Anatomical Parameters Of Radial Head: An Aid For Prosthesis Design

ABSTRACT

Introduction: Radial head and neck fractures are one of the commonly encountered traumatic injuries. Commonlyproposed management includes radial head prosthesis implant or open reduction and internal fixation dependingon type of injury. Radial head measurements are very valuable in reconstruction of radial head. Appropriateanatomy of radial head will help in preventing postoperative stiffness and enable good rehabilitation.Aims and objectives: To estimate and compare radial head parameters of proximal end of right and left radii.Materials and Methods: Radial head measurements -Height of radial head in medial (MH) and lateral (LH) side,Antero posterior diameter (APD) and transverse diameters (TD) of radial head, Thickness of ventral (TVC), lateral(TLC) and dorsal (TDC) curves and depth of articular facet (D) were measured with the help of digital caliper.Statistical analysis was done using SPSS software. Difference in sides was measured using independent sampleT test (p value < 0.05 considered significant).Results: Mean values of Radial head measurements were APD19.81mm, TD18.925mm, MH9.795mm,LH7.735mm,TVC5.05,TDC3.695,TLC3.64,D1.735.There was difference in values of TLC between right and leftsides.Conclusion: Mean values of radial head measurements were comparable with previous studies. Side differenceshould be considered while implanting prosthesis on affected side.