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Table 1 Comparison of patient’s demographic characteristics of two surgical options (mean ± SD or n, %)

From: Arthroscopic release using F and C method versus conventional open release method in the treatment of gluteal muscle contracture: a comparative study

Parameters Arthroscopic surgery (n = 75) Conventional open surgery (n = 71) P-value
Age 25.07 ± 6.19 (16–46) 25.30 ± 5.38 (17–42) 0.812
Male/Female (n) 25/50 33/38 0.105
Zhao Classification    0.064
 Mild 25 (33.4) 13 (18.3)  
 Moderate 40 (53.3) 41 (57.7)  
 Severe 10 (13.3) 17 (23.9)  
Duration of procedure (min) 21.75 ± 8.23 (8–55) 19.32 ± 7.54 (9–45) 0.066
Incision length (cm) 0.52 ± 0.09 (0.5 - 1) 7.18 ± 1.24 (5–10) <0.001*
Follow-up (months) 29.40 ± 6.82 (18–42) 26.76 ± 6.03 (18–40) 0.015*
Post operative analgesia (n, %)    <0.001*
 Not required 67 (89.3) 21 (29.6)  
 Required 8 (10.7) 48 (67.6)  
Post-operative hospital stay (days) 3.56 ± 0.70 (3–5) 5.23 ± 1.00 (4–7) <0.001*
Post-operative off-bed activity (days) 1.60 ± 0.65 (1–3) 3.75 ± 0.84 (2–6) <0.001*
  1. SD Standard Deviation, min minute, cm centimeter; (*) = Statistically significant difference between the groups