Clinico-anatomical elucidation of teres minor muscle
Rotator cuff muscles (RCM) are the dynamic stabilisers of glenohumeral joint. Rotator cuff disorders are common and hence RCM have been the area of interest for researchers. Teres minor, a RCM, assists in lateral rotation at shoulder joint. Among all the RCM, anatomical variations in teres min...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Pusat Perubatan Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/16264/1/2_ms509_pdf_14636.pdf http://journalarticle.ukm.my/16264/ https://www.medicineandhealthukm.com/toc/15/2 |
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| Summary: | Rotator cuff muscles (RCM) are the dynamic stabilisers of glenohumeral joint.
Rotator cuff disorders are common and hence RCM have been the area of interest
for researchers. Teres minor, a RCM, assists in lateral rotation at shoulder joint.
Among all the RCM, anatomical variations in teres minor muscle have been least
documented in literature and hence considered as a neglected muscle. The aim of
the present study was to explore variant morphology, insertion sites and patterns
of insertion of teres minor muscle. Sixty adult embalmed human cadavers were
dissected to delineate the fibers of teres minor muscle, from their site of origin
on scapula up to the site of insertion on the humerus. Variant morphology along
with unusual pattern and site of insertion of teres minor muscle was noted in
two (3.33%) cadaveric specimens. The results of the present study highlight the
continuous phylogenetic change taking place in a RCM. Familiarity about the
variation reported is paramount for the surgeons planning rotator cuff surgery and
other invasive procedures in shoulder region. The current data will be significant for
radiologist interpreting magnetic resonance imaging scans to report post-operative
outcome of rotator cuff surgeries. |
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