抄録
The purpose of this retrospective study was to evaluate the clinical results of ostheosynthesis for basicervical fracture of the femur. We treated 27 patients (6 men and 21 women) with a mean age of 86 years between 2005 and 2008. We investigated the methods of fixation, operation time, tip apex distance (TAD), location of lag the screw, sliding length, dislocation of the fracture site during or after surgery and presence of lag screw cut-out.
The fixation method employed was CHS+C-CHS in 5 cases, DHS blade in 6 cases and PFNA in 16 cases. Mean operation time was 46.6 min for CHS+C-CHS, 33.5 min for DHS blade, and 28.1 min for PFNA. Mean TAD was 15.3 mm. The lag screw was located in an adequate position in 23 cases. Mean sliding length was 6 mm. Dislocation of the proximal fracture site during surgery was seen in 4 cases (all involving PFNA). Dislocation of the proximal fracture site with rotation after surgery was seen in 4 cases (including all methods of fixation). Cut-out of the lag screw did not occur in any of the cases.
PFNA is associated with dislocation of the proximal fracture site during surgery. Surgery using CHS+C-CHS took significantly longer then with the other two methods. We conclude that DHS blade is the most practical method for basicervical fracture of the femur.
