Arch of cricoid cartilage anatomical variation: morphological and radiological aspects.

The cricoid cartilage serves as an anatomical reference for several surgical procedures for access to the airway. Additionally, it serves as an attachment point for muscles that move the vocal folds. We present a case where the cricoid cartilage arch is divided into distinct superior and inferior arches, with a fibrous membrane between them.

Comparison of methods of measurement of the finger flexor muscles' strength through dynamometry and modified manual sphygmomanometer.

Objective: To evaluate the reproducibility of the modified sphygmomanometer compared to hand dynamometer to measure muscle strength of the flexor muscles of fingers.

Methods: We assessed 40 healthy volunteers of both genders, aged between 20 and 55 years, who underwent the muscle strength test in the finger flexor muscles on both hands using two instruments for which the comparison was made between them.

Results: After statistical analysis by the paired Student's ttest, there was no significant difference between the values obtained in modified sphygmomanometer and hand dynamometer tests in relation to right and left sides (p > 0.

Experimental evaluation of 3-dimensional kinematic behavior of the cruciate ligaments.

Purpose: The purpose of this study was to evaluate a low-cost and easily reproducible technique for biomechanical studies in cadavers. In this kind of study, the natural effect of loading of the joint and shear forces are not taken into account. The objective is to describe the plastic deformation of the ligaments into 3-dimensional space.