A rare case of Hoffa fracture combined with lateral patellar dislocation

Abstract

The coronal unicondylar fracture of the distal femur (AO 33-B3) is a rare intraarticular injury within the weight bearing area of the knee, initially described by Albert Hoffa in 1904. We report an unusual combination of a Hoffa fracture with lateral patellar dislocation in a young adult. Our patient sustained the injury by a sudden twist of his leg during sports. He presented clinically with knee swelling, dislocation of the patella, and localized tenderness; unable to bare weight. After plane radiograph confirmed the injury, manual reduction of the patella was done by hyperextension of the knee and medialward pressure. Afterwards, a CT scan and MRI were conducted. The injury was surgically treated with lag-screws, locking-plate and MPFL-reconstruction.

Busch-Hoffa fracture: A systematic review

“…Jordan et al [77] Lateral Two lag-screws and a locking-plate PL Lateral (not specified) Case report Iwai et al [78] Lateral Two 5 mm cannulated screws AP Lateral subvastus Case report Soraganvi et al [79] Lateral Two cancellous screws PL Lateral arthrotomy Case report Compagnoni et al [80] Lateral Two parallel cannulated screws (50 mm long, diameter 4 mm-Synthes PL Lateral (not specified) Case report Vaishya et al [81] Lateral Two 6.5 mm cannulated screws AP Lateral (not specified) Case report Werner and Miller [82] Lateral Two additional 5.5 mm cannulated partially threaded screws PA Posterolateral Case report Xiao et al [83] Lateral type II -C* Double-thread headless compression screws with the diameter of 3.5 mm PA and PL Antero medial and lateral-posterior…”

Complex distal femoral fracture treated with interfragmentary screws and medial buttress plating

“…A review of the clinical cases of Hoffa fractures in recent literature[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] A rare case of Hoffa fracture combined with lateral patellar dislocation…”