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Papers by Dr. P.H. Dissanayake

Research paper thumbnail of Bilateral absence of musculocutaneous nerve in a cadaveric specimen

Sri Lanka Anatomy Journal

Knowledge of the normal course and distribution of the nerves of the brachial plexus in the axill... more Knowledge of the normal course and distribution of the nerves of the brachial plexus in the axilla and arm, and of its possible variations, is essential for the proper management of upper limb nerve injuries, which is a relatively common occurrence in the clinical setup. Bilateral absence of the musculocutaneous nerve was observed during routine dissection of a female cadaver. The muscles of the flexor compartment of the arm were supplied by the median nerve bilaterally.The present case report should elucidate this variation and should aid in applying this knowledge in the clinical setup.

Research paper thumbnail of Integration of Traditional and Innovative Methods in Anatomy Dissections: A Sri Lankan Experience

South-East Asian Journal of Medical Education

Introduction: Routine methods of teaching gross anatomy including cadaver dissections have been a... more Introduction: Routine methods of teaching gross anatomy including cadaver dissections have been a keystone of the anatomy curriculum and certain difficulties have led medical educationists to explore teaching using modern technology. This study aims to share the institutional experience of incorporating new methods into routine dissections at the Department of Anatomy, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri Lanka.Methodology: Prior to dissections, recommended anatomy 3D software and videos were shown in LED panels. Mock spots were conducted weekly. Applied anatomy sessions were conducted by clinicians. Ultra sound scan (USS) based teaching sessions were conducted by a consultant radiologist. Another study area with multiple illuminators with radiological films was present. Routine feedback was taken from students.Results: The use of LED panels for teaching was found to be helpful by most (82.6%) students. A majority (84%) also found that mock spots were ...

Research paper thumbnail of Chronic neck pain and its association with the angle of the cervical curve

Sri Lanka Anatomy Journal

Objective: This study was conducted to investigate the relationship between the angle of the cerv... more Objective: This study was conducted to investigate the relationship between the angle of the cervical curve and the presence of chronic neck pain. Material and Methods: Case control study was conducted among 363 patients, (females 76.9%), who had neck pain (>3 months) and 349 individuals, (females 58.5%), with no neck pain, aged 20-69 years. Angle of the cervical curve was measured in lateral x-rays of cervical spine using AutoCAD 2014 and cross checked by two Consultant Radiologists. Angle of the cervical curve was categorized as 35°-45°-normal lordosis, <35°-hypolordosis and >45°-hyperlordosis. Percentages of each category were calculated.Results: Among the patients with chronic neck pain, 44.9% (n=163) had hypolordosis, 49% (n=178) had hyperlordosis and 6.1% (n=22) had the normal lordosis. Among the individuals with no neck pain, the majority (80.8%, n=282) had the normal lordosis, 12.3% (n=43) had hypolordosis and 6.9% (n=24) had hyperlordosis. Chi square test showed a ...

Research paper thumbnail of Passive Mechanical Characterization of Human Skeletal Muscle Rectus Femoris of Sri Lankan Test Subjects

Engineer: Journal of the Institution of Engineers, Sri Lanka

Research paper thumbnail of Passive Mechanical Characterization of Human Skeletal Muscle Rectus Femoris of Sri Lankan Test Subjects

Engineer: Journal of the Institution of Engineers, Sri Lanka

Research paper thumbnail of Association between pain and disability in patients with chronic mechanical low back pain

Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association... more Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association, 6th-8th July 2015 Colombo, Sri Lanka

Research paper thumbnail of Study of Renal Artery Patterns in a Sri Lankan Population

Sri Lanka Anatomy Journal, 2018

Research paper thumbnail of Association between pain and disability in patients with chronic mechanical low back pain

Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association... more Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association, 6th-8th July 2015 Colombo, Sri Lanka

Research paper thumbnail of Variants of acan gene associate with severity of lumbar disc degeneration

Poster Presentation Abstract (PP 66), 129th Anniversary International Medical Congress, Sri Lanka... more Poster Presentation Abstract (PP 66), 129th Anniversary International Medical Congress, Sri Lanka Medical Association, 25-27 July 2016 Colombo, Sri Lanka

Research paper thumbnail of A Morphological and Morphometric Study of the Human Renal Vessels

Research paper thumbnail of Anthropometric patterns among patients with chronic mechanical low back pain

Poster Presentation Abstract (PP41), 127th Annual Scientific Sessions, Sri Lanka Medical Associat... more Poster Presentation Abstract (PP41), 127th Annual Scientific Sessions, Sri Lanka Medical Association, 2014 Colombo, Sri Lanka

Research paper thumbnail of Learning Styles among Medical Undergraduates and Pre-Intern Doctors of University of Sri Jayewardenepura

Background: Medical education is an ever evolving process. Gaining required knowledge, attitudes ... more Background: Medical education is an ever evolving process. Gaining required knowledge, attitudes and skills within a stipulated period of time to become a competent doctor is a challenge. The shift from teacher-centred and subject-based teaching to the interactive, problem-based, student-centred learning is an important concept in the medical education. This study evaluates the learning styles (visual, auditory, read/write and kinaesthetic-VARK) among medical undergraduates and pre-intern doctors.

Research paper thumbnail of Bony landmarks to identify the Stylomastoid foramen in humans - A preliminary study

Research paper thumbnail of Pneumatization of Anterior and Posterior clinoid processes - A preliminary study

Sri Lanka Anatomy Journal, Dec 3, 2018

Research paper thumbnail of Intensity of neck pain and its association with anthropometric measurements

Sri Lanka Anatomy Journal

Research paper thumbnail of Occupational eye injuries; are they preventable?

Sri Lanka Anatomy Journal

Research paper thumbnail of Terminal triplication of the left vertebral artery: a unique variation

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2007

This report describes a unique case of triplication of the terminal left vertebral artery, formin... more This report describes a unique case of triplication of the terminal left vertebral artery, forming the basilar artery in a 75-year-old male. CT angiography of cranio-cervical vessels also demonstrated the right vertebral artery originating from the right common carotid and an aberrant right subclavian artery.To the best of our knowledge this is the first report of a variation of this nature. The embryology and the clinical importance are discussed.

Research paper thumbnail of Bilateral absence of musculocutaneous nerve in a cadaveric specimen

Sri Lanka Anatomy Journal

Knowledge of the normal course and distribution of the nerves of the brachial plexus in the axill... more Knowledge of the normal course and distribution of the nerves of the brachial plexus in the axilla and arm, and of its possible variations, is essential for the proper management of upper limb nerve injuries, which is a relatively common occurrence in the clinical setup. Bilateral absence of the musculocutaneous nerve was observed during routine dissection of a female cadaver. The muscles of the flexor compartment of the arm were supplied by the median nerve bilaterally.The present case report should elucidate this variation and should aid in applying this knowledge in the clinical setup.

Research paper thumbnail of Integration of Traditional and Innovative Methods in Anatomy Dissections: A Sri Lankan Experience

South-East Asian Journal of Medical Education

Introduction: Routine methods of teaching gross anatomy including cadaver dissections have been a... more Introduction: Routine methods of teaching gross anatomy including cadaver dissections have been a keystone of the anatomy curriculum and certain difficulties have led medical educationists to explore teaching using modern technology. This study aims to share the institutional experience of incorporating new methods into routine dissections at the Department of Anatomy, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri Lanka.Methodology: Prior to dissections, recommended anatomy 3D software and videos were shown in LED panels. Mock spots were conducted weekly. Applied anatomy sessions were conducted by clinicians. Ultra sound scan (USS) based teaching sessions were conducted by a consultant radiologist. Another study area with multiple illuminators with radiological films was present. Routine feedback was taken from students.Results: The use of LED panels for teaching was found to be helpful by most (82.6%) students. A majority (84%) also found that mock spots were ...

Research paper thumbnail of Chronic neck pain and its association with the angle of the cervical curve

Sri Lanka Anatomy Journal

Objective: This study was conducted to investigate the relationship between the angle of the cerv... more Objective: This study was conducted to investigate the relationship between the angle of the cervical curve and the presence of chronic neck pain. Material and Methods: Case control study was conducted among 363 patients, (females 76.9%), who had neck pain (>3 months) and 349 individuals, (females 58.5%), with no neck pain, aged 20-69 years. Angle of the cervical curve was measured in lateral x-rays of cervical spine using AutoCAD 2014 and cross checked by two Consultant Radiologists. Angle of the cervical curve was categorized as 35°-45°-normal lordosis, <35°-hypolordosis and >45°-hyperlordosis. Percentages of each category were calculated.Results: Among the patients with chronic neck pain, 44.9% (n=163) had hypolordosis, 49% (n=178) had hyperlordosis and 6.1% (n=22) had the normal lordosis. Among the individuals with no neck pain, the majority (80.8%, n=282) had the normal lordosis, 12.3% (n=43) had hypolordosis and 6.9% (n=24) had hyperlordosis. Chi square test showed a ...

Research paper thumbnail of Passive Mechanical Characterization of Human Skeletal Muscle Rectus Femoris of Sri Lankan Test Subjects

Engineer: Journal of the Institution of Engineers, Sri Lanka

Research paper thumbnail of Passive Mechanical Characterization of Human Skeletal Muscle Rectus Femoris of Sri Lankan Test Subjects

Engineer: Journal of the Institution of Engineers, Sri Lanka

Research paper thumbnail of Association between pain and disability in patients with chronic mechanical low back pain

Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association... more Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association, 6th-8th July 2015 Colombo, Sri Lanka

Research paper thumbnail of Study of Renal Artery Patterns in a Sri Lankan Population

Sri Lanka Anatomy Journal, 2018

Research paper thumbnail of Association between pain and disability in patients with chronic mechanical low back pain

Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association... more Oral Presentation Abstract(OP27), 128th Annual Scientific Sessions, Sri Lanka Medical Association, 6th-8th July 2015 Colombo, Sri Lanka

Research paper thumbnail of Variants of acan gene associate with severity of lumbar disc degeneration

Poster Presentation Abstract (PP 66), 129th Anniversary International Medical Congress, Sri Lanka... more Poster Presentation Abstract (PP 66), 129th Anniversary International Medical Congress, Sri Lanka Medical Association, 25-27 July 2016 Colombo, Sri Lanka

Research paper thumbnail of A Morphological and Morphometric Study of the Human Renal Vessels

Research paper thumbnail of Anthropometric patterns among patients with chronic mechanical low back pain

Poster Presentation Abstract (PP41), 127th Annual Scientific Sessions, Sri Lanka Medical Associat... more Poster Presentation Abstract (PP41), 127th Annual Scientific Sessions, Sri Lanka Medical Association, 2014 Colombo, Sri Lanka

Research paper thumbnail of Learning Styles among Medical Undergraduates and Pre-Intern Doctors of University of Sri Jayewardenepura

Background: Medical education is an ever evolving process. Gaining required knowledge, attitudes ... more Background: Medical education is an ever evolving process. Gaining required knowledge, attitudes and skills within a stipulated period of time to become a competent doctor is a challenge. The shift from teacher-centred and subject-based teaching to the interactive, problem-based, student-centred learning is an important concept in the medical education. This study evaluates the learning styles (visual, auditory, read/write and kinaesthetic-VARK) among medical undergraduates and pre-intern doctors.

Research paper thumbnail of Bony landmarks to identify the Stylomastoid foramen in humans - A preliminary study

Research paper thumbnail of Pneumatization of Anterior and Posterior clinoid processes - A preliminary study

Sri Lanka Anatomy Journal, Dec 3, 2018

Research paper thumbnail of Intensity of neck pain and its association with anthropometric measurements

Sri Lanka Anatomy Journal

Research paper thumbnail of Occupational eye injuries; are they preventable?

Sri Lanka Anatomy Journal

Research paper thumbnail of Terminal triplication of the left vertebral artery: a unique variation

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2007

This report describes a unique case of triplication of the terminal left vertebral artery, formin... more This report describes a unique case of triplication of the terminal left vertebral artery, forming the basilar artery in a 75-year-old male. CT angiography of cranio-cervical vessels also demonstrated the right vertebral artery originating from the right common carotid and an aberrant right subclavian artery.To the best of our knowledge this is the first report of a variation of this nature. The embryology and the clinical importance are discussed.