Papers Published by Academic Staff

Department of Anatomy

Faculty of Medicine, University of Colombo, Sri Lanka.




Patent vitello-intestinal duct: Unusual presentation - J.Perera.

Summary - The case history of a child passing a roundworm through the umbilicus is presented. The diagnosis and management of a patent vitello intestinal duct is discussed.


The Ceylon Medical Journal: Volume 38, No 2, 1993, pp 140-142







Variability of the femoral circumflex arteries - J.Perera.


Abstract - 62 femoral triangles were dissected and the origins of the femoral circumflex vessels and the deep femoral artery were demonstrated. Variability in the origins of the femoral circumflex vessels was analysed and a significant difference between the origins was identified.

The Ceylon Journal of Medical Sciences: Volume 36, December, 1993, pp 39-42



SA nodal artery - In relation to the dominancy of coronary arteries - N.Gajamange, J.Perera .

Abstract - Eighty hearts were dissected and the right and left coronary arteries, posterior interventricular branch and the sinuatrial nodal artery were identified. `Dominancy' of the coronary arteries was determined according to the origin of the posterior interventricular branch. The origin the sinuatrial nodal artery was analysed in relation to the `dominancy' of the coronary arteries.


The Ceylon Journal of medical Sciences: Volume 37, June, 1994, pp 39-44



Aetiology, age and sex incidence of hand injuries in an emergency department - J.Perera.

Abstract - Three hundred and twenty patients with hand injuries admitted to Trauma Unit of the General Hospital Colombo were studied. Occupational injuries, home accidents and injuries due to violence and road traffic accidents were identified as the main causative factors. Incidence of hand injuries in relation to aetiological factors were analysed. Variability of the age and sex incidence within each aetiological group was studied.


The Ceylon Journal of Medical Sciences: Volume 38, 1995



Anatomy of the origin of the deep femoral artery - J.Perera.

Abstract -
Objective : To study the variability in the level of origin of the deep femoral artery in relation to the different patterns of origin of the femoral circumflex arteries.
Design : 124 femoral triangles obtained from cadavers were dissected. The origins of the circumflex femoral arteries were classified in to two groups. In group A medial and lateral circumflex arteries were arising from the deep femoral artery. In group B either one or both femoral arteries were arising from the common femoral artery. The distance of origin of the deep femoral artery from the mid point of the inguinal ligament was measured in both groups and compared.
Setting : Department of Anatomy, Faculty of Medicine, Colombo.
Results : A statistically significant difference was noted in the two groups in the level of origin of the deep femoral artery.


The Ceylon Medical Journal: Volume 40, No 4,December, 1993, pp 139-141



Pattern of tissue damage in hand trauma - J.Perera.

Abstract -
Objective : To study the pattern of tissue damage in occupational hand injuries.
Setting : Trauma and Orthopaedic Unit of the General Hospital, Colombo. Patients : 190 patients with occupational hand injuries submitted to surgery by the author were studied prospectively. The incidence of compound and simple fractures and dislocations, digital amputations, tendon injuries and skin loss were studied. The individual bones and tendons affected, the level of digital amputations and the percentage frequency of the involvement of the individual fingers were analysed.
Results : Compound fractures accounted for 42.1% of injuries and in 56.4% the distal phalanx was involved. Finger tip amputations accounted for 38.8%. Among tendon injuries flexor tendons were affected in 66.6%. The highest incidence of compound fractures(30.6%), amputations(41.1%) and skin and subcutaneous tissue loss (28.5%0 was seen in the index finger.
Conclusions : in this study
1. Compound fractures and digital amputations were the main injuries.
2. Distal phalanx is more frequently affected in compound fractures.
3. Among the amputations loss of finger tip is the commonest.
4. Flexor tendons were much more injured than the extensor tendons.
5. Index finger is the most frequently injured digit.


The Ceylon Medical Journal: Volume 41, March, 1996, pp 15-18



Inter-relatedness of the origins of the deep femoral artery and femoral circumflex arteries - J.Perera.

124 femoral regions were dissected and the origins of the deep femoral and femoral circumflex arteries were demonstrated. The specimens were grouped according to the origins of the femoral circumflex arteries.

In group A where both femoral circumflex arteries were arising from the deep femoral artery it was noted that the medial femoral circumflex artery has a more proximal origin than the lateral femoral circumflex artery.

In group B where either one or both femoral circumflex arteries were arising from the common femoral artery it was noted that the deep femoral artery originated most distally when measured from the mid point of the inguinal ligament. It was also noted that in some specimens in group B, either one or both femoral circumflex arteries were arising at the same level as the deep femoral artery. In none of the specimens the origins of the femoral circumflex arteries were distal to the origin of the deep femoral artery.


The Ceylon Journal of Medical Sciences: Volume 38, No 1, June, 1993, pp 11-14



SA nodal Artery - Its origin in relation to the dominancy of the coronary arteries - J.Perera, N,Gajamange.

Abstract -
Objective : The objective of this study is to analyse the origin of the SA nodal artery in relation to the `dominancy' of the coronary arteries.
Setting : Department of Anatomy, Faculty of Medicine, Colombo.
Material and methods : Eighty hearts of the patients who died of non-cardiac conditions were obtained from the Medico-Legal Department of the General Hospital, Colombo. A gelatin solution coloured with Giemsa stain was injected into the coronary arteries. Hearts were dissected and the right and left coronary arteries, posterior interventricular branch and the sinuatrial node identified. Coronary arteries were grouped as `dominant' or `non-dominant' depending on the origin of the posterior interventricular branch. The frequency of origin of the SA nodal artery in relation to the `dominancy' of the coronary arteries were statistically analysed.
Results : The SA nodal artery was arising from the `dominant' coronary artery in 63.15% and from the `non-dominant' coronary artery in 36.8%. The difference in the percentages were statistically non-significant.
Conclusions : The origin of the sinu atrial nodal artery is not related to the `dominancy' of the coronary arteries.


108th Anniversary Academic Sessions of the SLMA (abstract p 16)



Variability in the Origin of the deep femoral artery - J.Perera.

Abstract -
Objective : The objective is to study the variability of the origin of the deep femoral artery in relation to the different patterns of origin of the femoral circumflex arteries.
Setting : Department of Anatomy, Faculty of Medicine, Colombo.
Material and methods : Femoral regions of 124 cadavers were dissected and the origins of the deep femoral artery and the femoral circumflex arteries were demonstrated. Specimens were divided into two groups(group A and group B) according to the origins of the femoral circumflex arteries. In group A both femoral circumflex arteries were arising from the deep femoral artery and in group B one or both femoral circumflex arteries arose from the common femoral artery. The level of origin of the deep femoral artery in relation to the mid inguinal point was measured in both groups.
Results : The difference in the level of origin of the deep femoral artery in two groups was statistically different.
Conclusions : When one or both femoral circumflex arteries were arising from the common femoral artery there is a significant shift of origin of the deep femoral artery away from the point of the mid point of the inguinal ligament.


108th Anniversary Academic Sessions of the SLMA (abstract p 17)