Robert Vaters
Analyst · Canaccord
Thanks, Jeff and good afternoon everyone. Thanks for joining us on our fourth quarter 2011 earnings call. Hopefully, you've all had a chance to see our press release today. I'll start the call by providing some key highlights that led to a record revenue, improved adjusted operating margin, as well as our big jump in earnings per share. I will then turn it over to Brian to give more detail on financial results and 2012 guidance, followed by some general comments before kicking it off for Q&A.
The fourth quarter top line growth was driven by our strong performance in both our orthopedics and sports medicine global business units and continued success of our regenerative biologics offering.
We are encouraged by the third straight quarter of sequential growth in our Regenerative Spine Stimulation business, which was flat year-over-year for the quarter. Our focus of improving operating efficiencies, as well as an increased mix of regenerative biologics and orthopedic sales led to the strong adjusted operating profit results.
The company's operating cash flow generation and resulting free cash flow continues to strengthen our balance sheet, which provides us a strategic advantage to invest in our business. This is particularly the case with stimulation, where many of our competitors do not have such a luxury due to their debt burden.
I will start with our top line results, which we pre-announced in January. Net sales were $151.5 million in the fourth quarter 2011, up 5% from $143.8 million in the fourth quarter 2010. On a constant currency basis, sales were up 6%.
Overall, our Spine sector remained essentially flat at $78.6 million. These results were driven by strong biologics revenue growth, which was offset by market-driven weakness in implants. In addition, stimulation products where flat compared to the prior year, but were up again sequentially.
Notable here was our continued success with our proprietary, Trinity Evolution stem cell allograft, as surgeons are looking for safe alternatives to autograft and BMP-2. Offsetting the strength in biologics was our spinal implant business, which as I mentioned was impacted by continued pricing pressures and reimbursement scrutiny for fusions. While we expect these challenges to continue, at least in the near term, we are improving our product launch cadence and feel good about our position to optimize and expand our distribution footprint in order to offset these issues.
In particular, with our unique mix of implants to repair the spinal anatomy along with biologics and stimulation solutions to regenerate bone, we believe we have a unique value proposition for our customers and ultimately patients. We will continue to invest in products and new technologies that enhances value proposition as evidenced by our recent announcement regarding our new development agreement with MTF. Through this agreement we are collaborating to deliver another natural and novel biologics solution that is complimentary to Trinity Evolution and is responsive to surgeon’s increased demand for natural bone grafting. Again we expect this launch to be in 2013. Our combined Spine revenues worldwide represented 52% of our overall topline sales.
Moving on to Orthopedics, our revenue was $44.5 million, up a reported 16% or 17% on a constant currency basis. This increase was led by our market leading external fixation product offering, which continues to benefit from our direct markets globally and the non-elective nature of many trauma products. Local markets, which experienced high growth, were the UK, France, Germany and Brazil. At the recent American Academy of Orthopaedic Surgeons annual meeting, we announced the outside U.S. launch of our Galaxy external fixation system. This system is designed for use in complex, orthopedics trauma applications and brings simplicity and stability to a new level.
In addition we are pleased with the initial response to our U.S. internal fixation product launches in the foot and ankle market. At AAOS, we also launched our ankle compression nail for hindfoot fusions and our new Lapidus Plate for midfoot fusions both of which will contribute to our 2012 revenue. As with our Spine business, we believe our orthopedics hardware product offerings to repair bone along with our biologics and stimulation solutions for regeneration create a unique value proposition for the patient, surgeon and hospital. Orthopedics revenues represent 29% of our total sales.
Moving on to Sports Medicine, fourth quarter net sales were $27.5 million, up 10% from $25.1 million in the fourth quarter 2010. The fourth quarter of 2011 includes revenue from a billing capability that was added during the first quarter of 2011. This drove about 7% of the growth and over the past year, this business has returned to growth as a result of a number of new products and the integration of this billing capability. Sports Medicine revenues represented 18% of our overall total revenues for the quarter.
Revenues from Divested Products were down to $900,000 from $1.7 million last year. These smaller trailing revenues were expected after we made the strategic decision to exit some non-core businesses like anesthesia and vascular. What you continue to see here are tail revenues to support our vascular partner, Covidien.
Moving past revenue on our income statement, our overall gross margin for the fourth quarter was 76.8% compared to 77.3% in the fourth quarter of 2010. Gross profit in the quarter was impacted negatively by pricing pressures in spine implants and Sports Medicine along with an unfavorable geographic mix as all-U.S. contributed 25% of total sales compared to 22% in the prior year.
Let me now turn over to Brian for more financial details including our 18.1% adjusted operating margin, our 23% increase in adjusted net income and also our guidance for 2012.