Quadricepsplasty in arthrogryposis (amyoplasia): Long-term follow-up

Orthopaedic Department, Santa Casa Medical School and Hospitals, Pavilhão 'Fernandinho Simonsen', São Paulo, Brazil.
Journal of Pediatric Orthopaedics B (Impact Factor: 0.59). 06/2005; 14(3):219-24. DOI: 10.1097/01202412-200505000-00015
Source: PubMed


Eight patients with arthrogryposis multiplex congenita (amyoplasia type) (11 knees) with knee hyperextension deformity underwent quadricepsplasty and were analyzed during an average follow-up period of 11 years and 2 months. The results were clinically analyzed based on gait pattern, range of movement, and orthotic requirements. Joint congruency was evaluated by radiography according to the Leveuf Pais classification. A satisfactory result was the correction of the deformity, articular congruency, sufficient range of movement, adequate gait pattern and no need for orthosis. A satisfactory outcome occurred in five of the eight patients (eight knees). We considered an unsatisfactory result when any of these conditions occurred. Our experience demonstrated that the quadricepsplasty corrected the hyperextension deformity of the knee joint, improved function, gait pattern, and maintained the muscle power of the quadriceps.

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