Percutaneous screw fixation without bone graft for cystic-type scaphoid fractures

金沢医療センター整形外科金沢大学医薬保健研究域医学系BACKGROUND:: The most controversial problem in treating scaphoid fractures is whether bone grafts are necessary for cystic-type fractures. METHODS:: We treated 105 scaphoid fractures using Herbert screws (1988-1997), AO 3.0 mm cannulated screws (1998-2002), and Acutrak screws (2003-2006). The patients ranged in age from 14 years to 67 years (average, 26 years). Our classifications were based on the radiographic findings: linear type (51 cases); cystic type (24 cases); and sclerotic or displaced type (30 cases). Linear and cystic types did not have any displacement more than 2 mm. If the fracture line had a sclerotic zone thicker than 1 mm, it was classified as sclerotic or displaced. The length of time before surgery did not affect the classification. Osteosynthesis was performed-without bone graft in all linear cases, with a bone graft in 7 and without a bone graft in 17 cases in cystic type, and with all bone graft in sclerotic or displaced type. RESULTS:: Bone union was achieved in all cases in linear type. There were one failure (AO) in 7 cases with bone graft and 3 failures (1 Herbert and 2 AO) in 17 cases without bone graft in cystic type. All 10 cases achieved bone union without bone graft in cystic type using Acutrak screw. There were two failure cases (2 AO) in sclerotic or displaced type. CONCLUSIONS:: Screw fixation without bone graft using Acutrak screws was a reliable strategy for the treatment of cystic-type scaphoid fractures. © 2008 by Lippincott Williams & Wilkins

Induction of Interleukin-6 in dorsal root ganglion neurons after gradual elongation of rat sciatic nerve

取得学位 : 博士（医学）, 学位授与番号 : 医博乙第1623号, 学位授与年月日 : 平成18年4月19日, 学位授与大学 : 金沢大学, 主査教授 : 西條 淸史, 副査教授 : 加藤 聖, 山田 正