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March 16, 2026BMC Musculoskeletal Disorders1 citationsOpen Access

The predictive effect of Kellgren-Lawrence grade and joint space height on pain and functional outcome

ARAnni RajamäkiLLLari LehtovirtaARAleksi Reito

Key Points

  • This research aims to determine how Kellgren-Lawrence grade and joint space height influence pain and functional outcomes after total knee arthroplasty (TKA).
  • Analyzed clinical and radiographic data from a large cohort.
  • Utilized advanced statistical methods to assess predictive relationships.
  • Evaluated outcomes post-TKA based on radiographic criteria.
  • Less severe radiographic osteoarthritis (OA) correlates with less favorable postoperative outcomes.
  • Predicted models show limited ability to forecast patient-reported outcomes post-TKA.
  • Outcomes demonstrate the multifactorial complexity of pain and function after surgery.

Abstract

In this large single-center cohort, comprehensive clinical and radiographic data were analyzed using advanced statistical methods. Our findings support previous evidence suggesting that comparatively less severe radiographic OA is associated with less favorable outcomes after TKA. However, the limited predictive capacity of the models highlights the multifactorial nature of postoperative outcomes and the challenges faced in forecasting patient-reported results following TKA.

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Cite This Study

Rajamäki et al. (2026) studied this question.

synapsesocial.com/papers/69b79df38166e15b153ab244https://doi.org/10.1186/s12891-026-09725-w
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Preoperative Radiographic Osteoarthritis Severity Modifies the Effect of Preoperative Pain on Pain/Function After Total Knee Arthroplasty2019 · 36 citations
  2. 2Questionnaire on the perceptions of patients about total knee replacement1998 · 1,027 citations
  3. 3Do Psychological Factors Predict Poor Outcome in Patients Undergoing TKA? A Systematic Review2015 · 227 citations
  4. 4Radiological Assessment of Osteo-Arthrosis1957 · 12,593 citations
  5. 5Patient Dissatisfaction Following Total Knee Arthroplasty: A Systematic Review of the Literature2017 · 854 citations