Nachum Halperin

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In this prospective randomized clinical study, the effectiveness of epidural steroids to reduce pain following lumbar disc surgery was assessed. Sixty-one patients undergoing lumbar discectomy were included. They were assigned randomly to receive, immediately after removal of the disc, either 80 mg methylprednisolone acetate (Depomedrol) or the same amount(More)
OBJECTIVES Footwear-generated biomechanical manipulations (e.g., wedge insoles) have been shown to reduce the magnitude of adduction moment about the knee. The theory behind wedged insoles is that a more laterally shifted location of the center of pressure reduces the distance between the ground reaction force and the center of the knee joint, thereby(More)
Semimembranosus tenosynovitis is a common knee problem in the over-50 age-group, occurring mainly in women. It affects the reflected portion of the tendon of the semimembranosus muscle as well as the bursa below it. The tendon becomes inflamed as a result of friction at the entrance to the bony canal (semimembranosus groove), especially if osteophytes are(More)
Partial and full thickness defects were created mechanically in articular cartilage and subchondral bone of the tibiotarsal joint condyles of 3-year-old chickens. The wounds were then repaired using embryonal chick chondrocytes embedded in a new biocompatible, hyaluronic acid-based delivery substance. Controls were similarly operated on but received either(More)
Complete paralysis of the anterior interosseous nerve was seen in 32-year-old army officer 5 weeks after he sustained a minimally displaced fracture of the proximal ulna. The fracture was immobilized in an arm cast. Thirteen weeks after injury, the cast was removed following evidence of bone union. Complete recovery of the flexor pollicis longus was noted(More)
RATIONALE AND OBJECTIVES Acute injury of the menisci and ligaments about the knee joint is often associated with accompanying bone injury. The role of bone single photon emission computed tomography (SPECT) was assessed in this clinical setting. MATERIALS AND METHODS Knee SPECT was performed in 94 patients with suspected ACL, meniscal tear, or both and(More)
Fifty-eight children with non-specific back pain lasting for at least 3 months were included in this prospective study. Not included were children with radicular pain or with abnormal findings on clinical examination, radiography, bone scan, computed tomography or magnetic resonance imaging. They were all re-examined after skeletal maturity, on average 7.6(More)
Three cases of painless root compression following disc extrusion are reported. Each patient showed the typical course of disease with the neurological deficit appearing at the same time as the sciatic pain disappeared. At operation the nucleus pulposus was found in the spinal canal. It is suggested that disappearance of the pain is related to the(More)
A rare case of posterior dislocation of the elbow joint with an avulsion fracture of the medial humeral epicondyle and fracture of the capitulum humeri is presented. Closed reduction was insufficient. Excision of the comminuted segments of the fractured capitulum was imperative to allow an optimal return of elbow function. Es handelt sich um den Bericht(More)
Thirteen cases of osteoid osteoma demonstrated with computerized tomography are reported. Twelve patients underwent definitive surgery and were relieved of their symptoms. The histological examination confirmed the preoperative diagnosis in 11 cases. Six lesions were located in the proximal femur, three in the neck of the talus, two in the proximal tibia,(More)