What question did this study set out to answer?

To evaluate the clinical efficacy of arthroscopic lavage and arthroscopic débridement compared with a placebo surgical procedure for relieving symptoms of osteoarthritis of the knee.

July 11, 2002New England Journal of MedicineOpen Access

A Controlled Trial of Arthroscopic Surgery for Osteoarthritis of the Knee

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Authors

JMJ. Bruce MoseleyHerefordshire & Worcestershire Earth Heritage Trust KOKimberly J. O’MalleyPearson (United States)NPNancy J. PetersenUniversity of Arizona

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Implication

Randomized placebo-controlled trial finds no pain or functional benefit of arthroscopy in knee osteoarthritis, indicating symptom relief stems from placebo effects.

Key Points

To evaluate the clinical efficacy of arthroscopic lavage and arthroscopic débridement compared with a placebo surgical procedure for relieving symptoms of osteoarthritis of the knee.
Randomized, double-blind, placebo-controlled trial assigning 180 patients with osteoarthritis of the knee to arthroscopic débridement, arthroscopic lavage, or sham surgery with skin incisions only.
Blinded patients and outcome assessors over a 24-month follow-up period, with 165 patients completing the trial.
Assessed outcomes across multiple intervals using five validated self-reported scales (three pain, two function) and one objective walking and stair-climbing test.
Mean (±SD) Knee-Specific Pain Scale scores (0–100 scale, higher scores indicate worse pain) at 1 year were 48.9 ± 21.9 for placebo, 54.8 ± 19.8 for lavage (P=0.14 vs placebo), and 51.7 ± 22.4 for débridement (P=0.51 vs placebo).
Mean pain scores at 2 years remained similar across groups at 51.6 ± 23.7 for placebo, 53.7 ± 23.7 for lavage (P=0.64 vs placebo), and 51.4 ± 23.2 for débridement (P=0.96 vs placebo).
Neither intervention group achieved superior pain reduction or functional recovery compared to placebo at any evaluation point, with 95% confidence intervals ruling out any clinically meaningful differences.

Cite This Study

Moseley et al. (2002) studied this question.

synapsesocial.com/papers/6a7c8d69178e986690cf7d80 https://doi.org/10.1056/nejmoa013259

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Implication

Randomized placebo-controlled trial finds no pain or functional benefit of arthroscopy in knee osteoarthritis, indicating symptom relief stems from placebo effects.

A Controlled Trial of Arthroscopic Surgery for Osteoarthritis of the Knee

Discussion

Member takes

Implication

Key Points

Cite This Study

A Controlled Trial of Arthroscopic Surgery for Osteoarthritis of the Knee

Discussion

Member takes

Implication

Key Points

Cite This Study

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