Impact of preoperative total knee arthroplasty on radiological and clinical outcomes of spinal fusion for concurrent knee osteoarthritis and degenerative lumbar spinal diseases

Hong Jin Kim, Jae Hyuk Yang, Dong Gune Chang, Seung Woo Suh, Hoon Jo, Sang Il Kim, Kwang Sup Song, Woojin Cho

Research output: Contribution to journalArticlepeer-review

Abstract

Concurrent knee osteoarthritis (KOA) and degenerative lumbar spinal disease (LSD) has increased, but the total knee arthroplasty (TKA) effect on degenerative LSD remains unclear. The aim of this study was to retrospectively analyze to compare radiological and clinical outcomes between spinal fusion only and preoperative TKA with spinal fusion for the patients with concurrent KOA and degenerative LSD. A total of 72 patients with concurrent KOA and degenerative LSDs who underwent spinal fusion at less than three levels were divided in two groups: non‐TKA group (n = 50) and preoperative TKA group (n = 22). Preoperative lumbar lordosis (LL) was significantly lower in the preoperative TKA group than the non‐TKA group (p < 0.05). Significantly higher preoperative pelvic incidence (PI), PI/LL mismatch, and pelvic tilt (PT) occurred in preoperative TKA group than non‐TKA group (all p < 0.05). There was significant improvement of postoperative Oswestry Disability Index and leg Visual Analog Scale in the preoperative TKA group (all p < 0.01). Preoperative TKA could be a benefit for in proper correction of sagittal spinopelvic alignment by spinal fusion. Therefore, preoperative TKA could be considered a preceding surgical option for patients with severe sagittal spinopelvic parameters in concurrent KOA and degenerative LSD.

Original languageEnglish (US)
Article number4475
JournalJournal of Clinical Medicine
Volume10
Issue number19
DOIs
StatePublished - Oct 1 2021

Keywords

  • Clinical outcome
  • Lumbar lordosis
  • Sagittal spinopelvic parameters
  • Spinal fusion
  • Total knee arthroplasty

ASJC Scopus subject areas

  • Medicine(all)

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