Percutaneous screw fixation without bone graft for XXXX .

@entity1 @entity3808 @entity174
BACKGROUND: The most controversial problem in treating @entity174 is whether bone grafts are necessary for @entity174 . METHODS: We treated 105 @entity174 using Herbert screws (1988-1997), AO 3.0 mm cannulated screws (1998-2002), and Acutrak screws (2003-2006). The @entity1 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 @entity3808 or displaced type (30 cases). Linear and cystic types did not have any displacement more than 2 mm. If the @entity174 line had a @entity3808 zone thicker than 1 mm, it was classified as @entity3808 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 @entity3808 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 @entity3808 or displaced type. CONCLUSIONS: Screw fixation without bone graft using Acutrak screws was a reliable strategy for the treatment of @entity174 .
