Table 1.
Basic characteristics and comparative analysis between the two groups of locking plate fixation of distal femoral fractures
| Polyaxial plating system | LISS system | p value | |
|---|---|---|---|
| Number of cases | 21 | 19 | |
| Gender ratio (F/M) | 18/3 | 16/3 | 0.44 |
| Age* |
77, 76.8 (60 to 99 years) |
77, 77.4 (60 to 92 years) |
0.22 |
| Side of fracture ratio (right/left) | 13/8 | 12/7 | 0.82 |
| Charlson comorbidity score* |
5, 5 (2 to 8)¥ |
5, 5.1 (2 to 9)¥ |
0.42 |
| Singh index* |
2, 2.2 (1–3) |
2, 2.2 (1–4) |
0.46 |
| No of periprosthetic fractures (TKA) |
9 42.9% |
8 42.1% |
0.82 |
|
33.A2/3/B/C no, % |
14 66.7% |
5 26.3% |
0.06 |
|
Open reductions no, % |
4 19% |
6 31.6% |
0.04 * |
| Length of incisions* |
15, 15.1 (7 to 33 cm) |
15, 14.8 (7 to 24 cm) |
0.46 |
| Duration of surgery* |
90, 100.2 (70–192 min) |
90, 100.4 (60–168 min) |
0.23 |
| Plate screw density (rate of holes to screws at the shaft of the plate)* |
0.44, 0.5 (0.33 to 0.83) |
0.44, 0.5 (0.25 to 0.83) |
0.43 |
| Working length* |
134, 131.7 (46 to 213 cm) |
133, 130.7 (40 to 227 cm) |
0.77 |
| Plate span width (plate length/fracture length)* |
2.2, 2.5 (1.5 to 4.3) |
2.2, 2.5 (1.3 to 7.7) |
0.47 |
| Length of stay * |
19, 20.5 (10 to 43 days) |
19, 20.6 (4 to 42 days) |
0.83 |
|
Early signs of healing at 3 months No, % |
9 42.9% |
6 31.6% |
0.14 |
|
Union rates at 6 months No, % |
12 57.1% |
13 68.4% |
0.73 |
|
Union rates at 9 months No, % |
15 71.4% |
16 84.2% |
0.63 |
|
Secondary surgeries No, % |
2 9.5% |
5 23.8% |
0.02* |
|
Hardware related problems No, % |
1 4.8% |
6 31.6% |
0.002* |
|
Malunion No, % |
1 4.8% |
1 5.3% |
0.83 |
|
Mortality within 12 months No, % |
3 14.3 |
1 5.3% |
0.15 |
¥Charlson score (median, mean and range) represented as the summation of scores of the different comorbidities recorded in each of the groups as per reference 29
Italics imply statistical significant difference noted
*Median, mean, (range)