Exhibit 99.1

RTI BIOLOGICS ANNOUNCES 2011 FOURTH QUARTER, FULL YEAR RESULTS, 2012 FINANCIAL GUIDANCE

– Company Achieves Record Annual Revenues, Will Hold Conference Call at 8:30 a.m. ET –

ALACHUA, Fla. (Jan. 31, 2012) – RTI Biologics Inc. (RTI) (Nasdaq: RTIX), a leading provider of orthopedic and other biologic implants, reported operating results for the fourth quarter and full year of 2011 as follows:

Quarterly Highlights:

2011 Full Year Highlights:

“We are very pleased with our fourth quarter results, which ended a strong year of execution for RTI,” said Brian K. Hutchison, president and chief executive officer of RTI. “Despite the challenging economic environment in 2011, we saw growth in all of our business lines while significantly increasing cash flow, decreasing inventories and improving gross margins each quarter.”

Fourth Quarter 2011

Worldwide revenues of $42.9 million for the fourth quarter of 2011 were down 5 percent, on an as reported basis, compared to the fourth quarter of 2010, but were up 2 percent excluding dental stocking orders in the fourth quarter of 2010 as a result of the new agreement with the company’s dental distributor. Domestic revenues of $37.8 million for the fourth quarter of 2011 were down 8 percent compared to the fourth quarter of 2010. Excluding the dental stocking orders from the company’s dental distributor in the fourth quarter of 2010, domestic revenues would have been comparable to the fourth quarter of 2010, primarily based on the strength of the sports medicine and BGS/GO businesses. International revenues of $5.1 million increased 20 percent compared to the fourth quarter of 2010 due to the strength of the international dental business, along with increased volume of surgical specialties, BGS/GO and sports medicine implants into certain countries. On a constant currency basis, international revenues increased 21 percent compared to the fourth quarter of 2010.

For the fourth quarter of 2011, the company reported net income of $2.4 million and net income per fully diluted share of $0.04, based on 55.7 million fully diluted shares outstanding, compared to net income of $2.8 million and net income per fully diluted share of $0.05 based on 54.9 million fully diluted shares outstanding. Fourth quarter 2010 net income per share was favorably impacted by approximately $0.01 due to recognition of the full 2010 research and experimentation tax credit in the quarter.

Full Year 2011

Worldwide revenues of $169.3 million for the full year of 2011 were up 2 percent compared to 2010, on an as reported basis, but were up 10 percent if the new terms with the company’s dental distributor had been in effect for the full year of 2010 and excluding the related dental stocking orders. Domestic revenues of $148.3 million for the full year of 2011 were comparable to 2010. If the new terms with the company’s dental distributor had been effective for the full year of 2010 and excluding the related dental stocking orders, domestic revenues would have increased 9 percent, primarily based on the strength of the sports medicine, spine, surgical specialties and BGS/GO businesses. International revenues of $21 million for the full year of 2011 increased 15 percent, compared to 2010, primarily on the strength of the international dental and surgical specialties businesses. On a constant currency basis, international revenues increased 10 percent for the full year of 2011 compared to 2010.

For the full year of 2011, the company reported net income of $8.4 million and net income per fully diluted share of $0.15, based on 55.4 million fully diluted shares outstanding, compared to a net loss of $129 million and a net loss per fully diluted share of $2.36 based on 54.7 million fully diluted shares outstanding. Full year 2011 results were favorably impacted by approximately $0.01 due to the de-recognition of an uncertain tax liability as a result of Internal Revenue Service guidance provided during the third quarter of 2011 and applicable to the deductibility of transaction fees incurred as part of the Tutogen merger in 2008. Full year 2010 results included a decrease in net income of $134.7 million, or $2.46 per fully diluted share, due to a goodwill impairment charge in the third quarter of 2010.

Fiscal 2012 and First Quarter Outlook

The company expects full year revenues for 2012 to be between $174 million and $176 million. Full year net income per fully diluted share is expected to be in the range of $0.15 to $0.17, based on 55.8 million fully diluted shares outstanding.

For the first quarter of 2012, the company expects revenues to be between $41 million and $42 million, and net income per fully diluted share to be approximately $0.03.

“We expect that revenues in 2012 will be driven by continued growth in our direct distribution and international groups,” Hutchison said. “We anticipate growth rates at or above the market in all areas of our business. Over the course of 2012, we will be increasing our investment in new product development initiatives that we anticipate will accelerate our future revenue growth.”

Conference Call

RTI will host a conference call and simultaneous audio webcast to discuss the fourth quarter results at 8:30 a.m. ET today. The conference call can be accessed by dialing (877) 383-7419. The webcast can be accessed through the investor section of RTI’s website at www.rtix.com. A replay of the conference call will be available on the RTI website for one month following the call.

About RTI Biologics Inc.

RTI Biologics Inc. is a leading provider of sterile biologic implants for surgeries around the world with a commitment to advancing science, safety and innovation. RTI prepares human donated tissue and bovine tissue for transplantation through extensive testing and screening and using proprietary processes. These allograft and xenograft implants are used in orthopedic, dental and other specialty surgeries.

RTI’s innovations continuously raise the bar of science and safety for biologics – from being the first company to offer precision-tooled bone implants and assembled technology to maximize each gift of donation, to inventing validated sterilization processes that include viral inactivation steps. Two such processes – the BioCleanse® Tissue Sterilization Process and the Tutoplast® Tissue Sterilization Process – have a combined record of millions of implants distributed with zero incidence of allograft-associated infection. These processes have been validated by tissue type to inactivate or remove viruses, bacteria, fungi and spores from the tissue while maintaining biocompatibility and functionality.

RTI’s worldwide corporate headquarters are located in Alachua, Fla., with international locations in Germany and France. The company is accredited by the American Association of Tissue Banks in the United States and is a member of AdvaMed.

Forward Looking Statement

This communication contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on management’s current

expectations, estimates and projections about our industry, our management’s beliefs and certain assumptions made by our management. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” variations of such words and similar expressions are intended to identify such forward-looking statements. In addition, except for historical information, any statements made in this communication about anticipated financial results, growth rates, new product introductions, future operational improvements and results or regulatory approvals or changes to agreements with distributors also are forward-looking statements. These statements are not guarantees of future performance and are subject to risks and uncertainties, including the risks described in public filings with the U.S. Securities and Exchange Commission (SEC). Our actual results may differ materially from the anticipated results reflected in these forward-looking statements. Copies of the company’s SEC filings may be obtained by contacting the company or the SEC or by visiting RTI’s website at www.rtix.com or the SEC’s website at www.sec.gov.

RTI BIOLOGICS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Operations

(In thousands, except share and per share data)

(Unaudited)

RTI BIOLOGICS, INC. AND SUBSIDIARIES

Reconciliation of Net Income (Loss) and Net Income (Loss) Per Diluted Share to

Adjusted Net Income and Adjusted Net Income Per Diluted Share

(In thousands except per share data)

(Unaudited)

Use of Non-GAAP Financial Measures

To supplement RTI Biologic’s condensed consolidated financial statements presented on a GAAP basis, the company discloses certain non- GAAP financial measures that exclude certain amounts, including non-GAAP net income and non – GAAP net income per fully diluted share. These non-GAAP financial measures are not in accordance with, or an alternative for, generally accepted accounting principles in the United States. Reconciliations of each of these non-GAAP financial measures to the corresponding GAAP measures are included in the reconciliation above.

The following is an explanation of the adjustment that management excluded as part of the non-GAAP measures for the year ended December 31, 2010 as well as the reasons for excluding the individual item:

Goodwill impairment – This adjustment represents the write-off of remaining goodwill created through a purchase transaction. Management removes the impact of the goodwill impairment charge from the company’s operating results to assist in assessing its operating performance in the current period and to supplement a comparison to the company’s past operating performance.

Material Limitations Associated with the Use of Non-GAAP Financial Measures

Non-GAAP net income and non-GAAP net income per fully diluted share should not be considered in isolation, or as a replacement for GAAP measures.

Usefulness of Non-GAAP Financial Measures to Investors

The company believes that presenting non-GAAP net income and non-GAAP net income per fully diluted share in addition to the related GAAP measures provide investors greater transparency to the information used by management in its financial decision-making, which excludes the goodwill impairment. The company further believes that providing this information better enables RTI Biologic’s investors to understand the company’s overall core performance and to evaluate the methodology used by management to assess and measure such performance.

RTI BIOLOGICS, INC. AND SUBSIDIARIES

Condensed Consolidated Revenues

(In thousands)

(Unaudited)

RTI BIOLOGICS, INC. AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(In thousands)

(Unaudited)

RTI BIOLOGICS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)