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Early dislocation in primary total hip arthroplasty using a posterior approach with repair of capsule and external

A Hernández¹, J H Nuñez², I Mimendia¹

¹Unidad de Cadera, Departamento de Cirugía Ortopédica y Traumatología, Hospital Universitario Vall d'Hebron, Barcelona, España.

Revista Espanola De Cirugia Ortopedica Y Traumatologia (English Ed.)

|May 20, 2018

Abstract

Objective:

To determine the incidence of dislocation after primary total hip arthroplasty using a posterior approach with repair of capsule and transosseous external rotators.

Material And Method:

Historical cohort study between January 2009 and December 2015 of all the cases of dislocation of primary total hip arthroplasty operated using a posterior approach with repair of capsule and transosseous external rotators. Demographic and clinical data concerning the patient, surgery and dislocation were collected and analyzed. A descriptive analysis and a study of survival and risk function were performed by Kaplan Meier's method considering the appearance of a hip dislocation as the final event.

Results:

The incidence of dislocation in our study was 1.2% (23 patients). In our study, the highest probability of dislocation occurred in the first 120 days. Forty-three point 5percent of the dislocated patients needed revision surgery.

Conclusions:

Capsular repair and transosseous reattachment of the external rotators can help to reduce the incidence of dislocation in patients undergoing primary total hip arthroplasty through a posterior approach.

Keywords:

Abordaje posterior de cadera Artroplastia total de cadera Capsular repair Dislocation Luxación Posterior hip approach Reattachment of rotators Reinserción de rotadores Reparación capsular Total hip arthroplasty

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