Hip-sacroiliac joint-spine syndrome in total hip arthroplasty patients.

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Abstract

[Indexed for MEDLINE] Conflict of interest statement: The authors declare no competing interests. 15. Hip Int. 2024 Mar;34(2):174-180. doi: 10.1177/11207000231197420. Epub 2023 Aug 29. Spinal fusion and total hip arthroplasty: why timing is important. Mohamed NS(1), Salib CG(2), Sax OC(2), Remily EA(2), Douglas SJ(2), Delanois RE(2). Author information: (1)Department of Orthopaedic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA. (2)Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, MD, USA. BACKGROUND: There is increasing debate among orthopaedic surgeons over the temporal relationship between lumbar spinal fusion (LSF) and total hip arthroplasty (THA) for patients with hip-spine syndrome. Few large studies have directly compared the results of patients who undergo LSF prior to THA (LSF-THA) to those who undergo LSF after THA (THA-LSF). The current study matched THA patients with a prior LSF to patients who underwent LSF after THA to assess: 90-day and 1-year (1) medical/surgical complications; and (2) revisions. METHODS: We queried a national, all-payer database to identify all patients undergoing THA between 2010 and 2018 (n = 716,084). The LSF-THA patients and THA-LSF patients were then matched 1:1 on age, sex, Charleson Comorbidity Index, and obesity. Medical/surgical complications and revisions at 90 days and 1 year were recorded. Categorical and continuous variables were analysed utilising t-tests and chi-square, respectively. RESULTS: LSF-THA patients experienced significantly more postoperative dislocations at 90 days and 1 year compared to THA-LSF patients (p = 0.048 and p