Open Access

Table 3

The improvement of AHD for both group.

AHD (mm) Preoperative
Post-operative
Average AHD improvement
P-value
(mean ± SD) (mean ± SD) (mean ± SD) (%)
Open Group
 At anterior third of lateral acromion border 4.8 ± 1.4 7.9 ± 1.6 3.1 ± 1.8 (78.4%) <0.001*
 At middle third of lateral acromion border 4.7 ± 1.2 7.2 ± 1.8 2.4 ± 1.8 (−60.90%) <0.001*
 At posterior third of lateral acromion border 5.9 ± 1.2 6.6 ± 1.3 1.5 ± 1.2 (−44.50%) <0.001*
Arthroscopic Group
 At anterior third of lateral acromion border 5.2 ± 0.9 7.1 ± 1.2 2.1 ± 1.4 (−42.50%) <0.001*
 At middle third of lateral acromion border 4.8 ± 0.7 6.7 ± 1.1 1.9 ± 1.1 (−39.80%) <0.001*
 At posterior third of lateral acromion border 5.8 ± 0.8 6.4 ± 1.4 1.5 ± 1.4 (−32.40%) <0.001*
*

Paired t-test.

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