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Table 4 The changes and paired samples t test of pre- and postoperative HHS

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

 

n

HHS mean

t value

P value

Preoperative

17

40.65 ± 9.66

− 20.518

0.000

Postoperative (12 weeks)

87.29 ± 4.40

Preoperative

16a

39.94 ± 9.51

− 22.796

0.000

Postoperative (24 weeks)

92.38 ± 2.03

Postoperative (12 weeks)

16a

87.25 ± 4.54

− 5.149

0.000

Postoperative (24 weeks)

92.38 ± 2.03

  1. aOne patient only completed the follow-up at 12 weeks after surgery