Operation of upwards shift of the insertion of gluteus maximus and release of gluteus medius treatment for severe gluteus maximus contracture

Objective To investigate the clinical value of operation of upwards shift of the insertion of gluteus maximus and release of gluteus medius treatment for severe gluteus maximus contracture.Methods Thirty eigtht patients were diagnosed as severe gluteus maximus contracture treated in our hospital between 2004 and 2007.All patients had undertaken operation of upwards shift of the insertion of gluteus maximus and release of gluteus medius.Results Thirty six patients were followed up from 12-36 months(mean,29 months).All patients were satisfied with their postoperative improvements.35(97.2%) patients were free from kyphosis and pelvic retroversion;31(86.1%) patients almost recovered to normal gait;4(11.1%) patients remained mild swinging gait;1(2.8%) patient still crippled.Comparing with preoperative condition,the hip flexion was improved with an average 94°,when patients were on hip abduction 90°,hip abduction was improved with an average 75°.3(8.3%) patients had unilateral abduction weakness.1(2.8%) patients had bilateral abduction weakness.Conclusion Operation of upwards shift of the nsertion of gluteus maximus and release of gluteus medius may gain satisfactory effects for patient with severe gluteus maximus contracture.