Recurrent patellar dislocations in adolescents result in decreased knee flexion during the entire gait cycle.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
Carlo CamathiasKathrin Studer

Abstract

To evaluate the kinematics/kinetics of the ankle, knee, hip in the sagittal plane in adolescents with recurrent patellar dislocation in comparison to a healthy control. Case-control study. Eighty-eight knees (67 patients) with recurrent patellar dislocation (mean age 14.8 years ± 2.8 SD) were compared to 54 healthy knees (27 individuals, 14.9 years  ± 2.4 SD). Kinematics/kinetics of ankle, knee, hip, and pelvis were captured using 3D-gait analysis (VICON, 12 cameras, 200 Hz, Plug-in-Gait, two force plates). One cycle (100%) consisted of 51 data-points. The mean of six trials was computed. The loading-response increased by 0.02 s ± 0.01SE (10.8%) with dislocations (0.98% of total gait, P < 0.01). The mid-stance-phase decreased equally (P < 0.01). Dislocation decreased knee flexion during the entire gait cycle (P < 0.01), with the largest difference during mid-stance (9.0° ± 7.2 SD vs. 18.5° ± 6.7 SD). Dislocation increased plantar-flexion during loading response 4.1° ± 0.4 SE with (P < 0.01), afterward, the dorsal-extension decreased 3.2° ± 0.3 SE, (P < 0.01). Dislocation decreased hip flexion during all phases (P < 0.01). Maximal difference: 7.5° ± 0.5 SE during mid-stance. 80% of all patients developed this gait pattern. Inter...Continue Reading

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Citations

Mar 5, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Elias AmmannCarlo Camathias
Jun 10, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Zijie XuAiguo Zhou
Oct 30, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Patricia M LutzMatthias J Feucht

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