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Simultaneous bilateral unicompartmental knee replacement improves gait parameters in patients with bilateral knee osteoarthritis
- Source :
- The Knee. 26(6)
- Publication Year :
- 2019
-
Abstract
- Unicompartmental knee replacement (UKR) can provide reliable clinical and functional outcomes when performed simultaneously in both knees for treating bilateral osteoarthritis (OA). No studies to date have evaluated gait pattern after simultaneous bilateral UKR. The aim of this study was to evaluate changes in gait variables after bilateral single-stage UKR (B-UKR) and to compare them with the outcomes after unilateral UKR in two other groups of patients: one with bilateral knee OA (P-UKR) and one with the contralateral knee unaffected (H-UKR).Three-dimensional motion cohort data were prospectively collected before and six months after surgery; 37 were allocated to the B-UKR (n = 13), P-UKR (n = 12) or H-UKR (n = 12) group. Spatiotemporal variables (stride length, gait speed, gait cadence, stance phase, swing phase, and double support phase) and kinematic parameters (knee flexion and extension peak values, knee range of motion (ROM), and hip abduction peak value) were analyzed using mixed analysis of variance (ANOVA). The magnitude of effect for significant outcomes (ES) was determined using Cohen's d.Postoperative improvement in gait cadence (P 0.01; ES = 1.20), walking speed (P 0.05; ES = 0.58), stride length (P 0.05; ES = 0.67), knee ROM (P 0.05; ES = 0.89), knee flexion (P 0.05; ES = 0.94), and hip abduction (P 0.001; ES = 1.16) was noted for the B-UKR group, whereas only stride length improved (P 0.05; ES = 0.48) for the H-UKR group, and no changes in any gait parameter were seen for the P-UKR group.Postoperative improvement in gait parameters was observed in the B-UKR patients with bilateral OA. Whenever possible, simultaneous bilateral UKR should be considered in such patients.
- Subjects :
- Male
medicine.medical_specialty
Double support phase
Osteoarthritis
Unicompartmental knee replacement
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Physical medicine and rehabilitation
Gait (human)
Medicine
Humans
Orthopedics and Sports Medicine
In patient
Range of Motion, Articular
Arthroplasty, Replacement, Knee
Aged
030222 orthopedics
business.industry
030229 sport sciences
Middle Aged
Osteoarthritis, Knee
medicine.disease
Biomechanical Phenomena
Walking Speed
Gait analysis
Female
business
Range of motion
Cadence
Gait Analysis
human activities
Subjects
Details
- ISSN :
- 18735800
- Volume :
- 26
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- The Knee
- Accession number :
- edsair.doi.dedup.....d8acba9d32f960565b6e862a8a553fc9