期刊
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
卷 15, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13018-020-01763-x
关键词
Lesser trochanter fracture; Morphologic Analysis; Telescoping; Neck-shaft angle; CT 3D reconstruction
类别
资金
- Youth Science and technology Project of Pudong Health Bureau of Shanghai [PW2017B-15]
- Key Disciplines Group Construction Project of Pudong Health Bureau of Shanghai [PWZxq2017-11]
Background This study investigated the effects of posteromedial fracture fragments on the postoperative stability of intertrochanteric fractures of the femur by analyzing the quantity and range of fragments in CT 3D reconstruction. Materials and methods Patients diagnosed with femoral lesser trochanter fractures were collected from September 2015 to February 2018. CT 3D reconstruction was applied to evaluate the quantity and extension of posteromedial fragments and the presence of isolated medial fragments. The stability of postoperative fracture was evaluated by comparing the changes of neck-shaft angle and telescoping from 1 week to 1 year after operation. Results A total of 143 patients were finally confirmed, in which 63 patients contained isolated fragments on the medial side, and the average number of fragments in the posteromedial side was 1.93 +/- 0.34, which accounted for an average of about 86.11% +/- 8.20% in the whole posteromedial wall. When the number of posteromedial fragments was > 2 and the range of posteromedial fragments was > 75%, then the changes in the neck-shaft angle and telescoping showed statistical significance (12.27 +/- 4.18 mm and 10.13 +/- 6.17 degrees, respectively), and when there were isolated medial isolated fragments, then the change in the neck-shaft angle was 10.66 +/- 4.27 degrees, showing statistical significance. Conclusions These findings revealed a certain correlation between the quantity and the range of posteromedial fragments and the postoperative shortening and collapse of femoral intertrochanteric fractures.
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