Este artículo es originalmente publicado en:
Halai M1, Gupta S1, Gilmour A1, Bharadwaj R1, Khan A1, Holt G1.
Bone Joint J. 2015 Feb;97-B(2):154-9. doi: 10.1302/0301-620X.97B2.34530.
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Copyright © 2015 THE BRITISH EDITORIAL SOCIETY OF BONE & JOINT SURGERY All Rights Reserved.
We evaluated an operative technique, described by the Exeter Hip Unit, to assist accurate introduction of the femoral component. We assessed whether it led to a reduction in the rate of leg-length discrepancy after total hip arthroplasty (THA). A total of 100 patients undergoing THA were studied retrospectively; 50 were undertaken using the test method and 50 using conventional methods as a control group. The groups were matched with respect to patient demographics and the grade of surgeon. Three observers measured the depth of placement of the femoral component on post-operative radiographs and measured the length of the legs. There was a strong correlation between the depth of insertion of the femoral component and the templated depth in the test group (R = 0.92), suggesting accuracy of the technique. The mean leg-length discrepancy was 5.1 mm (0.6 to 21.4) pre-operatively and 1.3 mm (0.2 to 9.3) post-operatively. There was no difference between Consultants and Registrars as primary surgeons. Agreement between the templated and post-operative depth of insertion was associated with reduced post-operative leg-length discrepancy. The intra-class coefficient was R ≥ 0.88 for all measurements, indicating high observer agreement. The post-operative leg-length discrepancy was significantly lower in the test group (1.3 mm) compared with the control group (6.3 mm, p < 0.001). The Exeter technique is reproducible and leads to a lower incidence of leg-length discrepancy after THA. Cite this article: Bone Joint J 2015;97-B:154-9.
Se evaluó una técnica operatoria, descrito por la Unidad de Hip Exeter, para ayudar a la introducción precisa del componente femoral. Se evaluó si se produjo una reducción en la tasa de
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