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Predictors of safety margin for coracoid transfer: a cadaveric morphometric analysis
Terufumi Shibata1, Teruaki Izaki2, Satoshi Miyake2
1Department of Orthopaedic Surgery, Fukuoka University Faculty of Medicine, 7-45-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180, Japan. teru-sky-ideal@lion.ocn.ne.jp.
Journal of Orthopaedic Surgery and Research
|June 12, 2019
Summary
Coracoid transfer bone length is predictable using cadaver height and coracoacromial ligament distance. This aids surgeons in safely planning coracoid osteotomy and bone grafting procedures.
Area of Science:
- Orthopedic Surgery
- Anatomy
- Surgical Planning
Background:
- Coracoid transfer is a surgical technique requiring adequate bone length.
- Preventing coracoclavicular ligament injury during coracoid transfer is crucial.
- Soft tissue attachments on the coracoid process can influence bone graft availability.
Purpose of the Study:
- To investigate the relationship between available bone length for coracoid transfer and specific anatomical landmarks.
- To determine if cadaver height and soft tissue attachments predict sufficient bone length for coracoid transfer.
Main Methods:
- Measurement of distances from the coracoid tip to the distal coracoclavicular ligament attachment and coracoacromial ligament/pectoralis minor margins.
- Inclusion of 28 Japanese cadaveric shoulders (19 male, 9 female).
Main Results:
- Mean available bone length for coracoid transfer was 24.8 ± 3.4 mm.
- Significant differences in length observed between male (26.0 ± 2.9 mm) and female (22.2 ± 3.0 mm) subjects.
- Positive correlations found between transfer length and cadaver height (r=0.48) and distance to anterior coracoacromial ligament attachment (r=0.63).
Conclusions:
- Cadaver height and anterior coracoacromial ligament distance are significant predictors of available bone length for coracoid transfer.
- Findings assist surgeons in preoperative planning for safe coracoid osteotomy and bone graft harvesting.
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