Platelet-Rich Plasma Injections for the Treatment of Ankle Osteoarthritis

Background: Ankle osteoarthritis is debilitating and usually affects relatively young people, often as a result of previous ankle traumas, frequently occurring in sports. Platelet-rich plasma (PRP) injections for ankle osteoarthritis have shown no evidence of benefit over the course of 26 weeks. Previous studies on PRP for knee osteoarthritis showed that clinically significant improvements with PRP occurred between 6 to 12 months in the absence of initial benefit. No studies have evaluated the effect of PRP from 6 to 12 months in ankle osteoarthritis. Purpose: To assess the efficacy of PRP injections in ankle osteoarthritis over the course of 52 weeks. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: In this 52-week follow-up trial, 100 patients with ankle osteoarthritis were randomized to a PRP group or placebo (saline) group. Patients received 2 intra-articular talocrural injections: at inclusion and after 6 weeks. Patient-reported outcome measures were used to assess pain, function, quality of life, and indirect costs over 52 weeks. Results: Two patients (2%) were lost to follow-up. The adjusted between-group difference for the patient-reported American Orthopaedic Foot & Ankle Society score over 52 weeks was −2 points (95% CI, −5 to 2; P = .31) in favor of the placebo group. No significant between-group differences were observed for any of the secondary outcome measures. Conclusion: For patients with ankle osteoarthritis, PRP injections did not improve ankle symptoms and function over 52 weeks compared with placebo injections. Registration: NTR7261 (Netherlands Trial Register).

• Publication year

  2023

• Venue

  American Journal of Sports Medicine

• Publication date

  2023-07-07

• Fields of study

  Medicine

• Identifiers
  DOI 10.1177/03635465231182438PMID 37417359PMCID 10394962
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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