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An accessory muscle belly or an accessory muscle head? An unusual arrangement of muscles in the anterior compartment of the forearm
K. Gabríková, D. Kachlík, M. Belbl, V. Kunc
Language English Country Germany
Document type Case Reports, Journal Article
NLK
ProQuest Central
from 1997-01-01 to 1 year ago
Medline Complete (EBSCOhost)
from 2003-04-01 to 1 year ago
Nursing & Allied Health Database (ProQuest)
from 1997-01-01 to 1 year ago
Health & Medicine (ProQuest)
from 1997-01-01 to 1 year ago
- MeSH
- Muscle, Skeletal anatomy & histology MeSH
- Humans MeSH
- Musculoskeletal Abnormalities * MeSH
- Thumb MeSH
- Forearm innervation MeSH
- Fingers MeSH
- Tendons MeSH
- Carpal Tunnel Syndrome * MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Case Reports MeSH
PURPOSE: Knowledge of the unusual arrangement of the flexor pollicis longus (FPL) muscle is important as the variable tendon may be a rare cause of carpal tunnel syndrome. METHODS: During a routine dissection at the Department of Anatomy, an unusual formation of the FPL muscle was observed in a formalin embalmed Central European cadaver. RESULTS: This report presents a variation of the FPL muscle, where the muscle split and formed a separate accessory head inserting into the first lumbrical muscle. Moreover, a tendinous interconnection was present between the FPL muscle tendon and the tendon of the aberrant muscle head. CONCLUSION: The cases described by previous literature, concerning the Linburg-Comstock variation or the accessory head of the first lumbrical muscle originating from the FPL muscle, are closest to the present case. Such variation has a clinical significance ranging from the functional limitation of the thumb and index finger movement to the potential median nerve compression.
References provided by Crossref.org
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- $a PURPOSE: Knowledge of the unusual arrangement of the flexor pollicis longus (FPL) muscle is important as the variable tendon may be a rare cause of carpal tunnel syndrome. METHODS: During a routine dissection at the Department of Anatomy, an unusual formation of the FPL muscle was observed in a formalin embalmed Central European cadaver. RESULTS: This report presents a variation of the FPL muscle, where the muscle split and formed a separate accessory head inserting into the first lumbrical muscle. Moreover, a tendinous interconnection was present between the FPL muscle tendon and the tendon of the aberrant muscle head. CONCLUSION: The cases described by previous literature, concerning the Linburg-Comstock variation or the accessory head of the first lumbrical muscle originating from the FPL muscle, are closest to the present case. Such variation has a clinical significance ranging from the functional limitation of the thumb and index finger movement to the potential median nerve compression.
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