William C. Schroer, MD
The mini-subvastus approach to total knee arthroplasty (TKA) is one of the most common alternatives to the medial parapatellar approach. The standard medial parapatellar approach has consistently yielded excellent and reproducible results in long-term studies but despite the success of this approach in providing ample visualization of the operative field, concerns remain about patient functional outcomes. Some investigators have reported both short and long-term deficits in quadriceps muscle function following total knee arthroplasty using the medial parapatellar approach. These deficits may be reflected in lower patient satisfaction with this procedure compared with that reported by surgeons. Additionally, disruption of the blood supply as a result of patellar eversion with this approach has been implicated in worse outcomes.
Several surgeons have developed alternative surgical approaches in an attempt to overcome the limitations of these standard techniques, with specific emphasis on limiting soft-tissue trauma, especially to the knee extensor mechanism. Collectively, these approaches are referred to as minimally invasive surgery for total knee arthroplasty. Specific benefits that have been ascribed to these techniques include better postoperative quadriceps muscle strength, decreased postoperative pain, shorter hospital stay and improved range of motion.
In this VJO new development video, William C. Schroer, MD demonstrates his surgical technique for mini-subvastus approach to TKA featuring a cruciate sacrificing , anterior stabilized tibial bearing.
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- Total Run Time: 26:23 minutes
- Catalog Number: 5112
- VJO Publication Date: December, 2010