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Table 1 Details of studies on hook plate fixation with or without coracoclavicular augmentation for acromioclavicular dislocation

From: Does coracoclavicular augmentation additional to hook plate fixation provide benefits in acute unstable acromioclavicular dislocation? A meta-analysis

Study Study design Treatment Sex (M/F) Rockwood type (III/ V) Injury to Surgery Age (y)a Time for implant removala Follow-up (m)a Outcome measures Quality assessment
Yin 2018 [38] RCT HP only 18/7 16/10 <  6 weeks 44.5 ± 12.3 12.9 ± 1.8 mo 21.3 ± 2.0 VAS/ASES/CMS/Karlsson score/ patient satisfaction 3b
CCHP 20/6 14/11 46.3 ± 11.9 4.9 ± 1.2 mo 19.9 ± 2.9
Chang 2019 [39] RCS HP only 16/10 12/14 <  2 weeks 50 (24–69) 6 (3–12) mo 11 (9–27.1) VAS/UCLA/ASES/Return to work 7c
CCHP 15/6 7/14 44 (21–81) 6 (5–10) mo 9.5 (9–11.4)
Liu 2020 [41] RCS HP only 0/112 <  2 weeks 46 (19–75) 102.8 (89–116) d 6 (after implant removal) VAS/CMS 7c
CCHP 0/105 50 (18–62) 101.3 (86–118) d
Seo 2020 [42] RCS HP only 38/9 26/21 <  2 weeks 44.6 ± 15.4 4.2 ± 0.7 mo 18.7 ± 6.2 ASES/KSS/CMS 7c
CCHP 65/8 34/39 46.9 ± 12.6 4.0 ± 1.0 mo 18.1 ± 4.8
Chen 2021 [40] RCS HP only 15/4 9/10 <  4 weeks 44.5 ± 15.4 5.3 ± 1.5 mo 38.5 ± 24.9 VAS/CMS/UCLA/Taft score 8c
CCHP 13/6 10/9 46.4 ± 16.4 5.7 ± 1.6 mo 2.6 ± 21.7
  1. RCS retrospective case–control study, RCT randomized controlled trial, CCHP coracoclavicular augmentation with hook plate fixation, HP hook plate, mo month, d day, VAS visual analog scale score for pain, UCLA University of California at Los Angeles shoulder rating scale score, ASES American Shoulder and Elbow Surgeons score, KSS Korean shoulder score, CMS Constant–Murley score
  2. aMean ± standard deviation and Mean (range) are given for these variables
  3. bAssessed using the Jadad scale
  4. cAssessed using the Newcastle–Ottawa scale