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Table 2 Comparison between type A and C + F

From: Influence of the knot position on the union of the greater trochanter after bipolar hip arthroplasty via the modified Dall approach: a prospective non-randomized study

Parameter Type A Type C + F p value
Number of hips 78 17  
Age at operation; years old 82.7 ± 7.4 81.7 ± 7.5 0.60
Sex, male:female 28:50 4:13 0.25
Body mass index; kg/m2 19.2 ± 3.6 21.0 ± 3.2 0.047*
Size of the greater trochanteric fragment
 length; mm 33.2 ± 5.8 33.4 ± 4.2 0.89
 width; mm 21.6 ± 4.0 21.3 ± 4.3 0.83
 thickness; mm 8.9 ± 1.8 8.5 ± 2.0 0.36
Type of the stem    0.43
 Exeter 9 (11.5%) 1 (5.9%)  
 SC 69 (88.5%) 16 (94.1%)  
Surgeon    0.25
 A 49 (62.8%) 7 (41.2%)  
 B 19 (24.4%) 7 (41.2%)  
 Others 10 (12.8%) 3 (17.6%)  
Knot position    0.013*
 Anterior 34 (43.6%) 13 (76.5%)  
 Posterior 44 (56.4%) 4 (23.5%)  
  1. mean ± standard deviation
  2. *means less than 5%