The authors present a case of extension loss of great toe caused by entrapment neuropathy of a peroneal nerve due to an osteochondroma of the proximal fibula. Plain radiographs revealed no bony abnormality around the foot or ankle, but a sessile exophytic bony growth at the proximal fibula. A positive Tinel sign in this area led us to a suspicion of compressive neuropathy of the peroneal nerve, and a subsequent electrophysiologic study confirmed the entrapment neuropathy. The peroneal nerve was decompressed by excisional biopsy. At 3 months postoperatively, normal full extension of the great toe was completely restored. The current case deserves attention in that the only clinical manifestation of peroneal nerve entrapment neuropathy by the osteochondroma at the fibular neck was extension loss of great toe.

Purpose:The Purpose of the study is to know patients' compliance of drug treatment of osteoporosis after operation of fracture and to compare of accompanying fractures between patients who diagnosed with osteoporosis itself and had the drug treatment of osteoporosis after surgery of periarticular fracture of hip. Materials and Methods: In experimental group, consecutive 60 patients who had fracture of femoral neck and trochanter. And in control group, 61 patients diagnosed osteoporosis with drug treatment within the same period in orthopedic department from July 2006 to July 2007. The average age is 73.8 (±6.7) year in experimental group, and 66.6 (±7.46) year in control group. Both groups had at least a year follow-up with drug treatment and had BMD again at least a year later. Results: BMD test in experimental group showed −3.05 (±1.35) preoperatively and −2.74 (±1.50) in last follow-up. BMD test in control group showed −3.55 (±0.52) in initial administration and −3.10 (±0.87) in last follow-up. The results showed a significant improvement in statistical analysis (p=0.0002, p＜0.0001). Conclusion:The compliance of drug treatment of osteoporosis after operation of periarticular fracture of hip is the same as in patients' diagnosed osteoporosis.