Treatment of Transverse Patellar Fracture with Cannulated Screws

PURPOSE: To assess the indication and effect of screw fixation in the transverse patellar fractures. MATERIALS AND METHODS: We analysed the results of 14 transverse patellar fractures fixed with screws from January 1991 to May 2005. Mean follow-up period was 47 months (range, 12~143 months). We analysed the radiologic union, operation time, ROM and postoperative Lysholm score. RESULTS: All fractures healed uneventfully. The mean displacement was decreased from 2.2 mm preoperatively to 0.3 mm postoperatively (p=0.001, Wilcoxon signed rank test). The mean operation time was 34 minutes (range, 20 to 60 minutes). Normal range of motion was achieved in 13 knees (92.9%). Average Lysholm score was 95.9 at final follow-up. CONCLUSION: Screw fixation seemed to be useful for treatment of transverse patellar fracture even in comminuted fractures with large fragments. The advantage of this technique was the preservation of extensor mechanism, simplicity, short operation time and good cosmesis.

A Baker's Cyst Causing Common Peroneal Nerve and Tibial Nerve Entrapment Neuropathy : A Case Report / 대한정형외과학회잡지

Degenerative disc disease of the lumbar spine caused leg pain with associated calf weakness and atrophy. However, an unusual case of leg pain and calf atrophy due to neural compression is reported. We reported a rare case of a Baker's cyst causing common peroneal nerve and tibial nerve entrapment neuropathy. Initially, after arthroscopic menisectomy and cyst decompression, Baker's cyst was recurred and then open excision was done. Until 1 year after surgery, the cyst was not recurred, increased muscle bulk was noted and EMG showed improved findings. But she continued to complain of lower leg weakness and sole paresthesia owing to delayed diagnosis and cyst decompression.

Lower Limb Position in Oxford Unicompartmental Knee Arthroplasty

PURPOSE: To compare the accuracy of tibial cutting between in dangling position and standing position of the lower limb for Oxford unicompartmental knee arthroplasty. MATERIALS AND METHODS: From September 2001 to September 2003, While performing Oxford unicompartmental knee arthroplasty, we cut tibial plateau with lower extremity in dangling position and standing position alternately. Group 1 consisted of 12 cases underwent tibial cutting in dangling position. Group 2 consisted of 12 cases underwent tibial cutting in standing position. Clinical assessments consisted of radiologic evaluation and HSS knee score. RESULTS: There were no significant differences in limb alignments and HSS knee scores between group 1 and group 2 at one year postoperatively. In anteroposterior radiographs, the mean alignment of tibial component of group 1 was measured 4.07+/-5.7 degrees varus to the tibial axis and that of group 2 was measured 2.34+/-2.4 degrees varus to the tibial axis(P=0.35). CONCLUSION: In Oxford unicompartmental knee arthroplasty, tibial cutting in standing position showed a tendency to cut tibia more perpendicular to the tibial axis. But it was statistically not significant.