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Table 3 Data of preoperative plan and postoperative measurement and related comparison

From: Accuracy and practicability of a patient-specific guide using acetabular superolateral rim during THA in Crowe II/III DDH patients: a retrospective study

Case Inclination (unilateral or L/R) Anteversion (unilateral or L/R) BRCD (mm)
Preoperative plan (°) Postoperative (°) Δ (°) Preoperative plan (°) Postoperative (°) Δ (°)
1 46.0/45.0 48.7/41.8 2.7/3.2 10.0/18.0 7.0/21.6 3.0/3.6 1
2 45.0/47.0 46.1/ 57.1 1.1/10.1 15.0/20.0 17.8/28.6 2.8/8.6 7
3 40.0 35.0 5.0 13.0 15.0 2.0 0.5
4 44.0 37.2 6.8 15.0 15.4 0.4 4
5 45.0 47.3 2.3 15.0 14.4 0.6 3
6 40.0 43.3 3.3 12.0 9.2 2.8 8.7
7 45.0 48.3 3.3 15.0 18.4 3.4 5
8 45.0 46.5 1.5 13.0 9.4 3.6 2
9 50.0 57.6 7.6 15.0 15.8 0.8 2
10 45.0 49.7 4.7 17.0 20.1 3.1 11
11 42.0 37.5 4.5 15.0 14.1 0.9 2
12 42.0 50.1 8.1 15.0 16.6 1.6 4.2
13 45.0 47.5 2.5 15.0 15.5 0.5 0.9
14 46.0 39.6 6.4 17.0 14.2 2.8 2
15 46.0/45.0 42.2/48.0 3.8/3.0 17.0/13.0 12.1/15.3 4.9/2.3 1.2
16 45.0 46.2 1.2 16.0 11.6 4.4 1.8
17 45.0 42.8 2.2 15.0 14.0 1.0 1.1
Mean 44.7 ± 2.3 45.6 ± 5.9 4.2 ± 2.5 15.1 ± 2.2 15.3 ± 4.7 2.7 ± 2.0 3.38 ± 3.0
Paired-samples t test t = − 0.901, P = 0.379 / t = −0.342, P = 0.736 / /