Zimmer Biomet Holdings, Inc. is launching enhancements to its OSS Orthopedic Salvage System, “a comprehensive set of joint reconstruction prostheses designed to treat patients suffering from bone loss due to tumor resection, ligamentous deficiencies, orthopaedic trauma or patients who have undergone multiple knee and hip revision arthroplasties.”
Zimmer Biomet Launches Salvage System Enhancements
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A June 16, 2016 announcement of the global commercial launch of the enhancements stated the OSS is the “first and only” limb salvage system utilizing OsseoTi, a proprietary porous metal technology that is designed to mimic cancellous bone architecture and promote biologic fixation through tissue ingrowth. The system was first introduced in 2000 and has been used in more than 15, 000 patients to date worldwide.
The company said the enhancements to the system include implant designs for the distal femur and diaphysis, small diameter Splined Stems and new implant components created with OsseoTi Porous Metal Technology:
- Updated Standard Size (3 cm and 5 cm) and Reduced Size (3 cm and 5 cm) distal femoral components featuring Vanguard Patellofemoral Articulation
- Standard distal femoral component (3 cm) compatible to accept OsseoTi Femoral Sleeve Augments
- Tapered Diaphyseal Segments designed to accept Modular OsseoTi Diaphyseal Sleeve Augments
- Splined Stems to provide torsional stability through interference fit and splines
Additionally, the system’s surgical instrumentation platform now includes Universal Quick Connection. The company says the quick connection offers surgeons “greater ease-of-use and expandable implant provisionals to improve intraoperative speed and flexibility during certain complex limb salvage procedures.”
Todd Davis, vice president and general manager of Zimmer Biomet’s knee business, said the upgrades reinforce Zimmer Biomet’s commitment to partnering with surgeons by “expanding and refining our product offering to improve the ease and efficiency of the surgical experience and improve procedure outcomes.”
OsseoTi Porous Metal Technology
The company literature or press release says OsseoTi Porous Metal technology is a “cutting edge” technology which prints metal and porous structure together to create a unified three-dimensional porous homogenous construct that is designed to mimic cancellous bone architecture1 and promote biologic fixation through tissue ingrowth. The Orthopedic Salvage System is the first limb salvage system in the U.S. to employ this technology.
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This is a fascinating development. In my practice we've seen similar outcomes with the revised protocol. The key differentiator seems to be patient selection criteria. Has anyone else noticed the correlation with BMI thresholds?
Great point. I'd push back slightly on the conclusion, the sample size in the cited study is too small to draw population-level inferences. That said, the directional signal is compelling and worth a larger RCT.
We implemented a similar approach last year. Early results are promising but we're still gathering 12-month follow-up data. Happy to share our protocol if anyone is interested.
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