Abstract
We report a case of patellar tendon rupture in a patient with osteogenesis imperfecta. The patient was a 37-year-old man who suffered a patellar tendon rupture by missing a step on the stairs. X-ray examination demonstrated patella alta, and discontinuity of the patellar tendon was noted on MRI. The patient was diagnosed with osteogenesis imperfecta (Sillence type 1A) by the presence of a blue sclera, a history of achilles tendon rupture and femoral diaphyseal fracture, and a low value of serum intact type 1 collagen N-propeptide (P1NP). The ruptured tendon was repaired using Ethibond suture, and augmented using the Leeds-Keio artificial ligament. There has been no re-rupture during one year of follow-up, and the patient has satisfactory knee function.
