Suture button versus syndesmosis screw constructs for acute ankle diastasis injuries: A meta-analysis and systematic review of randomised controlled trials

Foot Ankle Surg. 2020 Jan;26(1):54-60. doi: 10.1016/j.fas.2018.11.008. Epub 2018 Nov 22.

Abstract

Background: Ankle syndesmotic injuries can be surgically managed with syndesmosis screws (SS) or suture button (SB) fixation. We performed a meta-analysis of randomized controlled trials (RCTs) aiming to compare the clinical and complication profiles of both modalities.

Methods: A multi-database search up to 4th of March 2018 was performed according to PRISMA guidelines. All RCTs comparing both techniques and published in English were included.

Results: Five RCTs with a total of 280 patients (140 SB, 140 SS) were included for analysis. SB had a statistically significant higher AOFAS score at 1 year (mean difference=5.46, 95% CI=0.40-10.51, p=0.03) and lower implant failure rate (OR=0.03, 95% CI=0.01-0.15, p<0.001). Infection and wound issues were marginally higher with SB (OR=1.4, 95% CI=0.4-4.85, p=0.60). No other parameters showed statistically significant difference.

Conclusions: Both constructs yielded similar clinical outcomes. The 1 year AOFAS score was higher in SB but clinical significance is unlikely. SB had significantly fewer implant failures.

Level of evidence: Level I.

Keywords: Ankle; Diastasis; Screw; Suture button; Syndesmosis.

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Ankle Injuries / surgery*
  • Ankle Joint / surgery*
  • Bone Screws*
  • Fracture Fixation, Internal / methods*
  • Humans
  • Randomized Controlled Trials as Topic
  • Suture Techniques*
  • Sutures*