[The prognostic significance of clinical and radiological parameters for the revalgisation of the femoral neck following intertrochanteric derotation varization osteotomy].
This study investigates retrospectively the preoperative findings and postoperative courses of 580 children with altogether 1001 intertrochanteric osteotomies. The evaluation of on average 5 postoperative years determines criteria assisting the revalgisation of the femoral neck. Of main importance is the age at the date of operation; the younger the child is the higher is the degree of revalgisation. An also important factor is the preoperative CCD-angle, high values correlate with a high revalgisation rate. Exceptional features and alterations of femoral head, form and depth of the hip-socket also assist the revalgisation of femoral neck. Mechanical mistakes, little varization, low medialization of distal femoral fragment e.g., lead to an increase of postoperative CCD-angle; meanwhile damage of the apophyseal or epiphysial line does not affect the revalgisation.
Loew
M
M
Stiftung Orthopädische Universitätsklinik, Heidelberg.
Niethard
F U
FU
Schneider
E
E
D002648:Child; D002675:Child, Preschool; D005260:Female; D005272:Femur Neck / Q000601:surgery*; D006618:Hip Dislocation, Congenital / Q000601:surgery*; D006801:Humans; D007223:Infant; D008297:Male; D010027:Osteotomy / Q000379:methods*; D011183:Postoperative Complications / Q000209:etiology; D012086:Reoperation; D012189:Retrospective Studies
Die prognostische Bedeutung klinischer und radiologischer Parameter für die Revalgisierung des Schenkelhalses nach intertrochanterer Derotations-Varisierungsosteotomie.