[Importance of the back muscles in rehabilitation of postoperative segmental lumbar instability--a biomechanical analysis].
In the present study, a biomechanical in-vitro experimental design for assessing lumbar instability following discectomy had been complemented by computer simulation of the muscular influence. The most impressive changes of the instability parameters chosen, i.e., mobility (flexibility) and neutral zone, occurred in respect of the study movement directions Ty, Tz and Mx (lumbar disc height, anterior/posterior dislocation, and flexion/extension). The influence of the multifidus muscle had enabled the flexion/extension neutral zone changes to be offset. Flexibility (+/- Rx) was found to have been influenced to a minor degree.
Orthopädische Universitätsklinik, St. Josef-Hospital, Ruhr-Universität Bochum.
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Steffen
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Nolte
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Pingel
D000328:Adult; D001696:Biomechanical Phenomena; D003198:Computer Simulation; D017586:Diskectomy; D005260:Female; D006801:Humans; D007403:Intervertebral Disc / Q000503:physiopathology / Q000601:surgery; D007593:Joint Instability / Q000503:physiopathology*; D008159:Lumbar Vertebrae / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000503:physiopathology*; D016059:Range of Motion, Articular / Q000502:physiology
Stellenwert der Rückenmuskulatur in der Rehabilitation der postoperativen segmentalen lumbalen Instabilität--Eine biomechanische Analyse.