RESUMO
Background: The existing conclusive data show variations in the subtalar joint regarding its morphological features and articulation of bones. Inadequate studies exist on the morphometry of articular surfaces of the talus which may help in surgical interventions and development of implants and prostheses in diverse populations. Purpose: The current study was undertaken to conduct a bilateral comparison of parameters of articulating surfaces of talus. Material and Methods: An observational study design was carried out at one of the private medical colleges in the Pune district of Maharashtra. A total of 100 (fifty-one from right side and forty-nine left-sided tali) dry human talar bones were collected and various dimensions of articular surfaces of bones were measured by Digital Vernier Caliper and Ruler. The data analysis was performed and results were tabulated and presented graphically. Results: There was a statistically significant difference (p<0.05) in bilateral measurements of lateral articular surface height (LASH) of talar bones. The difference was not significant (p>0.05) for all other parameters. Conclusions: The study inferences can be applied as a guide and baseline information for surgical measures, inflammatory disease management, and forensic anthropologists.
RESUMO
Introduction: The coraco-acromial ligament forms coraco-acromial arch along with acromion and coracoidprocess of scapula which prevent the superior humeral head displacement. It plays a key role in the pathoetiology of sub-acromial impingement syndrome when there are no significant bony abnormalities.Material and Methods: In the present study we have studied 120 formalin preserved upper limbs (right: 60; left:60) of unknown age and sex. Each shoulder was dissected carefully to see coraco-acromial ligament. The CALwas identified with careful blunt dissection to prevent overlooking any thinner bands. We observed the numberof bands present and shape of the ligament. Photographs were taken.Results: Different morphological subtypes of coraco-acromial ligament were observed and classified accordingto Kesmezacar et al. Type II (28.33 %) was the most common then type I (25 %), type IV (17.5 %), type V (15 %), typeIII (11.66%). Anterolateral band of ligament extended antero-laterally to form coracoacromial falx in 51%.Discussion: Coraco-acromial ligament shows different morphological variations in Indian population. Knowledgeof morphological variations of coraco-acromial ligament will be helpful for orthopedic surgeon for clinical andintraoperative decision while dealing with sub-acromial impingement syndrome.