Table 2. Patient Characteristics, Surgical Parameters, Radiographic Indices, and Complications.
| Variable | Data | P-value |
|---|---|---|
| Patient characteristic | 194 (148/46) | |
| Age (yr) | 82.6±8.4 (83.0±8.4/81.5±8.3) | 0.3 |
| Height (cm) | 152.9±8.5 (149.7±5.6/163.6±7.9) | <0.01 |
| Weight (kg) | 47.9±10.3 (45.3±8.8/56.4±10.7) | <0.01 |
| Body mass index (kg/m2) | 20.3±3.6 (20.1±3.5/20.9±3.9) | 0.2 |
| Surgical parameter | ||
| Approaches | ||
| Supine-position | 46 (23.7) | |
| Lateral-position | 148 (76.3) | |
| Young surgeons' hemi-arthroplasty | 142 (73.2) | |
| Operation duration (min) | 66.2±21.7 (64.8±21.4/70.8±22.2) | 0.1 |
| Blood loss (g) | 140.3±133.2 (131.9±123.1/167.6±160.4) | 0.1 |
| LLD (mm) | 3.2±5.5 (3.7±5.4/1.9±5.6) | 0.06 |
| Varus (°) | 0.1±1.6 (0.1±1.5/0.1±1.9) | 0.9 |
| Implants | ||
| J-Taper | 184 (94.8) | |
| J-Taper to cement stem | 4 (2.1) | |
| Others | 6 (3.1) | |
| Radiographic indices (n=188) | ||
| Center-edge angle (°) | 31.5±6.5 (31.2±6.4/32.2±6.7) | 0.4 |
| Canal flare index | 3.6±0.6 (3.5±0.7/3.6±0.6) | 0.4 |
| Complications | ||
| Follow-up duration (mo) | 10±9 | |
| Patients with complications | 35 (18.0) | |
| Intra-operative fractures | 11 (5.7) | 0.17 |
| Young surgeon (n=142) | 6 (4.2) | |
| Experienced (n=52) | 5 (9.6) | |
| Post-operative fractures | 6 (3.1) | |
| Contralateral fractures | 6 (3.1) | |
| Death | 6 (3.1) | |
| Cerebrovascular infarctions | 5 (2.6) | |
| Dislocations | 3 (1.5) | |
| sDVT | 1 (0.5) | |
| Deep infections | 0 (0) |
Values are presented as number only (female/male), mean±standard deviation (female/male), or number (%).
LLD: limb length discrepancy, sDVT: symptomatic deep venous thrombosis.