• Guanning Huang, Minglei Zhang, Youjia Zhang, Xukai Wang, Mingran Zhang, and Guangyao Liu.
• Department of Orthopedics.
• Medicine (Baltimore). 2021 Apr 9; 100 (14): e25253e25253.

RationaleHoffa fracture is a rare fracture confined to the coronal-plane involving femoral condyles. This occurs simultaneously with rotational dislocation of the knee joint is extremely rare. Up to now, there is no valid recommendation for the treatment of the Hoffa fracture.Patient ConcernsA 50-year-old female patient broke her knee joint while skiing, experiencing severe pain in the right knee, which was swollen. She presented limited function of the knee and movement upon arrival in the emergency room.DiagnosisComminuted Hoffa fracture in the right knee associated with rotational dislocation in the knee joint.InterventionsWe treated the dislocated knee joint through manual reduction initially. During the operation, we used posterolateral approach to expose the fracture fragments, thereafter using headless compression screws and a buttress plate to provide sufficient stability for the fracture. Early postoperative rehabilitation was encouraged.OutcomesThe patient finally achieved fracture healing three months after operation. In addition, she achieved 0-130° range of function of the knee after four months post-operation, and the patient obtained a satisfactory prognosis after our treatment.LessonsBy using appropriate surgical approach to obtain enough exposure, headless compression screws and the buttress plate provided adequate stability during early active rehabilitation, which resulted in satisfactory results in the treatment of the injury. We reviewed literatures regarding the treatment of Hoffa fracture to demonstrate that our treatment was effective.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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