Midterm Outcome of Avon Patellofemoral Arthroplasty for Posttraumatic Unicompartmental Osteoarthritis

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• 作者：Sujith Konan ; MBBS ; MD(res) ; FRCS(Tr&Orth) ; Fares S. Haddad ; MD(res) ; FRCS (Orth) ; FFSEM
• 关键词：patellofemoral arthroplasty ; AVON PFJ ; outcomes ; unicompartmental arthroplasty ; survival ; PFJ arthroplasty
• 刊名：The Journal of Arthroplasty
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：31
• 期：12
• 页码：2657-2659
• 全文大小：282 K

文摘

Patellofemoral arthroplasties have been successfully used in the management of isolated patellofemoral joint (PFJ) osteoarthritis (OA). We hypothesized that in posttraumatic PFJ OA, isolated unicompartmental arthroplasty should be associated with reliable pain relief, patient satisfaction, and functional outcome at midterm follow-up.

Methods

Fifty-one Avon PFJ (Stryker, Mahwah, NJ) isolated unicompartmental arthroplasties (47 patients; 29 men, 18 women) were identified at a mean follow-up of 7.1 years (range, 5-11 years). The average age at surgery was 57 years (range, 37-69 years).

Results

All patients reported excellent pain relief, satisfaction, and functional outcomes. Median Oxford Knee Score was 38 at latest follow-up with a significant improvement from preoperative scores (P < .0005). There were 2 revisions: 1 for pain and 1 for progression of OA. The probability for survival (Kaplan-Meyer analysis) with revision as end point was 96.1%.

Conclusion

The study has shown good midterm results for Avon PFJ (Stryker, Mahwah, NJ) system in posttraumatic PFJ OA, at midterm follow-up in a relatively young patient cohort.