Ainhoa Nekane Toro-Ibarguen1, Rafael Navarro-Arribas2, Juan Pretell-Mazzini3, Alfonso Carlos Prada-Cañizares1, Fernando Jara-Sánchez4. 1. Orthopaedic Department, Hospital 12 de Octubre, Madrid, Spain. 2. Arthroplasty Division, Orthopaedic Department, Hospital 12 de Octubre, Madrid, Spain. 3. Muskuloskeletal Oncology Division, Miller School of Medicine, University of Miami, Miami, Florida. 4. Arthroplasty Division, Hospital 12 de Octubre, Complutense University of Madrid, Madrid, Spain.
Abstract
BACKGROUND: Secondary patellar resurfacing (SPR) is a procedure that can be used in patients with persistent anterior knee pain (AKP) after a primary total knee arthroplasty. The aim of our study was to analyze the clinical and functional outcomes as well as the complications of this procedure and identify predictive factors for a favorable outcome. METHODS: Forty-six patients who underwent SPR for persistent AKP after primary total knee arthroplasty were retrospectively studied. The patient's mean age was 68 years (range, 36-86 years). The average follow-up time after SPR was 74 months (range, 24-197 months). Demographic data, Knee Society Score scale, range of motion, pain improvement (Visual Analogue Scale), overall satisfaction, and complications were recorded. The statistical analysis was performed using STATA tm/SE v10. RESULTS: There was an improvement of the Knee Society scale (from 54 ± 11 to 64 ± 16 points; P < .05). However, in 59% of the cases, there was no pain improvement, and 65% of patients were not satisfied. Four patients showed complications, and in 2 cases, reoperation was necessary. We did not find any preoperative predictive factor for a favorable outcome after SPR. CONCLUSION: Despite improvement of the Knee Society scale, many patients continue with AKP and are dissatisfied with this procedure; therefore, we do not recommend it in this clinical scenario.
BACKGROUND: Secondary patellar resurfacing (SPR) is a procedure that can be used in patients with persistent anterior knee pain (AKP) after a primary total knee arthroplasty. The aim of our study was to analyze the clinical and functional outcomes as well as the complications of this procedure and identify predictive factors for a favorable outcome. METHODS: Forty-six patients who underwent SPR for persistent AKP after primary total knee arthroplasty were retrospectively studied. The patient's mean age was 68 years (range, 36-86 years). The average follow-up time after SPR was 74 months (range, 24-197 months). Demographic data, Knee Society Score scale, range of motion, pain improvement (Visual Analogue Scale), overall satisfaction, and complications were recorded. The statistical analysis was performed using STATA tm/SE v10. RESULTS: There was an improvement of the Knee Society scale (from 54 ± 11 to 64 ± 16 points; P < .05). However, in 59% of the cases, there was no pain improvement, and 65% of patients were not satisfied. Four patients showed complications, and in 2 cases, reoperation was necessary. We did not find any preoperative predictive factor for a favorable outcome after SPR. CONCLUSION: Despite improvement of the Knee Society scale, many patients continue with AKP and are dissatisfied with this procedure; therefore, we do not recommend it in this clinical scenario.
Authors: Sorin Radu Fleaca; Cosmin Ioan Mohor; Horatiu Dura; Radu Chicea; Calin Mohor; Adrian Boicean; Mihai Dan Roman Journal: Exp Ther Med Date: 2021-12-01 Impact factor: 2.447
Authors: Chloe E H Scott; Nicholas D Clement; Liam Z Yapp; Deborah J MacDonald; James T Patton; Richard Burnett Journal: J Bone Joint Surg Am Date: 2019-09-04 Impact factor: 5.284