Digital templating in total hip arthroplasty: Additional anteroposterior hip view increases the accuracy

Table 1 Accuracy of acetabular cup n (%)

Preoperative planningvs implant used	Group zero n = 50	First group n = 50	Second group n = 50
- 2 sizes smaller	-	-	-
- 1 size smaller	6 (12)	8 (16)	5 (10)
Exact size	17 (34)	27 (54)	38 (76)
+ 1 size larger	15 (30)	12 (24)	5 (10)
+ 2 sizes larger	9 (18)	2 (4)	2 (4)
+ 3 sizes larger	2 (4)	1 (2)	-
+ 4 sizes larger	1 (2)	-	-

Table 2 Accuracy of femoral stem n (%)

Preoperative planning vs implant used	Group zero n = 50	First group n = 50	Second group n = 50
- 2 sizes smaller	1 (2)	3 (6)	3 (6)
- 1 size smaller	11 (22)	20 (40)	9 (18)
Exact size	16 (32)	16 (32)	33 (66)
+ 1 size larger	17 (34)	10 (20)	5 (10)
+ 2 sizes larger	5 (10)	1 (2)	-