Literature DB >> 28029533

Unexplained Pain Post Total Knee Arthroplasty With an Oxford Knee Score ≥20 at 6 Months Predicts Good 2-Year Outcome.

Renyi Benjamin Seah1, Winston Shang Rong Lim1, Ngai Nung Lo1, Andy Khye Soo Yew1, Hwei Chi Chong1, Seng Jin Yeo1.   

Abstract

BACKGROUND: Total knee arthroplasty (TKA) is an effective procedure for end-stage osteoarthritis of the knee. Some patients experience persistent unexplained pain post-TKA despite normal investigations. The purpose of this study is to identify which of these patients are likely to improve without any surgical intervention. We hypothesize that patients with unexplained persistent pain and a poor 6-month Oxford knee score (OKS) post-TKA can improve at 2 years.
METHODS: Prospectively collected data for all primary unilateral TKA performed from June 2004 to January 2012 were analyzed to identify which patients with unexplained pain at 6 months will improve at 2 years. Patients were included if they had persistent pain and an OKS <27 at 6 months; normal radiological and clinical investigations; no infection identified; surgery performed for primary osteoarthritis. Two hundred sixty patients with OKS <27 at 6 months were analyzed. These patients were subdivided into 2 groups (group 1: 6-month OKS 20-26, group 2: 6-month OKS less than 20).
RESULTS: One hundred ninety-one out of 208 (92%) patients in group 1 experienced improvement in pain and outcome at 2 years. Most of the group 1 patients attained a minimal clinically important difference in OKS of at least 5 (P < .001) at 2 years. Group 1 patients also reported better Knee Society Functional Score and Short Form Survey 36 mean scores at 2 years.
CONCLUSION: In patients with unexplained pain, an OKS of at least 20 at 6 months predicts good functional outcome at 2 years.
Copyright © 2016 Elsevier Inc. All rights reserved.

Entities:  

Keywords:  Oxford knee score; osteoarthritis; pain; poor functional outcome; total knee arthroplasty

Mesh:

Year:  2016        PMID: 28029533     DOI: 10.1016/j.arth.2016.09.035

Source DB:  PubMed          Journal:  J Arthroplasty        ISSN: 0883-5403            Impact factor:   4.757


  2 in total

1.  Over-voluming predicted by pre-operative planning in 24% of total knee arthroplasty.

Authors:  Simon Marmor; Eric Renault; Jeremy Valluy; Mo Saffarini
Journal:  Knee Surg Sports Traumatol Arthrosc       Date:  2018-06-02       Impact factor: 4.342

2.  Arthroscopic management of unexplained pain following total knee arthroplasty.

Authors:  Michaël Butnaru; Antoine Senioris; Geert Pagenstert; Jacobus H Müller; Mo Saffarini; Franck Dujardin; Olivier Courage
Journal:  Arch Orthop Trauma Surg       Date:  2021-05-10       Impact factor: 3.067

  2 in total

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