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Table 2 Outcomes and complications in identified studies

From: Does arthroscopic repair show superiority over open repair of lateral ankle ligament for chronic lateral ankle instability: a systematic review and meta-analysis

Study Group AOFAS Karlsson VAS JSSF Anterior drawer test
(mm)
Talar tilt angle
(°)
Complication rate Revision rate
Yeo et al. AS 90.3 76.2 1.7 NR − 1.7(8.4 to 6.7) − 3.4(7.3 to 3.9) 20%(3:nerve injury, 2:knot pain) NR
  open 89.2 73.5 2 NR − 1(7.8 to 6.8) − 1.6(5.4 to 3.8) 13%(2:nerve injury, 1:infection) NR
Matsui et al. AS NR NR 1.2 98 − 5.6(8.4 to 2.8) − 6.8(10 to 3.2) 10.5%(2:nerve injury) 0%
  open NR NR 1.9 95.4 − 6.2(9.1 to 2.9) − 7(9.9 to 2.9) 22.2%(3:wound irritation, 1:nerve injury) 0%
Li et al. AS 93.3 90.3 NR NR NR NR 4.3%(1:persistent pain) 0%
  open 92.4 89.4 NR NR NR NR 5.4%(2:persistent pain) 0%
Rigby et al. AS 95.33 91.8 1.5 NR NR NR 6.7%(1:nerve injury, 1:DVT) NR
  open 93.53 93.41 1.2 NR NR NR 6.3%(2:nerve injury) NR
DeVries et al. AS NR NR NR NR NR NR 14%(5:revision, 1:infection) 11.6%
  open NR NR NR NR NR NR 16.7%(1:tendinitis, 1:infection) 0%
Yi et al. AS 93.4 89.3 NR 97.2 − 5.4(8.6 to 3.2) − 5.5(8.8 to 3.3) 8.6%(2:nerve injury, 1:knot pain) 0%
  open 91.8 88.9 NR 95.6 − 5.6(8.9 to 3.3) − 6.4(9.5 to 3.1) 13.3%(2:nerve injury, 2:knot pain) 0%
Zeng et al. AS 92.4 89.2 NR NR − 2.8(12.9 to 10.1) − 2.4(11.2 to 8.8) 11.8%(1:nerve injury, 1:poor healing) NR
  open 91.1 90.5 NR NR − 3.3(13.6 to 10.3) − 2.7(10.4 to 7.7) 30%(1:knot pain, 2:poor healing) NR
Xu et al. AS 87.7 NR 1.8 NR NR NR 15.6%(3:nerve injury, 2:knot pain) NR
  open 86.9 NR 2.1 NR NR NR 11.4%(2:nerve injury, 2:infection) NR
Woo et al. AS 94.2 NR 1.2 NR NR NR 0.0% 0%
  open 70.9 NR 2.1 NR NR NR 0.0% 0%
  1. Abbreviations: AOFAS American Orthopaedic Foot and Ankle Society, VAS visual analog scale; JSSF Japanese Society for Surgery of the foot ankle-hindfoot, AS arthroscopic, NR not reported, DVT deep venous thrombosis