Table 2.

Patients’ Clinical Assessments

Characteristic	Modified 1-Portal Group			Two-Portal Group			Preoperative P Value∗	Postoperative P Value∗
	Preoperative, Mean ± SD	Postoperative, Mean ± SD	P Value†	Preoperative, Mean ± SD	Postoperative, Mean ± SD	P Value†
Clinical scores
ASES score	57.8 ± 16.6	96.2 ± 7.1	<.0001	59.5 ± 9.7	98.1 ± 2.3	<.0001	.87	.5
WOSI index	53.4 ± 14.3	5.7 ± 6.9	<.0001	53.9 ± 12.8	3.2 ± 2.7	<.0001	.61	.22
OSIS	25 ± 5.5	46.4 ± 3.9	<.0001	23.9 ± 7.3	47.2 ± 1.2	<.0001	.45	.32
Range of motion
Abduction (angle)	NA	168° ± 13°	NA	NA	171° ± 12°	NA	NA	.33
External rotation (angle)	NA	85° ± 4°	NA	NA	85° ± 5°	NA	NA	.86

NOTE. P < .05 is statistically significant. Bold values are statistically significant.

ASES, American Shoulder and Elbow Surgeons; NA, not applicable; OSIS, Oxford Shoulder Instability Score; WOSI, Western Ontario Shoulder Instability.

^∗Compared between 2 groups’ values.

^†Compared within each group for their preoperative and postoperative scores.