Extensor mechanism reconstruction "Tubeplasty" in total knee arthroplasty with previous patellectomy: Surgical technique and clinical outcomes.

ABSTRACT

PURPOSE: to evaluate our consecutive series of tubeplasty and extensor mechanism reconstruction during knee arthroplasty in patients with previous patellectomy. METHODS: we describe our surgical technique and present a retrospective consecutive series of 4 patients with a minimum 6 months follow-up. Knee society score (KSS), clinical and radiographic outcomes were collected at final follow up. RESULTS: we included 4 patients (2 males/2 females) with average age 65.5 years (range 58-76). There were 2 primary and 2 revision knee arthroplasties. The follow up ranged from 0.5 to 13 years. All 4 patients regained function and satisfactory clinical outcomes with KSS score 84.7 (range 79-90). CONCLUSION: satisfactory clinical outcomes can be achieved with extensor mechanism reconstruction and tubeplasty in patients with previous patellectomy undergoing primary and revision knee arthroplasty. LEVEL OF EVIDENCE IV.