Table 2 Patient demographics for fracture groups for straight stem and short stem total hip arthroplasty before and after matching
Patient Demographics | Pre-matched cohort | Â | Post-matched cohort | Â | ||
|---|---|---|---|---|---|---|
Straight stem (n = 95) | Short stem (n = 39) | P value | Straight stem (n = 67) | Short stem (n = 37) | P value | |
Gender | Â | Â | 1.000 | Â | Â | 1.000 |
Female | 69 (72.6%) | 29 (74.4%) | Â | 49 (77.8%) | 28 (75.7%) | Â |
Male | 26 (26.4%) | 10 (25.6%) | Â | 14 (22.2%) | 9 (24.3%) | Â |
Age at operation (in years) | 72.1 ± 10.9 | 74.4 ± 11 | 0.440 | 72.8 ± 10.7 | 74.5 ± 11.3 | 0.575 |
Diagnosis | Â | Â | 0.708 | Â | Â | 1.000 |
Primary OA | 79 (83.2%) | 30 (76.9%) | Â | 50 (79.4%) | 30 (81.1%) | Â |
ON | 13 (13.7%) | 8 (20.5%) | Â | 10 (15.9%) | 6 (16.2%) | Â |
Hip dysplasia | 3 (3.2%) | 1 (2.6%) | Â | 3 (4.8%) | 1 (2.7%) | Â |
Side | Â | Â | 1.000 | Â | Â | 1.000 |
Left | 37 (38.9%) | 15 (38.5%) | Â | 25 (39.7%) | 15 (40.5%) | Â |
Right | 58 (61.1%) | 24 (61.5%) | Â | 38 (60.3%) | 22 (59.5%) | Â |
ASA Score | Â | Â | 0.030 | Â | Â | 0.090 |
1 | 5 (5.3%) | 3 (7.7%) | Â | 2 (3.2%) | 3 (8.1%) | Â |
2 | 62 (65.3%) | 16 (41%) | Â | 40 (63.5%) | 16 (42.3%) | Â |
3 | 28 (29.5%) | 20 (51.3%) | Â | 21 (33.3%) | 18 (48.6%) | Â |
4 | 0 (0.0%) | 0 (0.0%) | Â | 0 (0.0%) | 0 (0.0%) | Â |
Surgical experience | Â | Â | 0.005 | Â | Â | 1.000 |
Consultant | 56 (58.9%) | 33 (84.6%) | Â | 52 (82.5%) | 31 (83.8%) | Â |
Resident | 39 (41.1%) | 6 (15.4%) | Â | 11 (17.5%) | 6 (16.2%) | Â |
BMI (kg/m2) | 28.9 ± 4.8 | 27.6 ± 5.9 | 0.655 | 27.9 ± 4.6 | 27.6 ± 6 | 0.742 |
Height (cm) | 165.1 ± 9.1 | 164.3 ± 9.5 | 0.226 | 165 ± 9.8 | 164.2 ± 9.7 | 0.721 |
Weight (kg) | 79.1 ± 16.9 | 75.1 ± 19.5 | 0.113 | 76.4 ± 16.9 | 75.1 ± 20 | 0.605 |
Dorr Classification | Â | Â | 0.070 | Â | Â | 0.199 |
A | 26 (27.4%) | 4 (10.3%) | Â | 15 (23.8%) | 4 (10.8%) | Â |
B | 51 (53.7%) | 28 (71.8%) | Â | 34 (54%) | 26 (70.3%) | Â |
C | 18 (18.9%) | 7 (17.9%) | Â | 14 (22.2%) | 7 (18.9%) | Â |