Results of Transtrochanteric Anterior Rotational Osteotomy Using F-system

Autor: Yuji Doi, Nobuhiro Kaku, Tsutana Fukunaga, Tomoyuki Sawatari, Hiroshi Tsumura
Rok vydání: 2000
Předmět:
Zdroj: Orthopedics & Traumatology. 49:345-349
ISSN: 1349-4333
0037-1033
DOI: 10.5035/nishiseisai.49.345
Popis: We evaluated the clinical results of transtrochanteric rotational osteotomy using the F-system as an internal fixation device. Group I with F-system fixation consisted of six hips in six patients. In this group, the average age at operation was thirty years old and the average post-operative follow-up period was twenty-five months.The clinical results of group I were compared with that of the control group (group II) using other screws. Bone-nonunion was observed in three hips of group II, and the neck-shaft angle in group II decreased 3.5 degrees on the average in plain roentgenograms one year after the operation. On the other hand, there was no bone-nonunion and the progression of varus deformity was only 1.5 degrees in group I. The mechanical strength of the F-system was found to be superior to other devices in compression tests. The difference in the time and blood loss during operations between the two groups was insignificant.Fracture of the proximal femur occurred intraoperatively in two hips of group I. The F-system is useful, but the operative technique and the design of the device require certain improvements.
Databáze: OpenAIRE