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Accelerometer-Based, Computer-Navigated Total Knee Arthroplasty to Correct a Complex Deformity in a Patient With
Bhavik H Patel1, Erik Zeegen2, Adam Sassoon2
1Department of Orthopaedic Surgery, University of Illinois at Chicago, Chicago, IL, USA.
Arthroplasty Today
|September 23, 2020
Summary
Accelerometer-based computer-assisted navigation systems (ABCANSs) improved total knee arthroplasty (TKA) alignment in a complex case. This technology facilitated excellent patient outcomes and satisfaction in treating severe knee deformity.
Area of Science:
- Orthopedics
- Surgical Navigation
Background:
- Total knee arthroplasty (TKA) can be challenging with complex deformities.
- Extra-articular deformities often require advanced surgical techniques for accurate alignment.
Purpose of the Study:
- To present a case report on using an accelerometer-based computer-assisted navigation system (ABCANS) for TKA.
- To demonstrate the effectiveness of ABCANS in correcting severe valgus deformity.
Main Methods:
- An ABCANS-assisted TKA was performed using the KneeAlign 2 system.
- The system allowed for tailored angular correction to address the patient's specific deformity.
- The patient underwent a one-year prospective follow-up, including radiographic assessment and patient-reported outcome measures (PROMs).
Main Results:
- Preoperative valgus alignment of 25° was corrected to 4° postoperatively.
- The patient achieved a final range of motion of 0-135° with no instability.
- Excellent patient satisfaction and high scores on multiple PROMs were reported.
Conclusions:
- ABCANS-assisted TKA is a viable technique for complex cases with extra-articular deformity.
- This approach can lead to significant improvements in knee alignment and patient outcomes.
- The case report highlights the successful application and benefits of ABCANS in TKA.
