Rotational Shift of Proximal Carpal Row and it's Correlation with Global Wrist Joint Laxity

Ashish Agarwal, Varun Agarwal
2020 International Journal of Contemporary Medical Research [IJCMR]  
As the wrist moves to ulnar deviation, the proximal carpal row undergoes radial translation, dorsal rotation and supination. Similarly, the radial deviation involves ulnar translation of the proximal carpal row, its volar rotation and pronation. These combined movements of the proximal carpal row are called rotational shift of the carpus. Study aimed to quantify the rotational shift of the proximal carpal row during ulnar or radial deviation of the wrist. Material and methods: The proposed
more » ... : The proposed study was a prospective study conducted in the Department of Orthopedics, RMCH, Bareilly, UP comprising 100 healthy volunteers with equal sex ration who never had any symptoms pertaining to their wrist joint. PA and lateral radiograph were obtained in full radial and ulnar deviation. A custom-made positioning device was used to ensure proper placement of the hand and wrist during the examination. Results: In the present study, we observed that the radioscaphoid angle in radiation deviation varied from 50 to 85 degree with mean of 68.96 degree. Radioulnate angle in radial deviation varied from -2 to 45 degree with mean of 17.79 degree. Radioscaphoid angle in ulnar deviation varied from 10 to 70 degree with mean of 39.97 degree. Radioulnate angle in ulnar deviation varied from -3 to -38 degree with mean of -17.15 degree. Conclusion: Within the limitations of the present study, it can be concluded that the ulnar deviation of the wrist is seen to cause radial translation ad dorsal rotation of the proximal carpal row. Similarly, the radial deviation was seen to cause ulnar translation and volar rotation of the proximal carpal row.
doi:10.21276/ijcmr.2020.7.3.43 fatcat:6dr7gaioi5gbldqmezia6f5bkq