Doron Norman

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The reparative processes following vascular deprivation-induced necrosis of the femoral head were studied histologically in rats sacrificed 2, 7, 14, 21, 42 and 92 days postoperatively. The blood supply was severed by incision of the periosteum at the neck of the femoral head and transection of the ligamentum teres. Granulation tissue and a(More)
The healing of vascular deprivation-induced necrosis of the femoral head of rats exposed to hyperbaric oxygen was compared with that in untreated rats. The amount of necrotic bone, extent of osteoneogenesis, degree of remodeling, and changes of the articular cartilage were histologically graded on a semiquantitative scale of 0 to 3+. On the 2nd, 7th, and(More)
The blood supply of rats' femoral heads was severed by cutting the ligamentum teres and stripping the periostium. Histologically, necrosis of the marrow was apparent on the 2nd postoperative day, necrosis of the bone on the 5th postoperative day and fibrous ingrowth on the 7th postoperative day. During the following 5 weeks, progressive resorption of the(More)
OBJECTIVE The aim of the present study was to isolate the unique contribution of physical injury to the subsequent development of posttraumatic stress disorder (PTSD). METHOD Participants were 60 injured soldiers and a comparison group of 40 soldiers (matched by rank, military role, and length of service) who took part in the same combat situations but(More)
A clinically unstable hip in a new-born may be an early sign of congenital dysplasia. Unless followed and treated at a young age, it can progress to a degenerative hip joint disorder with considerable functional disability in adult life. For this reason, the early diagnosis of neonatal hip instability is crucial. We present our experience with 9199 neonates(More)
The blood supply of one femoral head of 6-month-old rats was severed by incising the periosteum of the neck and cutting the ligamentum teres. The rats were killed on the 30th postoperative day and the femoral bones were obtained for semiquantification of the reparative processes in the necrotic heads. Fourteen rats were treated with enoxaparin and 14(More)
An impeded blood flow through the femoral head is incriminated in the etiopathogenesis of osteonecrosis of the femoral head. The disorder is either primary (idiopathic avascular osteonecrosis) or secondary to one condition or another, say, corticosteroid medication, fracture of the neck, coagulation defects, physical or thermal damage, storage disorders,(More)
The expedited revascularization of the rats' avascular, necrotic femoral heads suggests the operation of angiogenic factor(s). The blood circulation of the epiphysis was interrupted by cutting the cervical periosteum and the ligamentum teres of rats' femoral heads. Three days postoperatively, the marrow was necrotic. Seven days postoperatively, the(More)
BACKGROUND Proximal hip fractures in the elderly are common and place a heavy burden on health resources. Researching the timing of these fractures could contribute to diverting resources towards peaks in incidence and investing in prevention at certain times. OBJECTIVES To examine the effect of seasonality, weather and Jewish holidays on hip fracture(More)
The purpose of the current study was to evaluate the long-term functional outcome as measured by gait patterns and quality of life assessment of patients with high-energy tibial plateau fracture compared to matched controls. Thirty-eight patients were evaluated in a case-controlled comparison. Twenty-two patients with tibial plateau fracture were evaluated(More)