Table 1.
Patient and fracture characteristics
| Variable | WBAT (n = 28) | RWB (n = 15) | p value |
|---|---|---|---|
| Age (years) | 83.1 (11.6) | 76.8 (11.1) | 0.092* |
| BMI | 26.5 (5.6) | 27.6 (6.1) | 0.591* |
| BMI ≥30 | 8 [28.6] | 5 [33.3] | 0.564^ |
| Female gender | 24 [85.7] | 13 [86.7] | 0.932^ |
| Osteoporosis | 9 [32.1] | 2 [13.3] | 0.273^^ |
| Bisphosphonates | 4 [14.2] | 1 [6.7] | 0.639^^ |
| Pre-fracture functional mobility scale | |||
| 0 - Full activity | 9 [32.1] | 6 [40.0] | 0.771^ |
| 1 - Walking with assistance | 8 [28.6] | 5 [33.3] | |
| 2 - Walking with assistance for short periods only | 4 [14.3] | 3 [20.0] | |
| 3 - Walking with assistance for ADLs/appointments only | 2 [7.1] | 0 | |
| 4 - Confined to a wheelchair | 1 [3.6] | 0 | |
| 5 - Bedridden | 1 [3.6] | 0 | |
| Fracture features | |||
| Su classification | 0.891 | ||
| I | 6 [21.4] | 4 [26.7] | |
| II | 17 [60.7] | 8 [53.3] | |
| III | 5 [17.9] | 3 [20.0] | |
| Medial comminution | 4 [14.3] | 5 [33.3] | 0.238^^ |
| Interprosthetic | 2 [7.1] | 5 [33.3] | 0.040^ |
| Time since TKA (years) | 10.4 (5.7) | 7.6 (4.5) | 0.124* |
| Surgical parameters | |||
| Time to surgery (days) | 3 | 2 | 0.238** |
| Anatomic reduction | 19 [67.9] | 9 [60.0] | 0.606^ |
| Golf-club deformity | 3 [10.7] | 2 [13.3] | 1.00^^ |
| Cables | 8 [28.6] | 7 [46.7] | 0.235^ |
| Dual plating | 3 [10.7] | 2 [13.3] | 1.00^^ |
| Open approach | 13 [46.4] | 9 [60.0] | 0.755^ |
Data presented as mean (SD) or number [%]
BMI body mass index, RWB restricted weight-bearing, TKA total knee arthroplasty, WBAT weight-bearing as tolerated
* Unpaired T-test
** Mann Whitney U test
^ Chi square
^^ Fisher's exact