Resumen

LOPREITE, Fernando; GARABANO, Germán; PESCIALLO, César  y  DEL SEL, Hernán. Artroplastia de cadera luego de una osteosíntesis fallida en fracturas laterales de cadera. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2018, vol.83, n.1, pp.12-19. ISSN 1852-7434.

Introduction: The purpose of this retrospective study was to assess the clinical and radiological outcomes, complications, and technical problems of total hip arthroplasty following failure of dynamic screw fixation of the intertrochanteric fractures. Methods: Thirty-eight total hip arthroplasties in 38 patients were reviewed (31 women and 7 men, with a mean age of 75.5 9 years [range 67-90]), with a follow-up of 45.5 months (range 16-128). Thirty were total hip arthroplasties, 7 bipolar hip arthroplasties and an unconventional prosthesis. Nine large femoral stems and 29 standard stems were used. The presence of pain was clinically evaluated, and the Harris hip score was objectively used. Quality of cementation (Barrack), prosthetic demarcations, loosening, pseudoarthrosis of the greater trochanter and its complications were analyzed in X-rays. Results: Average Harris Hip Score was 79 points (range 70-88). Thirty of 35 cemented femoral stems were type A (Barrack), 4 type B and one type C. There were no revisions. Four cemented cotyles had a demarcation line in zone I, one, in zones II and III; and the other in the three zones. There were 5 nonunion of greater trochanter, 3 acute infections with favorable outcome after toilette and antibiotics. Three patients suffered dislocations, one of them needed revision. Conclusions: Total hip arthroplasty as salvage procedure after failed dynamic screw fixation achieves acceptable functional results and allows ambulation. This procedure is technically challenging with a high complication rate.

Palabras clave : Intertrochanteric fracture; DHS; Failed internal fixation; Total hip arthroplasty.

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