Superior capsular reconstruction - A systematic review and meta-analysis

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Regenerative Medicine

Background:

• Mihata's 2012 proposal introduced arthroscopic superior capsule reconstruction for massive irreparable rotator cuff tears.
• Various grafts, including autografts and allografts, have been utilized in this procedure.
• Clinical outcomes of superior capsule reconstruction (SCR) using different graft materials have been reported.

Purpose of the Study:

• To conduct a meta-analysis evaluating the clinical and radiological outcomes of superior capsule reconstruction.
• To synthesize existing evidence on the efficacy of SCR for massive irreparable rotator cuff tears.

Main Methods:

• Systematic review and meta-analysis adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
• Literature search across MEDLINE, Scopus, Embase, and Cochrane Library databases.
• Quality assessment using the Methodological Index for Nonrandomized Studies (MINORS) criterion; inclusion of English studies on SCR.

Main Results:

• Eighteen studies with 637 shoulders (mean age 62 years) were included; no Level I or II studies met criteria.
• Significant improvements observed in abduction, elevation, external rotation, and internal rotation post-SCR.
• Marked improvements in pain (VAS), functional scores (Constant, SSV, ASES), with a 76.1% healing rate and low complication rates (5.6%).

Conclusions:

• Superior capsule reconstruction demonstrates satisfactory clinical and radiological results at a 2-year follow-up.
• The technique appears most beneficial for isolated, irreparable supraspinatus tears after conservative treatment failure.
• Further high-quality comparative studies are necessary to definitively establish SCR's role in the therapeutic armamentarium.