Posterolateral rotatory instability of the elbow with insufficient coronoid process of the ulna: a report of 3 patients

Congruity of the ulnohumeral joint, especially its anterior portion, is an important stabilizer of the elbow joint. We report on 3 patients in whom the insufficiency of the coronoid process, such as nonunion or a flattened trochlear notch, was associated with posterolateral rotatory instability of t...

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Bibliographic Details
Published inThe Journal of hand surgery (American ed.) Vol. 32; no. 2; p. 236
Main Authors Okazaki, Masato, Takayama, Shinichiro, Seki, Atsuhito, Ikegami, Hiroyasu, Nakamura, Toshiyasu
Format Journal Article
LanguageEnglish
Published United States 01.02.2007
Subjects
Adult
Bone Wires
Collateral Ligaments - physiopathology
Collateral Ligaments - surgery
Elbow Joint - physiopathology
Elbow Joint - surgery
Fractures, Ununited - physiopathology
Fractures, Ununited - surgery
Humans
Humerus - transplantation
Ilium - transplantation
Joint Instability - physiopathology
Joint Instability - surgery
Male
Rotation
Treatment Outcome
Ulna - physiopathology
Ulna - surgery
Ulna Fractures - physiopathology
Ulna Fractures - surgery
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Summary:Congruity of the ulnohumeral joint, especially its anterior portion, is an important stabilizer of the elbow joint. We report on 3 patients in whom the insufficiency of the coronoid process, such as nonunion or a flattened trochlear notch, was associated with posterolateral rotatory instability of the elbow. In our opinion, addressing the anterior bony integrity of the ulnohumeral joint, in addition to the ligamentous stabilizer and mechanical axis, is essential to achieve stability in these circumstances. This issue is discussed with a review of the literature.
ISSN:0363-5023
DOI:10.1016/j.jhsa.2006.11.001