Outcomes and prognostic factors in revision hip arthroplasty for severe intra-pelvic cup protrusion: 246 cases

Orthopaedics & Traumatology, Surgery & Research : OTSR
J-A EpinetteFrench Hip and Knee Society (SFHG)

Abstract

The outcome of revision total hip arthroplasty (THA) for intra-pelvic cup protrusion is unclear. Hence, we conducted a large retrospective study to clarify the surgical strategy (hip lever arm and cup mechanical fixation) and the outcomes of reconstruction for severe intra-pelvic cup protrusion. We hypothesized that restoration of the anatomic hip centre in such acetabular revisions decreased the risk of recurrent loosening. The study included 246 THA procedures (in 220 patients), with a follow-up of 5.2 ± 4.9 years (1-24.2) after the index surgery. Bone loss was estimated using the SOFCOT classification (grade III or IV in 80% of cases) and the Paprosky classification (IIIA or IIIB in 58% of cases). Quality of the reconstruction was assessed on X-rays according to the correction of the protrusion and position of the hip centre of rotation. After a clinical follow-up of at least 5 years, with a mean of 9.9 ± 4.1 years (5-24 years), the mean Postel-Merle d'Aubigné score was 14.2 ± 3.1 and the mean Harris Hip Score was 78.0 ± 18.7. Cup protrusion was partially or completely corrected in every case and cup position was normal in 27 (11%) cases. The centre of rotation was within 10mm of the physiological position in 158 (64.2%) cas...Continue Reading

References

Mar 1, 2002·American Journal of Surgery·Christian Michael BachCornelius Wimmer
Jun 10, 2004·The Journal of Arthroplasty·Stuart GoodmanAllan Gross
Mar 5, 2011·Orthopaedics & Traumatology, Surgery & Research : OTSR·J GirardE Senneville

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Citations

Nov 24, 2016·Orthopaedics & Traumatology, Surgery & Research : OTSR·F GouinUNKNOWN Société française de chirurgie de la hanche et du genou (SFHG)
Feb 13, 2018·Archives of Orthopaedic and Trauma Surgery·Dennis KarimiJakob Klit
Jul 15, 2017·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Carl O'BrienJames A Harty

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