Bicondylar Hoffa's fracture with patellar dislocation - a rare case

Abstract

Bicondylar Hoffa's fractures of the femur is very uncommon. Conjoint bicondylar Hoffa fracture with ipsilateral patellar dislocation, Bicondylar Hoffa's with patellar fracture and extensor mechanism rupture has been described in literature. We report a case of unconjoint bicondylar Hoffa's fracture with lateral patellar dislocation in 17-year-old male patient treated with open reduction and cancellous screw fixation that subsequently healed well with good functional outcome.

Keywords: ORIF with CC screw fixation; Patellar dislocation; Unconjoint bicondylar Hoffa's fracture.

Fig. 1

A & B Pre-operative oblique and lateral view radiographs of knee showing bicondylar Hoffa's fracture with patellar dislocation.

Fig. 2

Intra-operative pictures.A – Lateral condyle fracture with torn periosteum of patella; B – Intra-operative picture showing reduction of bicondylar fracture. C – Fixation of bicondylar fracture with 4 mm cc screws; D – Checking stability of fracture reduction and patellar tracking.

Fig. 3

A – Immediate post-operative X-ray; B – Post-operative radiograph at 9 months of follow up.

Fig. 4

A – Post-operative scar; B – Knee flexion at 2 months of follow up (0°); C – Knee flexion at 3 months of follow up (120°); D – Complete flexion at 9 months of follow up.