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Table 2 Analyses of changes in spinopelvic complex elements lumbar flexibility (∆ LL = LLstanding − LLsitting), pelvic mobility (∆ PT = PTstanding − PTsitting) and hip motion (∆ PFA = PFAstanding − PFAsitting) due to THA between preoperative and postoperative

From: Spinopelvic mobility is influenced by pre-existing contralateral hip arthroplasty: a matched-pair analysis in patients undergoing hip replacement

Changes of spinopelvic mobility due to THA

Parameters

Groups

Preoperative mean (± SD)

Postoperative mean (± SD)

p value

∆ LL (°)

Pre-existing

21.6 (11.8)

25.7 (11.0)

.012

Control

12.4 (7.8)

19.0 (10.2)

 < .001

∆ PT (°)

Pre-existing

18.2 (10.7)

22.2 (9.3)

.010

Control

7.7 (8.0)

17.0 (9.2)

 < .001

∆ PFA (°)

Pre-existing

55.9 (15.9)

51.1 (11.6)

.032

Control

67.9 (14.0)

55.2 (14.0)

 < .001

  1. Pre-existing represents the group of patients with a pre-existing THA and control represents the propensity score matched group of patients in the control group without a pre-existing THA. p values indicating pre- and postoperative differences in patients with pre-existing THA and the matched control group. Wilcoxon rank sum test was used and level of significance set at p < 0.05. SD = standard deviation. Significant differences are marked in bold