Vopat ML, Coda RG, Giusti NE, Baker J, Tarakemeh A, Schroeppel JP, Mullen S, Randall J, Provencher MT, Vopat BG. Differences in Outcomes Between Anterior and Posterior Shoulder Instability After Arthroscopic Bankart Repair: A Systematic Review and Meta-analysis.
Orthop J Sports Med 2021;
9:23259671211006437. [PMID:
34104660 PMCID:
PMC8155769 DOI:
10.1177/23259671211006437]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 02/18/2021] [Indexed: 11/25/2022] Open
Abstract
Background:
The glenohumeral joint is one of the most frequently dislocated joints in the
body, particularly in young, active adults.
Purpose:
To conduct a systematic review and meta-analysis to evaluate and compare
outcomes between anterior versus posterior shoulder instability.
Study Design:
Systematic review; Level of evidence, 4.
Methods:
A systematic review was performed using the PubMed, Cochrane Library, and
MEDLINE databases (from inception to September 2019) according to PRISMA
(Preferred Reporting Items for Systematic Reviews and Meta-Analyses)
guidelines. Studies were included if they were published in the English
language, contained outcomes after anterior or posterior shoulder
instability, had at least 1 year of follow-up, and included arthroscopic
soft tissue labral repair of either anterior or posterior instability.
Outcomes including return-to-sport (RTS) rate, postoperative instability
rate, and pre- and postoperative American Shoulder and Elbow Surgeons (ASES)
scores were recorded and analyzed.
Results:
Overall, 39 studies were included (2077 patients; 1716 male patients and 361
female patients). Patients with anterior instability had a mean age of 23.45
± 5.40 years (range, 11-72 years), while patients with posterior instability
had a mean age of 23.08 ± 8.41 years (range, 13-61 years). The percentage of
male patients with anterior instability was significantly higher than that
of female patients (odds ratio [OR], 1.36; 95% CI, 1.04-1.77;
P = .021). Compared with patients with posterior
instability, those with anterior instability were significantly more likely
to RTS (OR, 2.31; 95% CI, 1.76-3.04; P < .001), and they
were significantly more likely to have postoperative instability (OR, 1.53;
95% CI, 1.07-2.23; P = .018). Patients with anterior
instability also had significantly higher ASES scores than those with
posterior instability (difference in means, 6.74; 95% CI, 4.71-8.77;
P < .001). There were no significant differences
found in postoperative complications between the anterior group (11
complications; 1.8%) and the posterior group (3 complications; 1.6%) (OR,
1.12; 95% CI, 0.29-6.30; P = .999).
Conclusion:
Patients with anterior shoulder instability had higher RTS rates but were
more likely to have postoperative instability compared with posterior
instability patients. Overall, male patients were significantly more likely
to have anterior shoulder instability, while female patients were
significantly more likely to have posterior shoulder instability.
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