This study presents a series of cases with surgically treated partial distal biceps tendon ruptures. The results of full distal biceps tendon rupture repair are also presented and a comparison is made between the two groups. Between 2001 and 2015, patients with partial and full ruptures of the distal biceps tendon were surgically repaired. At follow-up, the elbow function of the patients was assessed using the Oxford Elbow Score and maximum flexion and supination forces were measured. Forty-eight elbows in 43 patients returned to the follow-up visit. There was no statistically significant difference between the two groups in terms of function and strength. In this study, there were no statistical differences in outcome between the partial and the full distal biceps tendon groups. Surgical repair seems to be a valuable treatment option for partial distal biceps tendon ruptures.