Clinical results and complications following surgical management of symptomatic os acromiale: a systematic review

Table 3 Active range of motion stratified by surgical category

Surgical technique	No. of patients	No. of shoulders	Range of motion (mean, range)
Surgical technique	No. of patients	No. of shoulders	FE Preop	FE Postop	Change^†	ER Preop	ER Postop	Change^†
Excision	71	77	156.5 (143–170) (n = 7)*	166.5 (163–170) (n = 7)*	10	70 (70) (n = 1)*	70 (70) (n = 1)*	0
Acromioplasty	18	18	117 (102–132) (n = 11)*	145.3 (134–152) (n = 18)*	28.3	33.3 (22.5–44) (n = 11)*	42 (35–46) (n = 18)*	8.7
ORIF	121	126	125.7 (116–144.5) (n = 24)*	155.7 (141–165) (n = 24)*	30	53 (38–61) (n = 24)*	54.5 (37–64.5) (n = 24)*	1.5

The values are presented in degrees (weighted means, range)
ORIF open reduction and internal fixation, FE forward elevation, ER external rotation, Preop preoperative, Postop postoperative
*The number of patients with available data
^†Postoperative score minus preoperative score

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