Mark A Plantz, Alain E Sherman and Kevin D Hardt
Northwestern University Feinberg School of Medicine, USA
Posters & Accepted Abstracts: J Cancer Sci Ther
Statement of the Problem: Despite recent advances in the medical management of rheumatoid arthritis (RA),
many patients will still progress to end-stage disease requiring joint replacement. Knee replacement in RA may be
complicated by recurrent synovitis, systemic inflammation and infection secondary to immunosuppression. These
complications may result in chronic pain and functional limitation.
Purpose: The purpose of this study was to examine the incidence of these unfavorable outcomes after total knee
replacement in patients with RA.
Methodology & Theoretical Orientation: A MEDLINE review of the literature using was conducted using PubMed,
Embase, and Scopus. Relevant articles published between January 2008 and November 2018 was included. The
attached flow diagram demonstrates the screening process with exclusion criteria. Twelve studies assessing joint
function and five studies assessing pain were included in the final analysis. Downs and black criteria were used to
assess the quality of articles.
Findings: Nine out of 12 studies that assessed function and 5 out of 5 studies that assessed pain noted statistically
significant mean improvement with knee replacement at follow-up of at least one year. The incidence of unfavorable
outcomes varied widely, with studies reporting up to 28% of patients experienced chronic pain and 62% experienced
functional impairment after arthroplasty. The most reliable studies, based on Downs and Black quality criteria,
reported chronic pain in 10% of patients and functional impairment in 16% of patients after knee replacement.
Conclusions & Significance: Overall, knee replacement is associated with significant improvement in joint pain
and function in patients with RA. However, the incidence of unfavorable outcomes varied widely across studies.
Further work is necessary to determine potential risk factors for unfavorable outcomes after total knee replacement
in patients with RA.
Recent Publications
1. McWilliams D F and Walsh D A (2017) Pain mechanisms in rheumatoid arthritis. Clinical and Experimental Rheumatology. 107(5):94-101.
2. Collins N J, Prinsen C A C, Christensen R, Bartels E M, Terwee C B and Roos E M (2016) Knee Injury and
Osteoarthritis Outcome Score (KOOS): systematic review and meta-analysis of measurement properties.
Osteoarthritis Cartilage 24(8):1317-1329.
3. Goodman and Susan M, et al., (2016) Rheumatoid arthritis patients have similar excellent outcomes after total
knee replacement compared with osteoarthritis patients. The Journal of Rheumatology 43(1):46-53.
4. Fingleton C, et al. (2015) Pain sensitization in people with knee osteoarthritis: a systematic review and metaanalysis.
Osteoarthritis Cartilage 23(7):1043-1056.
5. Zhu Y, Zhang F, Chen W, Liu S, Zhang Q and Zhang Y (2015) Risk factors for periprosthetic joint infection
after total joint arthroplasty: a systematic review and meta-analysis. Journal of Hospital Infection 89(2):82-89
Mark Plantz and Alain Sherman are medical students at the Northwestern University Feinberg School of Medicine in Chicago, Illinois. Dr. Kevin Hardt serves as Assistant Professor of Orthopaedic Surgery at the Feinberg School of Medicine. He has published extensively on the topics of rapid recovery protocols and less-invasive techniques pertaining to total joint arthroplasty.
E-mail: m-plantz@northwestern.edu
Cancer Science & Therapy received 5282 citations as per Google Scholar report