Perceived Instability Is Associated With Strength and Pain, Not Frontal Knee Laxity, in Patients With Advanced Knee Osteoarthritis
| Autor: | Ajit M.W. Chaudhari, Robert A. Siston, Erin E. Hutter, Xueliang Pan, Laura C. Schmitt, Jacqueline M Lewis, Gregory M Freisinger |
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| Rok vydání: | 2019 |
| Předmět: |
Joint Instability
Male musculoskeletal diseases medicine.medical_specialty Knee Joint medicine.medical_treatment Pain Physical Therapy Sports Therapy and Rehabilitation Osteoarthritis Instability Article medicine Humans In patient Muscle Strength Prospective Studies Aged biology business.industry General Medicine Middle Aged Osteoarthritis Knee musculoskeletal system biology.organism_classification medicine.disease Arthroplasty body regions Valgus Knee laxity Physical therapy Female Perception Self Report business human activities Knee instability |
| Zdroj: | J Orthop Sports Phys Ther |
| ISSN: | 1938-1344 0190-6011 |
| Popis: | BACKGROUND: Increased varus/valgus laxity and perceived knee instability are independently associated with poor outcomes in people with knee osteoarthritis. However, the relationship between laxity and perceived instability is unclear. OBJECTIVE: To assess whether knee extensor strength, pain, and knee laxity are related to perceived knee instability in patients with advanced knee osteoarthritis. METHODS: This was a secondary analysis of a prospective observational cohort study of 35 patients (24 female; mean ± SD age, 60 ± 8 years; body mass index, 33 ± 5 kg/m(2)) with knee osteoarthritis awaiting total knee arthroplasty (36 knees). Within 1 month before arthroplasty, we measured isometric knee extension strength and self-reported knee pain (using the Knee injury and Osteoarthritis Outcome Score pain subscale). Patients rated their perception of knee instability as moderate to severe (n = 20) or slight to none (n = 15 patients, n = 16 knees) using the Knee Outcome Survey. We measured intraoperative varus/valgus knee laxity. RESULTS: Lower knee extension strength (P = .01) and greater pain (P |
| Databáze: | OpenAIRE |
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