ABSTRACT
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.
ABSTRACT
Introduction: Lumbar vertebral column is exposed to various kinds of stress during locomotion. In erect posture weight transmitted through posterior part including pedicles. This causes deformities of this region as the age advances in many individuals. Proper correction of deformity is challenging. There have been advances in spinal fusion procedures and interspinous implantation of devices including pedicle screws. Use of unsuitable dimensions of screw may cause problem of destruction of pedicle. Correct metricular data of pedicle is necessary for choice of appropriate screw size. Aims and Objectives: 1) To measure the various dimensions in Indian adult human lumbar vertebral pedicles. 2) To prepare data of lumbar pedicles useful in various surgical procedures. Material and Methods: A Cross-sectional study was done on 45 dry, fully ossified human lumbar vertebral sets. The bones were grouped into typical (L1 to L4) and atypical (L5) lumbar vertebrae. The dimensions measured included pedicle length, height, thickness, axial length, transverse and sagittal angles. ‘Digital Vernier Caliper’ and Protractor were used. The data was analyzed statistically. Results: The mean length, height and thickness of typical vertebral pedicles increases gradually. In atypical (L5), pedicle thickness suddenly increases. The transverse angle of pedicle elevated gradually from L1 to L4 but at L5, it abruptly increased. Conclusions: The study reported significant differences in several dimensions of pedicles of typical as well as atypical lumbar vertebrae. These differences should be considered by neurosurgeons.
ABSTRACT
Introduction: Low backache is one of the most common symptoms of lumbar canal stenosis and it developed aninterest among anatomists to do osteological analysis of lumbar canal. The aim of the current study was tocreate the morphometric database of lumbar canal dimensions in context of its applied clinical implications.Materials and Methods: A dry bone study was carried out on 47 adult human lumbar vertebral sets obtained fromvarious medical colleges in Pune District of Maharashtra. Anteroposterior (LCAP) and transverse (LCT) diametersof lumbar canal were measured by ‘Digital Vernier Caliper with 0.01 mm precision’. The data analysis was donein SPSS Version 20 and ‘ANOVA’ test was applied to evaluate statistical differences.Results: Lumbar canal antero-posterior (LCAP) diameters decreased from L1 to L5 vertebrae whereas there wasgradual increase in Lumbar canal transverse (LCT) diameter from first to fifth lumbar vertebra.Conclusion: The present study reported statistically significant differences in the dimensions of lumbar canal ofL1 to L5 in Indian population. This morphometric baseline data can be utilized in surgical management of lowback pain as a result of lumbar canal stenosis.