Mechanisms of improved knee flexion after rectus femoris transfer surgery
نویسندگان
چکیده
منابع مشابه
Mechanisms of improved knee flexion after rectus femoris transfer surgery.
Rectus femoris transfer is frequently performed to treat stiff-knee gait in subjects with cerebral palsy. In this surgery, the distal tendon is released from the patella and re-attached to one of several sites, such as the sartorius or the iliotibial band. Surgical outcomes vary, and the mechanisms by which the surgery improves knee motion are unclear. The purpose of this study was to clarify t...
متن کاملMechanism of Improved Knee Flexion After Rectus Femoris Transfer Surgery
Simulation results suggest that the primary mechanism for improvement in knee flexion after surgery is reduction of the muscle’s knee extension moment, rather than conversion to a knee flexion moment. Scarred transfer simulations resulted in an average peak knee flexion improvement (14° ± 5°) comparable to the average increase in knee flexion range of motion (13° ± 11°) in the subjects’ postope...
متن کاملPredicting outcomes of rectus femoris transfer surgery.
Rectus femoris transfer surgery is a common treatment for stiff knee gait in children with cerebral palsy. Unfortunately, the improvement in knee motion after surgery is inconsistent. There is great interest in understanding the causes of stiff knee gait and determining predictors of improved knee motion after surgery. This study demonstrates that it is possible to predict whether or not a pati...
متن کاملThree-dimensional muscle-tendon geometry after rectus femoris tendon transfer.
BACKGROUND Rectus femoris tendon transfer is performed in patients with cerebral palsy to improve knee flexion during walking. This procedure involves detachment of the muscle from its insertion into the quadriceps tendon and reattachment to one of the knee flexor muscles. The purpose of the present study was to evaluate the muscle-tendon geometry and to assess the formation of scar tissue betw...
متن کاملThree-Dimensional Muscle-Tendon Geometry after Rectus Femoris Transfer
Introduction Rectus femoris transfer surgery is performed to improve knee flexion in persons with cerebral palsy who walk with a stiff-knee gait (Gage et al., 1987; Perry, 1987). In this surgery, the rectus femoris muscle is separated from the quadriceps tendon, tunneled through the subcutaneous tissue on the medial aspect of the thigh and sutured to one of the knee flexors – such as sartorius ...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 2009
ISSN: 0021-9290
DOI: 10.1016/j.jbiomech.2008.12.007