A Study of Sulcus Intertubercularis and Its Clinical Importance
European Journal of Molecular & Clinical Medicine,
2022, Volume 9, Issue 3, Pages 1659-1664
AbstractBackground: Sulcus intertubercularis(Intertubercular sulcus) is a groove present
between the greater tubercle and the lesser tubercle of the humerus. The morphometric
variations and the bony abnormalities of the intertubercular sulcus can predispose to
biceps tendon lesion present in it.
Aim:To study the morphometry of the intertubercular sulcus and to find the incidence
of the supratubercular ridge of Meyer, bony spur and the ossified transverse humeral
ligament in the population of Tamilnadu.
Materials and Methods: This descriptive cross-sectional was done in 102 dry humerus
bone (48 Right & 54 Left) from the Department of Anatomy, Government Medical
College Pudukkottai, Tamilnadu. The parameters like length, width and the depth of
the intertubercular sulcus were measured with the help of digital caliper.The bony
variation like supratubercular ridge of Meyer and the bony abnormalities around the
sulcus like bony spur from the wall and the floor of the sulcus, ossified transverse
humeral ligament were also noted. The mean values, standard deviation and the range
were calculated using SPSS statistical software (version 22.0).
Results: The mean length of the intertubercular sulcus was 84±0.9mmon the right side
and 85±1mm on the left side. The mean width of the intertubercular sulcus was
7.7±1.7mmon the right side and 8.0±1.7mm onthe left side. The mean depth of the
intertubercular sulcus was 4.5±0.9mmon the right side and 4.6±1.2mmon the left side.
The bony spur and the supratubercular ridge of Meyer were noted in 1.7% and 6.5% of
the bones studiedrespectively. The ossified transverse humeral ligament was seen only
in one humerus bone.
Conclusion: The morphometric parameters of the intertubercular sulcus in the
population of Tamilnadu were reported in our study. The supratubercular ridge of
Meyer was noted only in the wide and shallow groove, to prevent the medial dislocation
of the biceps tendon. The incidence of spurs was noted only in 1.7% of the bone studied,
which indicates its minimal role in biceps lesions. Our study data canhelpthe radiologist
and the orthopedic surgeons to diagnose and to treat the biceps tendon lesions.
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