We report the rupture of the bilateral quadriceps tendons in a hemodialysis case. The case was a 37-year-old man who fell on his knees. Though it was a low energy injury, his bilateral quadriceps tendons were ruptured. The patient was treated by surgical repair with artifical ligaments which were pierced through the patella bones and quadriceps tendons. Histologic examination showed degeneration and fibrosis but no amyloid deposit in the tendons. We considered chronic acidosis as a cause of weakness of the quadriceps tendons. Surgical treatment with artifical ligaments enabled the patient to start early rehabilitation and results were satisfactory.
