No abstract available.
Animals ; Macrophages, Alveolar* ; Rats* ; Superoxides* ; Verapamil*

This study includes 19 cases of complicated low extremity injury to whom underwent microvascular free-tissue transfer in cases of open comminuted fracture, osteomyelitis, and vascular compromise or extensive soft tissue defect from Nov. 1994 to July 1997. The average time after injury to coverage was 25 days. The nineteen patients underwent a total of nineteen free tissue transfers primarily, and eighteen (94.7 per cent) of the transfers survived. Major complications were encountered recurrent failure of the free tissue transfer in one patient and partial necrosis in the other flap, which were successfully treated by flow-through radial forearm free flap and distally based superficial sural artery flap respectively. Two patients were sustained below knee amputation, one above knee amputation, despite of survival of flaps. This reveals limb salvage in 84 percent. The microvascular reconstruction is a versatile and reliable methods in complicated cases after severe trauma. Free tissue transplantation should be considered as a primary treatment in such complicated cases.
Amputation ; Arteries ; Extremities ; Forearm ; Fractures, Comminuted ; Free Tissue Flaps ; Humans ; Knee ; Limb Salvage ; Lower Extremity* ; Necrosis ; Osteomyelitis ; Tissue Transplantation ; Transplants

The aseptic loosening has emerged as one of the most common and serious long term complications, which requires the revision of total hip replacement arthroplasty. We studied the radiologic finding of the aseptic loosening in 79 patients of uncemented total hip replacement arthroplasty which had been performed in our hospital from March 1991 to December 1994. We evaluated the white reaction lines, osteolysis state, translation and migration in postoperative and last follow-up radiographies. The white reactive lines around the femoral stem and the acetabular cup were most frequent in zone IV and zone II. But it was not progressive and need more long term follow-up evaluations to confirm whether these lines are related to loosening or not. In assessment for stable state, the more stable at initial fixations, the better state of long term stability. Some patients have pain without loosening but all patients with loosening have pain. Press fit is the most important factor of the late stability. The osteolysis is not directly proportional to femoral loosening in this study, but it might be due to short follow up time.
Acetabulum ; Arthroplasty* ; Arthroplasty, Replacement, Hip* ; Follow-Up Studies ; Hip ; Humans ; Osteolysis

No abstract available.
Acetabulum*

No abstract available.
Ankle Fractures* ; Ankle*

The incidence of herniated lumbar disc under the age of 19 years is increasing due to increased sports activity of teenager and development of diagnostic methods. 33 cases of herniated lumbar disc of the teenager was analyzed at Department of Orthopaedic Surgery, Dong-A College of Medicine from March 1990 to May 1994. The results were obtained as follows: 1) Among 413 patients, 33 patients(7.9%) were teenagers and the sex ratio was 2.3:1 in male to female. 2) Average intervals between the onset of clinical symptoms and the admission were 13.2 months. 3) 20 cases(60.6%) had a definite trauma history, and among these cases, 14 cases(70.0%) were associated with sports activity. 4) The most common level of herniation was L4-5 in 29 cases(64.4%), straight leg raising test was positive in 32 cases(97.0%), sensory change in 13 cases(39.4%), motor weakness in 10 cases(30.3%). 5) Among positive MRI findings(32 cases), 17 cases(53.1%) were the protruded type. 6) Among 23 operative cases, 21 cases had excellent or good results.
Adolescent ; Female ; Humans ; Incidence ; Intervertebral Disc ; Leg ; Magnetic Resonance Imaging ; Male ; Sex Ratio ; Spine ; Sports

Among the 413 patients of the lumbar herniated nucleus pulposus(HNP) who were admitted and treated at Dong-A University Hospital from March 1990 to May 1994, we analyzed 387 patients who checked magnetic resonance imaging(MRI). MRI study followed by open disectomy was carried out on 127 patients of the lumbar HNP, and we analyzed the clinical and operative findings of the lumbar HNP and compared these with MRI findings. The following results were obtained. 1. MRI findings of 387 patients consisted of bulging discs in 107 cases(27.6%), protruded discs in 165 cases(42.6%), extruded subligamentous discs in 73 cases(18.9%), extruded transligamentous discs in 34 cases(8.8%) and sequestered discs in 8 cases(2.1%). 2. MRI findings of 127 patients who had been treated with open discectomy consisted of protruded discs in 53 cases(41.7%), extruded subligamentous discs in 47 cases(37.0%), extruded transligamentous discs in 19 cases(15.0%) and sequestered discs in 8 cases(6.3%). 3. Operative findings revealed the protruded discs: 49 cases(38.6%), extruded subligamentous discs: 52 cases(40.9%), extruded transligamentous discs: 18 cases(14.2%) and sequestered discs: 8 cases(6.3%). 4. In sequestered disc, we could get the highest sensitivity, specificity and accuracy with MRI in distinguishing from another type of lumbar HNP. MRI can be available for accurate assessment of type and location of the lumbar HNP and it can show the high specificity, sensitivity and accuracy in preoperative diagnostic method.
Diskectomy ; Humans ; Magnetic Resonance Imaging ; Methods ; Sensitivity and Specificity

No abstract available.
Child* ; Humans ; Learning Disorders* ; Learning*

No abstract available.
Humans

No abstract available.
Cartilage* ; Ear*