Cementless Bipolar Hemiarthroplasty for Treating Intertrochanteric Fracture in Elderly Patients

PURPOSE: To evaluate clinicoradiological outcomes after cementless bipoloar hemiarthroplasty in elderly patients with femoral intertrochanteric fractures. MATERIALS AND METHODS: From March 2006 to February 2008, 28 patients-all in patients greater than 80 years of age, classified unstable intertrochanteric fractures in Evans classification-were followed for more than 1 year. 24 patients were women and 4 patients were men. The mean age of the patients was 84.6 years, the mean follow-up period was 16.3 months. Harris hip score, postoperative inguinal and thigh pain, Parker and Palmer mobility score were analyzed clinically. The radiological results were assessed using various radiological indicies including bone-union, fit and alignment change of femoral stem and vertical subsidence. RESULTS: The average Harris hip score was 82.9, Parker and Palmer mobility score preoperative 8.0 changed to 5.2 postoperatively. More than moderate pain was presented in 1 case. There were no cases of varus deformity or osteolysis. All stems were stable without significant alignment change or subsidence except 1 case of periprosthetic fracture. There were no dislocation, thromboembolism, death during operation or hospital days. CONCLUSION: In elderly patients, cementless bipolar hemiarthroplasty is good treatment method of unstable intertrochanteric fracture and short-term clinicoradiological outcomes proved to be satisfactory.

Comparative Evaluation of Percutaneous Endoscopic Discectomy and Microdiscectomy Using Tubular Retractor System at L4-5 Level / 대한척추외과학회지

STUDY DESIGN: A prospective, non-randomized study OBJECTIVES: To evaluate the early clinical results of percutaneous endoscopic lumbar discectomy (PELD) and microdiscectomy (MD) using a tubular retractor. SUMMARY OF THE LITERATURE REVIEW: There are few reports comparing the clinical results of different minimal invasive surgical procedures for disc herniation. MATERIALS AND METHODS: Out of 41 patients who underwent a discectomy at the L4-5 level, 16 patients (Group I) underwent PELD and 25 patients (Group II) underwent MD. The surgical techniques were based on the patient's selection. The characteristics of the operation(operation time, time for C-arm, amount of removed disc) were compared with the clinical outcomes by evaluating the SLR (straight leg raising test), leg VAS (visual analogue scale), ODI (Oswestry Disability Index), hospital day, changes in disc height. RESULTS: Group I showed a larger amount of disc removed and exposure time for the C-arm than group II (p<0.05). However, the hospital day was shorter in group I than in group II (p<0.05). There were no differences in the leg VAS, ODI, the change in disc height and surgery time between the two groups at the last follow up. One case in group I had a neuropraxia of the L5 root that had recovered fully at postoperative 3months. In group II, there was one case of a postoperative hematoma and 2 cases of a dural tear. CONCLUSION: Although the early clinical outcomes were similar in both groups, group I showed a larger amount of disc removed and more exposure time to radiation but a shorter hospital stay.