Table 1.
Patient characteristics and surgical data in the hip resurfacing system (HRS) and conventional hybrid prosthesis (MHE) groups
| Variables | HRS group (N = 11) | MHE group (N = 11) | p values |
|---|---|---|---|
| Age in years (median ) | 60 (51–65) | 61 (56–65) | 0.7 a |
| Femaleb | 7/11 (0.6) | 8/11 (0.7) | 0.6 c |
| Male | 4/11 (0.4) | 3/11 (0.3) | |
| Weight, kg (median and range) | 77 (64.4–96.2) | 77 (60.8–94.8) | 0.7 a |
| Height, m (median and range) | 168.5 (156.5–178.5) | 167.5 (159.5–181.5) | 0.9 a |
| BMI (median and range) | 27 (22–34) | 27 (21–31) | 0.6 a |
| Surgical time, min (median and range) | 93 (70–120) | 72 (47–100) | 0.02 a |
| Harris hip score (median and range) | 53 (36–68) | 50 (26–65) | 0.5 a |
| WOMAC pain (median and range) | 28 (15.5–38.5) | 22 (8.5–44) | 0.6 a |
| WOMAC stiff (median and range) | 12.5 (3–17.5) | 11 (2–18.5) | 0.9 a |
| WOMAC function (median and range) | 72.5 (54–125.5) | 95 (37.5–149) | 0.3 a |
| WOMAC total (median and range) | 112 (95.5–170) | 128.5 (48–211.5) | 0.6 a |
BMI body mass index, WOMAC Western Ontario and McMaster Universities Arthritis Index
aMann-Whitney test
bProportions are given in parentheses
cFisher’s exact test