Effects of periarticular steroid injection on knee function and the inflammatory response following unicondylar knee arthroplasty

  • Yung Chuan Sean Ng
  • Ngai Nung Lo
  • Kuang Ying Yang
  • Shi Lu Chia
  • Hwei Chi Chong
  • Seng Jin Yeo


There is little information on the values of CRP and ESR as markers for inflammation in Unicondylar Knee Arthroplasty. The effect of periarticular steroid injection in post-operative pain relief and clinical recovery has not been well studied. Eighty-three consecutive patients undergoing primary UKAs were randomized to receive either an intra-operative periarticular injection with a local anaesthetic and adrenaline or with the addition of triamcinolone acetonide. CRP and ESR values, pain VAS and other scores, as well as clinical functional parameters, were obtained and analysed. Patients were assessed daily till discharge and up to 6 months post-operatively. Plasma CRP and ESR fluctuate after a UKA, with normalizing values indicating uneventful recovery. Periarticular steroid injections reduce post-operative pain and inflammation, and are clinically relevant as they improve short-term functional recovery and clinical parameters, resulting in better outcomes for patients without having major complications.


Unicondylar knee arthroplasty Corticosteroids Functional outcome Inflammation 


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Yung Chuan Sean Ng
    • 1
  • Ngai Nung Lo
    • 1
  • Kuang Ying Yang
    • 1
  • Shi Lu Chia
    • 1
  • Hwei Chi Chong
    • 1
  • Seng Jin Yeo
    • 1
  1. 1.Department of Orthopaedic Surgery, Block 6 Level 7Singapore General HospitalSingaporeSingapore

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