ABSTRACT
Background: Cranial sutures and their evolution is interesting in the field of cranial growing and shaping. It is adentate suture extending from nasion to bregma. Metopic suture normally closes at 1 – 3 yrs, but is allowed upto 8 yrs. Incidence varies in different races from 1% - 12% .Aim: The present study was done to know the incidence of Metopic suture in south Indian skulls.Materials and Methods: 100 skulls from the Anatomy Dept museum at Shridevi Institute of Medical SciencesTumkur were collected for the present study. The skulls with persistent metopic suture were thoroughly observed.Results: Metopic suture was present in 38%. Complete suture was seen in 3% and incomplete in 35%.Among the3 complete sutures one was linear and continue with sagittal suture measuring 12.3 cm and 2 were H shapedmeasuring 11.0 cm and 12.1 cm. Incomplete sutures were classified depending on the shape U, V, Y and linear.Linear suture was seen in 26 skulls, U shape in 4 skulls, V shape 4 skulls, Y shape 1 skull.Conclusion: The presence of metopic suture is important from a clinical point of view. It must be included indifferential diagnosis of suspected skull fracture particularly frontal bone. It is not a pathological entity butmost certainly should be noted as an incidental finding on an X ray. The suture is best identified in A -P view ofskull
ABSTRACT
Background: Suprascapular nerve most commonly compressed at the level of suprascapular notch (SSN) andspinoglenoid notch. Variation in morphological features of SSN and spinoglenoid notch plays a crucial role insuprascapular nerve entrapment syndrome.Objective: Present study was conducted to find out the variation in morphology and dimension of SSN and todetermine posterior safe zone for shoulder joint procedures from posterior approach.Materials and Methods: In the present study 83 dry scapulae of south Karnataka region were studied andclassified the SSN based on various shapes according to Iqbal et al and measurements according to Natis et al,along with this, the mean distance from SSN to supraglenoid tubercle and mean distance between posterior rimof glenoid cavity and medial wall of spinoglenoid notch at the base of scapular spine were also measured .Result: Based on Iqbal et al classification ‘U’ shaped notch found to be more common (43.37%) and ‘V’ shapednotch and indentation found to be least common(3.6%). Complete ossification were observed in 3 scapulaebone(3.6%). Based on Natsis classification most common was found to be type –II (TD>VL) (84%) and type VI andIV were not observed. Mean distance between SSN and supraglenoid tubercle was 31.08 mm and mean distancebetween posterior rim of glenoid cavity and medial wall of spinoglenoid notch at base of scapular spine was14.26mm.Conclusion: Since variation in morphologoy of suprascapular notch and ossification of superior transversesuprascapular ligament(STSL) can be a factor for suprascapular nerve entrapment syndrome and safe zone fordifferent population varies. Hence knowing variations in shape and size of SSN, safe zone for different populationis helpful. So this study may be useful for clinicians for better diagnosis and management. Still more populationspecific studies are required related to the morphology of suprascapular notch.