Tibial-tubercle avulsion and patellar-tendon rupture in pre-pubertal child with osteogenesis imperfecta(OI): Case report and review of current treatment in OI

Abstract

Very few cases of simultaneous occurrence of tibial tuberosity fracture with lower pole patella and distal patellar tendon rupture type injuries have been reported in adolescent athletic age group, but its occurrence in osteogenesis imperfecta (OI)* has not been reported to the best of our knowledge in a literature search of last 5 years in the English Language. The mechanism of avulsion injury after low-velocity trauma and the underlying pathology is a unique combination in our patient and a note on updates in general management of osteogenesis imperfecta is discussed.

Keywords: OI, Osteogenesis Imperfecta; Osteogenesis imperfecta; PT, Patellar Tendon; Patellar tendon rupture; TT, Tibial Tuberosity; Tibial tuberosity fracture.

Fig. 1

Radiograph showing tibial tubercle fracture and lower pole patella fracture.

Fig. 2

MRI scan suggestive of tibial tubercle avulsion fracture and patellar ligament avulsion.

Fig. 3

Intra-operative picture showing tendon rupture and tibial tubercle fracture.

Fig. 4

Intra-operative picture after suture anchor repair.

Fig. 5

Post-operative radiograph, arrow showing healed lower pole patella fracture united with conservative treatment.

Fig. 6

Showing functional movement at 6-month follow-up.

Fig. 7

Radiograph after 7 years of follow-up after injury.

Fig. 8

Clinical photographs on 7 years of follow-up after injury.