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  • Title: Comparable dislocation and revision rates for patients undergoing total hip arthroplasty with subsequent or prior lumbar spinal fusion: a meta-analysis and systematic review.
    Author: Onggo JR, Nambiar M, Onggo JD, Phan K, Ambikaipalan A, Babazadeh S, Hau R.
    Journal: Eur Spine J; 2021 Jan; 30(1):63-70. PubMed ID: 33104880.
    Abstract:
    BACKGROUND: There is a known correlation between the procedures of lumbar spinal fusion (LSF), total hip arthroplasty (THA) and the complication of hip dislocation and revision occurring in patients. However there is no consensus as to whether the risk of this complication is higher if THA is performed before or after LSF. This meta-analysis aims to determine the influence of surgical sequence of lumbar spinal fusion and total hip arthroplasty on the rates of hip dislocation and revisions. METHODS: A meta-analysis was conducted with a multi-database search (PubMed, OVID, EMBASE, Medline) according to PRISMA guidelines on 27th May 2020. Data from all published literature meeting inclusion criteria were extracted and analyzed with an inverse variance statistical model. FINDINGS: A total of 25,558 subsequent LSF and 43,880 prior LSF THA patients were included in this study. There was no statistically significant difference in all-cause revisions (OR = 0.86, 95%CI: 0.48-1.54, p = 0.61), dislocation (OR = 0.82, 95%CI: 0.25-2.72, p = 0.75) or aseptic loosening (OR = 1.14, 95%CI: 0.94-1.38, p = 0.17) when comparing patients receiving LSF subsequent versus prior to THA. CONCLUSION: Lumbar spinal fusion remains a risk factor for dislocation and revision of total hip arthroplasties regardless of whether it is performed prior to or after THA. Further preoperative assessment and altered surgical technique may be required in patients having THA who have previously undergone or are likely to undergo LSF in the future. EVIDENCE LEVEL: Level II, Meta-analysis of homogeneous studies.
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