Does Orientation of the Femoral Head Affect Acetabular Development? An Experimental Study in Lamb.

Background: Derotational osteotomy of the proximal femur has proved to be effective in the treatment of residual acetabular dysplasia. However, the reason why this osteotomy is effective remains debatable. The purpose of this study is to investigate if an alteration of femoral head orientation affects acetabular growth.

Results of the Pavlik harness when treating Ortolani-positive hips: predictors of failure and arthrographic findings.

Background: Predictors of failure of the Pavlik harness in reducing and stabilizing an Ortolani-positive hip remain 'unclear'. The purpose of this study is to investigate the success of the Pavlik harness when treating Ortolani-positive hips, to look for predictors of failure of the harness and to analyze the arthrographic findings among these failures.

Materials And Methods: The medical records of 39 consecutive patients with an Ortolani-positive hip treated initially with a Pavlik harness were reviewed.

Selective epiphysiodesis of the triradiate cartilage for treatment of residual experimental acetabular dysplasia.

Background: The purpose of the study is to evaluate the effect of a selective epiphysiodesis of the ilioischial limb of the triradiate cartilage (TC) in an experimental dysplastic hip.

Materials And Methods: A hip dysplasia was obtained in 23 New Zealand rabbits 3 weeks old by immobilizing the knee in extension with a K-wire, in 4 groups: (1) control group; (2) K-wire maintained until sacrifice; (3) K-wire removed 1 week later without epiphysiodesis; and (4) K-wire removed 1 week later with selective epiphysiodesis of the ilioischial limb of the TC. Radiographic evaluation was performed previous to knee immobilization, after K-wire removal and after sacrifice.

Comparison of the calcaneo-cuboid-cuneiform osteotomies and the calcaneal lengthening osteotomy in the surgical treatment of symptomatic flexible flatfoot.

Background: Surgery is indicated in symptomatic flatfoot when conservative treatment fails to relieve the symptoms. Osteotomies appear to be the best choice for these painful feet. The purpose of this study was to compare the clinical and radiographic outcome of the calcaneo-cuboid-cuneiform osteotomies (triple C) and the calcaneal-lengthening osteotomy in the treatment of children with symptomatic flexible flatfoot.

Imaging on pelvic pyomyositis in children related to pathogenesis.

Purpose: Pelvic pyomyositis in children is a rare infectious condition, although it is increasingly reported in temperate climates. Often considered a primary disease, new diagnostic methods are able to identify additional foci of infection. The purpose of this study is to review our patients and to analyze the imaging studies to determine its pathogenesis.

Solitary epiphyseal enchondroma of the proximal femur in a 23-month-old girl.

Unlabelled: A 23-month-old girl was referred to us because of a right leg limp for 10 days that had not improved despite anti-inflammatory treatment and that did not show signs of infection. Upon examination, gait was in abduction and external rotation of the hip. Plain radiographs showed a solitary lucent lesion of the posteroinferior two thirds of the epiphysis that was hyperintense on T2-weighted magnetic resonance scanning images.

Failures of open reduction in developmental dislocation of the hip.

Eight patients with the same number of developmental dislocated hips were initially treated with open reduction through an anterolateral approach. The hips then became dislocated again. There were six girls, with a mean age at first open reduction of 13.

Painful spastic hip dislocation: proximal femoral resection.

The dislocated hip in a non-ambulatory child with spastic paresis tends to be a painful interference to sleep, sitting upright, and perineal care. Proximal femoral resection-interposition arthroplasty is one method of treatment for this condition. We reviewed eight hips, two bilateral cases, with a mean follow-up of 30 months.