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Asian Spine J > Volume 16(2); 2022 > Article
Kataria, Kumar, and Dhatt: Letter to the Editor: Study of Patients with Bilateral Knee Osteoarthritis Undergoing Total Knee Replacement Procedure with Coexisting Lumbar Spondylosis Symptoms
Dear Editor,
We have read the article by Londhe et al. [1] entitled “Study of patients with bilateral knee osteoarthritis undergoing total knee replacement procedure with coexisting lumbar spondylosis symptoms” with great interest and congratulate the authors for this thought-provoking topic; however, there are a few queries that need to be addressed:
  • 1. How did you prevent the possible confounding of the Oswestry Disability Index (ODI) by knee osteoarthritis pain [2]?

  • 2. ODI was moderate to severe preoperatively in all patients, then why was spine not addressed first? How did the ODI decrease after total knee replacement?

  • 3. Was any correlation between ODI and Oxford Knee Score checked?

  • 4. How was the possible selection bias towards advanced osteoarthritis as compared to lumbar spine degeneration addressed in the study?

  • 5. Is it possible that the incidental finding of lumbar degeneration lead to better scrutiny and treatment of spine symptoms in these patients [3]?

Conflicts of interest

No potential conflict of interest relevant to this article was reported.

References

1. Londhe SB, Shah RV, Patwardhan M, et al. Study of patients with bilateral knee osteoarthritis undergoing total knee replacement procedure with coexisting lumbar spondylosis symptoms. Asian Spine J 2021 15:825–30.
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2. Fairbank JC, Pynsent PB. The Oswestry Disability Index. Spine (Phila Pa 1976) 2000 25:2940–52.
crossref pmid
3. Chang CB, Park KW, Kang YG, Kim TK. Coexisting lumbar spondylosis in patients undergoing TKA: how common and how serious? Clin Orthop Relat Res 2014 472:710–7.
crossref pmid


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