Table 1 Preoperative profiles
Variables | Singh (I ~ II) | Singh (III ~ IV) | Singh (V ~ VI) | P value |
|---|---|---|---|---|
Age (year) | 84.72 ± 3.15 | 84.05 ± 3.59 | 83.80 ± 2.25 | P = 0.38 |
Sex (male/female) | 51/69 | 60/60 | 63/57 | P = 0.65 |
Body mass index (BMI) | 22.68 ± 2.85 | 23.13 ± 1.81 | 22.52 ± 2.54 | P = 0.52 |
Affected side (Left/Right) | 57/63 | 54/66 | 69/51 | P = 0.50 |
Jensen-Evans Type |  |  |  | P = 0.98 |
 II | 7 | 9 | 8 |  |
 III | 23 | 24 | 19 |  |
 IV | 45 | 48 | 48 |  |
 V | 45 | 39 | 45 |  |
OTA/AO classification | ||||
 A1 | 10 | 15 | 14 |  |
 A2 | 68 | 56 | 60 |  |
 A3 | 42 | 49 | 46 |  |
 Lateral wall thickness | 24.23 ± 0.95 | 24.05 ± 1.32 | 24.70 ± 1.81 | P = 0.11 |
Reduction effect | ||||
 Tip-apex distance (TAD) | 23.15 ± 1.59 | 23.28 ± 2.14 | 24.00 ± 2.49 | P = 0.15 |
 Difference in cervical shaft angle | 4.40 ± 0.98 | 4.78 ± 1.19 | 4.50 ± 0.82 | P = 0.23 |
Basic diseases |  |  |  | P = 0.58 |
 Hypertension | 12 | 18 | 21 |  |
 Type II diabetes | 15 | 21 | 9 |  |
 Severe Cardiovascular disease | 0 | 0 | 0 |  |
 Severe Endocrine disease | 0 | 0 | 0 |  |