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

Hosam E Matar; Rajesh Bawale; Jeffrey D Gollish

doi:10.1016/j.jor.2020.01.050

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

J Orthop. 2020 Feb 4:21:14-18. doi: 10.1016/j.jor.2020.01.050. eCollection 2020 Sep-Oct.

Authors

Hosam E Matar¹, Rajesh Bawale¹, Jeffrey D Gollish¹

Affiliation

¹ The Holland Orthopaedic and Arthritic Centre, Sunnybrook Health Sciences Centre, Toronto, Canada.

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.

Keywords: Extensor mechanism reconstruction; Patellectomy; Total knee arthroplasty; Tubeplasty.