From: Risk factors of early periprosthetic femoral fracture after total knee arthroplasty
Characteristics | PFF group (n = 24) | Control group (n = 96) | p-value |
---|---|---|---|
Age (yr) | 77.1 ± 6.7 | 69.0 ± 7.2 | < 0.001* |
Gender (female,%) | 22 (91.7%) | 84 (87.5%) | 0.733 |
Weight (kg) | 63.5 ± 11.2 | 66.5 ± 12.8 | 0.287 |
Height (cm) | 152.6 ± 7.6 | 154.9 ± 7.8 | 0.205 |
BMI (kg/m2) | 27.3 ± 4.6 | 27.7 ± 4.8 | 0.701 |
Side (right,%) | 20 (83.3%) | 53 (55.2%) | 0.012* |
DCCI (scores) | 0.5 ± 0.9 | 0.3 ± 0.5 | 0.348 |
Diagnosis (%) | |||
Osteoarthritis | 22 (91.7%) | 96 (100.0%) | 0.039* |
Rheumatoid arthritis | 2 (8.3%) | 0 (0.0%) | |
Underlying diseases (%) | |||
Diabetes | 5 (20.8%) | 25 (26.0%) | 0.598 |
Hypertension | 18 (75.0%) | 73 (76.0%) | 0.915 |
Dyslipidemia | 14 (58.3%) | 34 (35.4%) | 0.040* |
Cardiovascular disease | 2 (8.3%) | 5 (5.2%) | 0.626 |
Thyroid disease | 1 (4.2%) | 1 (1.0%) | 0.361 |
Parkinson disease | 3 (12.5%) | 0 (0.0%) | 0.007* |
Steroid use (%) | 1 (4.2%) | 0 (0.0%) | 0.200 |
Surgical approach (%) | |||
Medial parapatellar | 23 (95.8%) | 95 (99.0%) | 0.361 |
Midvastus | 1 (4.2%) | 1 (1.0%) | |
Operative time (min) | 81.5 ± 23.4 | 79.9 ± 30.2 | 0.201 |
Prosthesis design (%) | |||
Cruciate-retaining | 0 (0.0%) | 24 (25.0%) | 0.004* |
Posterior-stabilized | 24 (100.0%) | 72 (75.0%) | |
Prosthesis brand (%) | |||
Zimmer | 20 (83.3%) | 63 (65.6%) | 0.049* |
Depuy | 3 (12.5%) | 31 (32.3%) | |
Stryker | 1 (4.2%) | 0 (0.0%) | |
Smith Nephew | 0 (0.0%) | 2 (2.1%) |