Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance
Introduction: Suprascapular notch is present at the lateral part of the superior border of scapula which is bridged by superior transverse scapular ligament. The suprascapular nerve runs below the ligament and the transverse scapular vessels over it. The ligament sometimes becomes ossified and i...
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JCDR Research and Publications Pvt. Ltd.
2021-10-01
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| Series: | International Journal of Anatomy Radiology and Surgery |
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| author | BANANI KUNDU PALLAB KUMAR SAHA BILESWAR MISTRY TANUSHREE ROY |
| author_facet | BANANI KUNDU PALLAB KUMAR SAHA BILESWAR MISTRY TANUSHREE ROY |
| author_sort | BANANI KUNDU |
| collection | DOAJ |
| description | Introduction: Suprascapular notch is present at the lateral part
of the superior border of scapula which is bridged by superior
transverse scapular ligament. The suprascapular nerve runs
below the ligament and the transverse scapular vessels over
it. The ligament sometimes becomes ossified and impinges the
underlying nerve which causes paralysis of both supraspinatus
and infraspinatus muscles.
Aim: To study the morphological variation of suprascapular
notches in dry human scapulae.
Materials and Methods: This observational cross-sectional
study was carried out on 102 adult dry human scapulae (62 right,
40 left) collected from the 1st year MBBS students of different
Medical colleges of West Bengal from August 2020 to March
2021. The shapes of suprascapular notch, presence of ossified
ligaments were observed. Superior Transverse Diameter (STD),
Middle Transverse Diameter (MTD), Maximum Depth (MD) of
the suprascapular notch, distance from the deepest point of
suprascapular notch to supraglenoid tubercle and distance
between the spinoglenoid notch to the posterior rim of glenoid
cavity were measured and statistically analysed. Classification
of the suprascapular notch was done based on Rengachary
classification.
Results: Type III notch was most common (n=52). One scapula
had small U-shaped notch with lateral part of the ligament
ossified and another had U-shaped notch with both medial and
lateral part of the ligament ossified but they failed to join. In Type
I and Type VI there were no such diameters like STD or MTD but
for other types STD was more than MTD. The distance between
suprascapular notch and supraglenoid tubercle was variabletype VI had minimum and type I had the maximum distance.
The distance between the medial wall of the spinoglenoid notch
and the posterior rim of glenoid cavity was least in type I and
highest in type III.
Conclusion: This study showed that type III was the most
common suprascapular notch. The present study also compared
the findings with other previous studies and found that percentage
of presence of suprascapular foramen in this eastern Indian
population was higher than southern Indian population. |
| first_indexed | 2024-04-11T17:15:56Z |
| format | Article |
| id | doaj.art-7f5bd0c5066d494ca8c4ad95569cc22f |
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| issn | 2277-8543 2455-6874 |
| language | English |
| last_indexed | 2024-04-11T17:15:56Z |
| publishDate | 2021-10-01 |
| publisher | JCDR Research and Publications Pvt. Ltd. |
| record_format | Article |
| series | International Journal of Anatomy Radiology and Surgery |
| spelling | doaj.art-7f5bd0c5066d494ca8c4ad95569cc22f2022-12-22T04:12:41ZengJCDR Research and Publications Pvt. Ltd.International Journal of Anatomy Radiology and Surgery2277-85432455-68742021-10-011004343710.7860/IJARS/2021/49916:2702Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical SignificanceBANANI KUNDU0PALLAB KUMAR SAHA1BILESWAR MISTRY2TANUSHREE ROY3Associate Professor, Department of Anatomy, Deben Mahata Government Medica College and Hospital, Purulia, West Bengal, India.Associate Professor, Department of Anatomy, Nil Ratan Sircar Medical College and Hospital, Kolkata, West Bengal, India.Assistant Professor, Department of Anatomy, Bankua Sammilani Medical College and Hospital, Bankura, West Bengal, India.Demonstrator, Department of Anatomy, RG Kar Medical College and Hospital, Kolkata, West Bengal, India.Introduction: Suprascapular notch is present at the lateral part of the superior border of scapula which is bridged by superior transverse scapular ligament. The suprascapular nerve runs below the ligament and the transverse scapular vessels over it. The ligament sometimes becomes ossified and impinges the underlying nerve which causes paralysis of both supraspinatus and infraspinatus muscles. Aim: To study the morphological variation of suprascapular notches in dry human scapulae. Materials and Methods: This observational cross-sectional study was carried out on 102 adult dry human scapulae (62 right, 40 left) collected from the 1st year MBBS students of different Medical colleges of West Bengal from August 2020 to March 2021. The shapes of suprascapular notch, presence of ossified ligaments were observed. Superior Transverse Diameter (STD), Middle Transverse Diameter (MTD), Maximum Depth (MD) of the suprascapular notch, distance from the deepest point of suprascapular notch to supraglenoid tubercle and distance between the spinoglenoid notch to the posterior rim of glenoid cavity were measured and statistically analysed. Classification of the suprascapular notch was done based on Rengachary classification. Results: Type III notch was most common (n=52). One scapula had small U-shaped notch with lateral part of the ligament ossified and another had U-shaped notch with both medial and lateral part of the ligament ossified but they failed to join. In Type I and Type VI there were no such diameters like STD or MTD but for other types STD was more than MTD. The distance between suprascapular notch and supraglenoid tubercle was variabletype VI had minimum and type I had the maximum distance. The distance between the medial wall of the spinoglenoid notch and the posterior rim of glenoid cavity was least in type I and highest in type III. Conclusion: This study showed that type III was the most common suprascapular notch. The present study also compared the findings with other previous studies and found that percentage of presence of suprascapular foramen in this eastern Indian population was higher than southern Indian population.http://www.ijars.net/articles/PDF/2702/49916_CE[Ra1]_F(SHU)_PF1(AKA_SHU)_PFA(AKA_KM)_PN(KM).pdfentrapment neuropathymorphologyrengachary classificationsuprascapular nerve |
| spellingShingle | BANANI KUNDU PALLAB KUMAR SAHA BILESWAR MISTRY TANUSHREE ROY Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance International Journal of Anatomy Radiology and Surgery entrapment neuropathy morphology rengachary classification suprascapular nerve |
| title | Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance |
| title_full | Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance |
| title_fullStr | Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance |
| title_full_unstemmed | Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance |
| title_short | Morphological Variation of Suprascapular Notch in Population of Eastern India and its Clinical Significance |
| title_sort | morphological variation of suprascapular notch in population of eastern india and its clinical significance |
| topic | entrapment neuropathy morphology rengachary classification suprascapular nerve |
| url | http://www.ijars.net/articles/PDF/2702/49916_CE[Ra1]_F(SHU)_PF1(AKA_SHU)_PFA(AKA_KM)_PN(KM).pdf |
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