Affiliation:
1. Oslo Sports Trauma Research Center, Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway
2. Hjelp24 NIMI, Oslo, Norway
3. Sykehuset Vestfold, Stavern, Norway
4. NAR, Oslo, Norway
Abstract
Background: A randomized controlled study has shown promising clinical results after treatment with sclerosing injections in a group of patients with patellar tendinopathy, but no study has investigated medium- or long-term outcome in a large and unselected group of patients. Purpose: To investigate if sclerosing treatment would affect the level of patellar tendon pain and knee function after 24 months in a large group of patients with patellar tendinopathy. Study Design: Case series; Level of evidence, 4. Methods: This prospective study recruited patients with a clinical diagnosis of jumper’s knee and visible neovascularization corresponding to the painful area on power Doppler ultrasound. They received up to a maximum of 5 ultrasound-guided sclerosing injections using polidocanol at 4- to 6-week intervals. Knee pain and function were recorded using the Victorian Institute of Sport Assessment–Patella (VISA-P) score before treatment and 6, 12, and 24 months after the first injection. Results: In total, 101 patients (15 women and 86 men) with 120 tendons were included and given from 1 to 5 sclerosing injections (mean [SD], 2.5 [0.9]). The patients reported a significantly improved VISA-P score from baseline (mean, 39; 95% confidence interval [CI], 36-42) to the 24-month follow-up (mean, 65; 95% CI, 60-70) (range, 21-100; P < .001, paired t test). However, a VISA-P score of >95 points was reported in only 22 cases (20%), whereas 37 cases (36%) reported a VISA-P score of <50 at 24 months. Conclusion: Sclerosing treatment with polidocanol resulted in a moderate improvement in knee function and reduced pain in a heterogeneous group of patients with patellar tendinopathy. Nevertheless, few of the patients were cured, and the majority still had reduced function and substantial pain after 24 months of follow-up.
Subject
Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine
Cited by
54 articles.
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