Turktas U, Piskin A, Poehling GG. Short-term outcomes of robotically assisted patello-femoral arthroplasty.
INTERNATIONAL ORTHOPAEDICS 2015;
40:919-24. [PMID:
25940605 DOI:
10.1007/s00264-015-2786-7]
[Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 04/04/2015] [Indexed: 12/25/2022]
Abstract
PURPOSE
The purpose of this study was to determine the outcomes in patients treated with robotically assisted patello-femoral arthroplasty (PFA).
METHODS
This technique offers a safe, reliable, and reproducible way of obtaining correct implant positioning in patello-femoral arthroplasty, and as a result, reduces revision surgery due to implant malalignment. We evaluated 30 knees in 29 patients who underwent robotically assisted patello-femoral arthroplasty between June 2009 and May 2011. Mean follow-up was 15.9 months. This was a retrospective study that involved chart reviews and radiographic analysis. Radiographic analysis included pre-operative and postoperative plain films for implant positioning. Functional outcomes were evaluated using the Oxford Knee Score (OKS), range of motion, University of California at Los Angeles (UCLA) patient activity-level ratings, visual analog pain scale (VAS), and the Knee Society Score (KSS).
RESULTS
The patients had an average OKS of 21.7 pre-operatively and reached an average of 33.5 postoperatively (p = 0.0033). Pre-operative UCLA patient activity-level ratings was 3.1, compared with 4.8 postoperatively. Average VAS pre-operatively was 8 and postoperatively it decreased to 2.1 (p = 0.0033). The average KSS final score pre-operatively was 56 and postoperatively it increased to 68.3 while the functional score pre-operatively was 47.2 compared to 68.1 postoperatively (p = 0.011). As a result, patello-femoral arthroplasty is an emerging knee resurfacing technique that is an alternative to the total knee arthroplasty.
CONCLUSIONS
The early retrospective data for robotically-assisted PFA show encouraging results. Advantages of this technique include a smaller incision, faster rehabilitation, preservation of bone stock, and implantation without malalignment.
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