All surgeries (n = 182) | Non-smokersa(n = 152) | Smokersa(n = 27) | p-value | Subjects without diabetesb(n = 161) | Subjects with diabetesb(n = 20) | p-value | |
---|---|---|---|---|---|---|---|
Age | 68 [62-73] | 70 [64-75] | 63 [59-67] | 0.001 | 69 [63-74] | 63 [59-70] | 0.03 |
Gender | Male (78%) | Male (75%) | Male (93%) | 0.04 | Male (79%) | Male (80%) | 0.83 |
BMI | 25.1 [23.4-27.1] | 25.1 [23.4-27.1] | 25.3 [23.1-26.8] | 0.87 | 24.9 [23.1-26.8] | 26.8 [23.7-28.9] | 0.06 |
Hypertension (treated) (%) | 46% | 46% | 41% | 0.71 | 42% | 75% | 0.001 |
Statin treatment (%) | 20% | 20% | 19% | 0.88 | 17% | 40% | 0.0001 |
Preoperative flexion contracture (degrees) | 90 [60-110] | 85 [60-105] | 98 [79-143] | 0.04 | 90 [60-110] | 80 [63-113] | 0.95 |
Postoperative flexion contracture (degrees) | 20 [0-35] | 20 [0-30] | 30 [11-40] | 0.12 | 20 [0-35] | 20 [15-35] | 0.57 |
Improvement (degrees) | 65 [45-87] | 60 [45-85] | 78 [40-91] | 0.60 | 65 [45-90] | 60 [45-80] | 0.55 |
Preoperative Tubiana stage | 1b [20 (11%)] | 1b [19 (12%)] | 1b [1 (4%)] | 0.09 | 1b [19 (12%)] | 1b [1 (5%)] | 0.97 |
2 [81 (45%)] | 2 [69 (45%)] | 2 [10 (37%)] | 2 [70 (43%)] | 2 [10 (50%)] | |||
3 [41 (22%)] | 3 [36 (24%)] | 3 [5 (18%)] | 3 [37 (23%)] | 3 [4 (20%)] | |||
4 [18 (10%)] | 4 [12 (8%)] | 4 [6 (22%)] | 4 [16 (10%)] | 4 [2 (10%)] | |||
Unknown [22 (12%)] | Unknown [16 (11%] | Unknown [5 (19%)] | Unknown [19 (12%)] | Unknown [3 (15%)] | |||
Postoperative Tubiana stage | 0 [34 (19%)] | 0 [29 (19%)] | 0 [4 (15%)] | 0.66 | 0 [31 (19%)] | 0 [3 (15%)] | 0.98 |
1a [37 (20%)] | 1a [33 (22%)] | 1a [4 (15%)] | 1a [32 (19%)] | 1a [5 (25%)] | |||
1b [49 (27%)] | 1b [38 (25%)] | 1b [11 (41%)] | 1b [43 (27%)] | 1b [6 (30%)] | |||
2 [10 (5.5%)] | 2 [9 (6%)] | 2 [1 (4%)] | 2 [9 (6%)] | 2 [1 (5%)] | |||
3 [1 (0.5%)] | 3 [1 (1%)] | 3 [0 (0%)] | 3 [1 (1%)] | 3 [0 (0%)] | |||
4 [0 (0%)] | 4 [0 (0)] | 4 [0 (0%)] | 4 [0 (0%)] | 4 [0 (0%)] | |||
Unknown [51 (28%)] | Unknown [42 (28%)] | Unknown [7 (26%)] | Unknown [45 (28%)] | Unknown [5 (25%)] |