| The extensor medii proprius and anomalous extensor tendons to the long finger. | |
| | |
MedLine Citation:
|
PMID: 1748763 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The extensor medii proprius is a muscle analogous to the extensor indicis proprius in that it has a similar origin, but inserts into the long finger. The extensor indicis et medii communis muscle is an extensor indicis proprius muscle that splits to insert into both the index and long fingers. The extensor tendons to the fingers were dissected in 58 adult hands to determine the incidence and anatomy of the extensor medii proprius and extensor indicis et medii communis. The incidence of the extensor medii proprius was 10.3% and the incidence of the extensor indicis et medii communis was 3.4% in this series. The extensor medii proprius and extensor indicis proprius muscles had a common origin in all cases. The insertion of the extensor medii proprius into the dorsal aponeurosis was palmar and ulnar to the extensor digitorum communis of the long finger, but in one case, the extensor medii proprius inserted into the deep fibrous tissue proximal to the metacarpophalangeal joint. The tendon slip of the extensor indicis et medii communis inserting into the long finger did not insert into the dorsal aponeurosis, but into the deep fibrous tissue near the metacarpophalangeal joint. Both the extensor medii proprius and the extensor indicis et medii communis may represent evolutionary remnants. Awareness of their potential presence and anatomy should be helpful in extensor identification, repair, and transfer. |
| | |
Authors:
|
H P von Schroeder; M J Botte |
Related Documents
:
|
19644033 - Isometric contractions reduce plantar flexor moment, achilles tendon stiffness, and neu... 9844973 - Macroscopic 'degeneration' of equine superficial digital flexor tendon is accompanied b... 6746403 - The structure of the external rectus eye muscles of the carpet shark cephaloscyllium is... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of hand surgery Volume: 16 ISSN: 0363-5023 ISO Abbreviation: J Hand Surg Am Publication Date: 1991 Nov |
Date Detail:
|
Created Date: 1992-01-23 Completed Date: 1992-01-23 Revised Date: 2009-06-08 |
Medline Journal Info:
|
Nlm Unique ID: 7609631 Medline TA: J Hand Surg Am Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 1141-5 Citation Subset: IM |
Affiliation:
|
Division of Orthopaedics and Rehabilitation, University of California, San Diego. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Fingers
/
abnormalities,
anatomy & histology* Humans Muscles / abnormalities, anatomy & histology* Tendons / abnormalities, anatomy & histology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Extensor mechanism of the fingers. II. Tensile properties of components.
Next Document: Results of acute zone III extensor tendon injuries treated with dynamic extension splinting.