Hip and knee weakness and ankle dorsiflexion restriction in individuals following lateral patellar dislocation: A case-control study

Arrebola, Lucas, Smith, Toby, Silva, Fabrícia, de Oliveira, Vanessa, de Oliveira, Pedro, Wun, Paloma and Pinfildi, Carlos (2019) Hip and knee weakness and ankle dorsiflexion restriction in individuals following lateral patellar dislocation: A case-control study. Clinical Journal of Sport Medicine. ISSN 1536-3724

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Abstract

Objective: To explore the relationship between ankle dorsiflexion range of motion (ROM) and hip and knee muscle strength between patients with a history of patellar dislocation (PD) to healthy controls. Design: Case-control study. Setting: Orthopaedical specialty outpatient clinic at a tertiary hospital. Participants: 88 individuals were recruited; 44 individuals aged 16 years or older, of both sexes, with a history of at least one episode of atraumatic unilateral or bilateral PD requiring emergency care (14 males; 30 females; mean age 20 years) and 44 healthy (control) individuals (11 males; 33 females; mean age 21 years) matched for age, weight and height to PD cases. Intervention: Assessment of hip and knee strength and ankle dorsiflexion ROM. Outcome measures: Ankle dorsiflexion ROM was assessed through the lunge test with a goniometer. Hip and knee muscle strength was evaluated through isometric hand-held dynamometry. Differences between healthy and control individuals were assessed using Student T-Tests and Mann-Whitney U Test. Results: PD individuals presented with a reduced ankle dorsiflexion ROM (mean difference (MD): 9°; effect size (ES): 1.39; p<0.001) and generalised hip and knee weakness (MD range: 4.74 kgf to 31.4 kgf; ES range: 0.52 to 2.35; p<0.05) compared to healthy subjects. Conclusion: Individuals with a history of PD have reduced ankle dorsiflexion ROM and hip and knee muscle strength compared to healthy controls.

Item Type: Article
Uncontrolled Keywords: patellar dislocation,patellofemoral joint,ankle joint,range of motion,muscle weakness,lower extremity
Faculty \ School: Faculty of Medicine and Health Sciences > School of Health Sciences
Depositing User: LivePure Connector
Date Deposited: 18 Nov 2019 12:30
Last Modified: 18 Mar 2020 05:02
URI: https://ueaeprints.uea.ac.uk/id/eprint/72988
DOI: 10.1097/JSM.0000000000000815

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