Over the last several years, triple pelvic osteotomy has become our preferred method for surgical containment in Perthes disease. Since 1995, seventeen patients with Perthes disease have been treated with triple pelvic oste-otomy at our institution. Fourteen of seventeen patients (82%) had a good or excellent clinical result at latest follow-up. According to Sundt’s criteria, radiographic outcome was rated as good in fourteen patients (82%), fair in one patient and poor in two patients. Experience with the technical aspects of the procedure is necessary to avoid pseudarthrosis and iatrogenic external rotation of the acetabular fragment.

To evaluate the efficacy of triple pelvic osteotomy as a method of surgical containment in Perthes disease.

Recent trends point to surgery as the method of choice for containment in older children with Perthes disease. Over the last several years, triple pelvic osteotomy has become our preferred method for surgical containment in Perthes disease.

Since 1995, seventeen patients (seventeen hips) with Perthes disease classified as either lateral pillar B or C have been treated with triple pelvic osteotomy at our institution. The average age at surgery was 8.5 years with an average follow-up of 4.3 years. Outcome was assessed using clinical as well as multiple radiographic criteria.

Fourteen of seventeen patients (82%) had a good or excellent clinical result at latest follow-up. No patients had a residual limp or limb length inequality. Two patients had a minor postoperative complication (transient peroneal nerve palsy, meralgia paresthetica). According to Sundt’s criteria, radiographic outcome was rated as good in fourteen patients (82%), fair in one patient and poor in two patients.

Triple pelvic osteotomy minimizes potential complications associated with other surgical methods such as Trendelenberg gait and shortening with proximal femoral osteotomy or hinge abduction following a Salter innominate osteotomy. Experience with the technical aspects of the procedure is necessary to avoid pseudarthrosis and iatrogenic external rotation of the acetabular fragment.

Triple pelvic osteotomy is now our procedure of choice for containment in the older child with Perthes disease.

Introduction: Acute traumatic separation of the greater trochanter is a rare childhood injury with associated morbidity. Although the risk for femoral head avascular necrosis and morbidity following femoral neck fractures in childhood is well understood, the risk to femoral head blood supply in the much less common greater trochan-teric fracture is not widely known.

Materials and Methods: Three adolescents with greater trochanteric fracture were evaluated and treated. The first, a complete separation incurred in football, was fixed by open surgery using two large A-O screws plus washers. The patient developed severe avascular necrosis requiring further treatment including bone grafting of the femoral head plus shelf acetabuloplasty. The prognosis is guarded. A second patient had a similar injury following a fall from a ladder. Because of our experience with the prior case, she was treated with a careful, minimal open reduction with greater trochanter reat-tachment using a tension band technique. Follow-up has shown a normal femoral head. A third patient presented with progressive pain in the greater trochanter in sporting activities with early separation documented by radiograph. This picture was similar to slipped capital femoral epiphysis. Treatment was by emergent in-situ screw fixation. The hip has developed normally.

Discussion: The growth centers of the femoral head and greater trochanter are conjoined at birth with a similar blood supply The blood supply to the femoral head and neck as well as to the greater trochanter have been carefully studied but with little attention paid to the effect that greater trochanteric fracture might have on femoral head blood supply. The ascending branches of the medial femoral circumflex, which supply the blood to the femoral head via their course to the posterior femoral neck, can readily be injured with traumatic avulsion of the greater trochanter. Femoral head avascular necrosis can result from the fracture itself and/or to the methods of re-attachment.

Recognizing the risk , patients with this injury should be treated with a gentle open reduction with a minimal added trauma from reduction methods or fixation. K-wires and a tension band technique may be the best choice. The child should then be immobilized in a hip spica cast to allow full healing, rather than relying on large internal fixation devices in an attempt to avoid cast immobilization. Adolescents with this injury must be followed for two years to be certain that avascular necrosis does not develop.

Of 193 children with Perthes' disease at the Texas Scottish Rite Hospital for Cripppled Children, 24 were found to have only minimal changes. The cases were grouped relative to the area of the femoral head involved, with 10 involving the anterior portion, seven the posteromedial, three the lateral, and four the central portion. Almost all hips lost some height as measured by the epiphysial index but all had good results by the Mose criteria irrespective of treatment. The anterior lesion is the same as that described by Catterall as Group 1. The three additional groups have a similar benign natural history but distinct radiographic features. The need for early recognition of these patterns is emphasised if unnecessary treatment is to be avoided. Possible correlations of these lesions with the segmental blood supply of the femoral head are proposed and an hypothesis relating the Catterall classifications to the blood supply is put forward.