
Changes in estimates are reflected in reported results for the period in which they become known. Actual results may differ materially from these estimates under different assumptions or conditions.
Following the impairment, the newly calculated fair value becomes the new accounting basis and carrying value of the trademark. Net Operating Losses As of December 31, 2022, we had federal, state and foreign tax net operating loss carryforwards, or NOLs, of approximately $117.1 million, $74.8 million and $24.4 million, respectively, which begin to expire in 2028 unless utilized.
As of December 31, 2023, the carrying value of these three trademarks was $10.4 million. Net Operating Losses As of December 31, 2023, we had federal, state and foreign tax net operating loss carryforwards, or NOLs, of approximately $118.9 million, $76.9 million and $26.3 million, respectively, which begin to expire in 2028 unless utilized.
Indebtedness Loan Agreement The Company is party to a Fourth Amended and Restated Loan and Security Agreement with Squadron, as amended from time to time (as amended, the “Loan Agreement”), which provides the Company with a $50.0 million revolving credit facility. As of December 31, 2022, there was no outstanding indebtedness under the Loan Agreement.
The debt facilities available under the Credit Agreement replace the Fourth Amended and Restated Loan and Security Agreement with Squadron (as amended, the “Squadron Loan Agreement”), which provided the Company with a $50 million revolving credit facility. There was no indebtedness outstanding under the Squadron Loan Agreement and it was terminated in connection with the Credit Agreement.
The primary use of this cash was to fund our operations related to the development and commercialization of our products in each of these years. Net cash used for working capital was $17.8 million, $12.6 million and $5.0 million for the years ended December 31, 2022, 2021 and 2020, respectively.
The primary use of this cash was for working capital. Net cash used for working capital was $32.2 million and $17.8 million for the years ended December 31, 2023 and 2022, respectively.
The majority of our revenue from implants, instruments and specialized braces has been generated in the United States. We sell our implants and instruments through a network of 41 independent sales agencies employing 197 sales representatives specifically focused on pediatrics. These independent sales agents are trained by us, distribute our products and are compensated through sales-based commissions and performance bonuses.
We sell our implants and instruments through a networ k of multiple direct sales representatives as well as nearly 40 independent sales agencies employing approximately 200 sales representatives specifically focused on pediatrics. These independent sales agents are trained by us, distribute our products and are compensated through sales-based commissions and performanc e bonuses.
We began selling direct to Canada in September 2018, Belgium and the Netherlands in January 2019, Italy in March 2020 and Germany, Switzerland and Austria in January 2021. In order to further enhance our operations in Europe, we established operating companies in the Netherlands and Germany in March 2019 and April 2022, respectively.
We began selling direct to Canada in September 2018, Belgium and the Netherlands in January 2019, Italy in March 2020 and Germany, Switzerland and Austria in January 2021. In these markets we work through sales agencies that are paid commissions.
The typical season 73 shows an increase in mid-September, peaks in late December and drops around mid-April; however, in 2022 the United States experienced a significant increase during the summer months. The volume of elective procedures utilizing our products were negatively impacted as a significant percent of hospital capacity was absorbed to cover the increase in RSV-related hospitalizations.
The typical season shows an increase in mid-September, peaks in late December and drops around mid-April; however, in 2022 the United States experienced a significant increase during the summer and fall months and in 2023 the United States experienced a significant increase in January and February as well as October through December months.
The increase was primarily due to the amortization on intangible assets acquired through the MD Ortho and Pega acquisitions and a full year of amortization associated with the purchase of the Band-Lok intellectual property and the purchases of licensing agreements, including the 7D Surgical FLASH TM Navigation platform, FIREFLY, and the 2021 scoliosis derotation license.
The increase was primarily due to a full year of amortization on intangible assets acquired through the MD Ortho and Pega acquisitions as well as the addition of MedTech Concepts and Rhino acquisitions.
Depreciation and amortization expenses increased $2.4 million, or 22%, from $10.7 million for the year ended December 31, 2021 to $13.1 million for the year ended December 31, 2022.
The increase was due primarily to the addition of personnel and resources to support the continued expansion of our business and stock compensation expense of $3.8 million. Depreciation and amortization expenses increased $4.3 million, or 33%, from $13.1 million for the year ended December 31, 2022 to $17.4 million for the year ended December 31, 2023 .
Net cash used in 78 2021 consisted primarily of the purchases of licenses of $7.9 million and the purchases of property plant and equipment, which were primarily instrument sets which were consigned in the United States and select international markets, of $8.1 million.
We also invested $10.0 million in property, plant and equipment, primarily instrument sets which were consigned in the United States and select international markets. Cash Provided By Financing Activities Net cash provided by financing activities was $7.3 million and $136.0 million for the years ended December 31, 2023 and 2022, respectively.
In these markets, we work through sales agencies that are paid a commission, similar to our U.S. sales model. These arrangements have generated an increase in revenue and gross margin. For the years ended 72 December 31, 2022, 2021 and 2020, international sales accounted for approximately 24%, 21% and 11% of our revenue, respectively.
For the years ended December 31, 2023, 2022 and 2021, international sales accounted for approximately 25%, 24% and 21% of our revenue, respectively.
The increase was primarily driven by the COVID-19 recovery in both domestic and global markets as well as $11.2 million of growth as a result of the MDO and Pega acquisitions.
Th e increase was primarily driven by increased market share across our product offerings as well as $5.3 million of growth as a result of the MDO and Pega acquisitions. Revenue from current year acquisitions is included in our trauma and deformity business.