Biomechanical Evaluation of the Medial Collateral Ligament of the Elbow*

Radiological analysis of the medial epicondyle in the adolescent throwing athlete

“…The medial epicondyle was larger on the dominant arm for 125 (80.6%) patients; the mean surface area on the dominant arm was 222.50 ± 45.77 mm 2 , while that of the non-dominant arm was 189.14 ± 39.56 mm 2 (p < 0.01). Among the three categories of medial epicondyles, separated epicondyles had the largest surface area, followed by elongated and normal epicondyles.…”

“…When the elbow is in 20°-120° of flexion, it is the UCL that resists most of the valgus stress. (2) In a throwing athlete, the abnormal repetitive stress over the medial part of the elbow is described as a whipping force. The movement starts with the elbow in acute flexion and ends with it in complete extension, with the forearm in supination or pronation and the wrist in ulnar deviation.…”

Result of Ulnar Collateral Ligament Reconstruction in Post–traumatic Valgus Instability of Elbow

“…Among them anterior bundle is the most important valgus stabiliser. 1 Anterior bundle originates from the anteroinferior portion of medial epicondyle and inserts to sublime tubercle of proximal ulna. The posterior bundle mainly resists the ulnar rotation.…”

Valgus Laxity of Elbow Joint in High School Weight Lifters: Ultrasonographic Assessment

“…However, in our study, the elbow was positioned to 70 o of flexion in a lying position and gravity bearing force was applied to the forearm. According to Callaway et al 24) , the stability of the elbow joint is the highest when bending is lower than 20 degrees or higher than 120 degrees, and in cadaveric study, in which the medial collateral ligament was totally removed, laxity was highest when the elbow joint was bended to 70 degrees [24][25][26] .…”