Analysis of knee flexion characteristics and how they alter with the onset of knee osteoarthritis: a case control study

BMC Musculoskeletal Disorders

Ganit Segal³  Avi Elbaz³  Amit Mor³  Diana Hodgins²  Ian McCarthy¹ 

[1] Royal National Orthopaedic Hospital, Stanmore, UK;European Technology for Business Ltd, Codicote, UK;AposTherapy Research Group, 1st Abba Even Blvd, Herzliya 46733, Israel

关键词: Electronic measurement systems;    Gait;    Osteoarthritis;   

Others  :  1132629
DOI  :  10.1186/1471-2474-14-169

 received in 2012-04-30, accepted in 2013-05-14,  发布年份 2013

【 摘 要 】

Background

The purpose of this study was to examine the differences in gait profile between patients with knee osteoarthritis (OA) and healthy control and to create motion characteristics that will differentiate between them.

Methods

Twenty three patients diagnosed with knee OA and 21 healthy matched controls underwent a gait test using a sensor system (gaitWALK). Gait parameters evaluated were: stride duration, knee flexion range of motion (ROM) in swing and stance. T-Test was used to evaluate significant differences between groups (P < 0.05).

Results

Patients with knee OA had significant lower knee flexion ROM (10.3° ± 4.0°) during stance than matched controls (18.0° ± 4.0°) (p < 0.001). Patients with knee OA had significant lower knee flexion ROM (54.8° ± 5.5°) during swing than matched controls (61.2° ± 6.1) (p = 0.003). Patients with knee OA also had longer stride duration (1.12 s ± 0.09 s) than matched controls (1.06 s ± 0.11 s), but this was not statistically significant (p = 0.073). Motion characteristics differentiate between a patient with knee OA and a healthy one with a sensitivity of 0.952 and a specificity of 0.783.

Conclusions

Significant differences were found in the gait profile of patients with knee OA compared to matched control and motion characteristics were identified. This test might help clinicians identify and evaluate a knee problem in a simple gait test.

【 授权许可】

   
2013 McCarthy et al.; licensee BioMed Central Ltd.

【 图 表 】

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