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Nonunion of the coracoid process: a systematic review
Kiyohisa Ogawa1, Noboru Matsumura2, Atsushi Yoshida3
1Department of Orthopedic Surgery, Eiju General Hospital, 2-23-16 Higashi-Ueno, Taito-ku, Tokyo, 110-8645, Japan. ogawa51@jcom.home.ne.jp.
Coracoid nonunion (CN) is often asymptomatic, with satisfactory outcomes achieved by treating concurrent injuries. If symptoms arise, determine the cause to guide treatment for coracoid process fractures.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Anatomy
Background:
- Coracoid process fractures (CN) are rare, with limited research on nonunion and its management.
- No standardized treatment protocol exists for coracoid nonunion.
Purpose of the Study:
- To review existing literature on coracoid nonunion (CN).
- To analyze patient characteristics, fracture types, and outcomes of CN.
- To inform treatment strategies for coracoid nonunion.
Main Methods:
- Systematic literature search of PubMed and Scopus for coracoid fracture articles.
- Inclusion of English full-text articles with patient data and images.
- Classification of fractures using Ogawa's and Eyres' systems.
Main Results:
- Thirty cases of coracoid nonunion (CN) in 29 patients were identified.
- Most CN cases were associated with other shoulder girdle injuries.
- Oversight and conservative treatment were common causes of CN; most cases were asymptomatic or had insignificant symptoms.
Conclusions:
- Coracoid nonunion (CN) is frequently asymptomatic, and concurrent injuries often dictate patient outcomes.
- Treatment should focus on associated injuries, addressing CN symptoms only if they are clearly attributable to the nonunion itself.
- Careful evaluation of symptom mechanism is crucial for guiding CN treatment decisions.
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