[Intertrochanteric osteotomy of the hip. Retrospective (10-18 years) clinical and radiologic study of 30 interventions]. / Osteotomia intertrocanterica dell'anca. Revisione clinica e radiologica a distanza (10-18 anni) di 30 interventi.

The authors report on 28 patients with degenerative arthritis of the hip who underwent intertrochanteric osteotomy of the femur between 1970 and 1978. Two subjects were operated on bilaterally, bringing the total number of hips to 30. The follow-up period averaged 11.8 years. All patients underwent thorough clinical and radiographic examination as well as basography and computed electrogoniometry. The basographic examination consists of analysis of the temporal phases of gait, revealing angular abnormalities of the various joint components of the lower limbs which occur during walking. Processing the data by computer shows any anomaly present in the lower limbs. The results of treatment were good for the most part, and thorough functional examination by computer often revealed a poor radiographic result corresponding to a better clinical result.

Electrical stimulation of human femoral intertrochanteric osteotomies. Double-blind study.

Low-frequency pulsing electromagnetic fields (PEMF) are being used in nonunion healing at several centers around the world. Much debate exists about quantification of PEMF effects, especially in humans where no randomized studies have been performed. The results of a double-blind treatment of 32 consecutive patients treated with femoral intertrochanteric osteotomy for hip degenerative arthritis are reported. Roentgenographic evaluation and callus density measurements performed with an image analyzer showed a statistically significant difference between controls and stimulated patients (p less than 0.01). In this extremely homogeneous patient population, PEMF stimulation favored osteotomy healing.