Publication: Hoffa’s Osteochondroma - Para-articular Extrasynovial Infrapatellar Fat Pad Osteochondroma: A Case Report
Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Nepal Medical Association
Abstract
Abstract:
Osteochondroma usually arises from the metaphyseal region of growing bones. The occurrence of extraskeletal osteochondroma is rare with very few case reports. Para-articular osteochondroma is a type of extraskeletal osteochondroma. It frequently occurs around the knee, usually at infrapatellar Hoffa’s fat pad. It is usually intracapsular but extrasynovial and arises from the capsule and connective tissues due to osteocartilaginous metaplasia. We present a case of 19-years male with anterior knee pain for 3 years, swelling, and deformity of the knee with flexion limitation for one year. Radiography revealed ovoid, corticated lesion free from adjoining bones. Mass interpreted as benign, so planned for excision. Well circumscribed nodule excised from the medial parapatellar approach. Histology revealed cartilaginous tissues surrounded by fibrous tissues with scattered enchondral ossification.
Postoperatively and subsequent follow-up resulted in pain-free joint, complete recovery of range of motion with no clinicoradiological evidence of recurrence.
Description
Sunil Panta
Department of Orthopedics, Bharatpur Hospital, Chitwan, Nepal
Shrawan Kumar Thapa
Department of Orthopedics, Bharatpur Hospital, Chitwan, Nepal
Krishna Prasad Paudel
Department of Orthopedics, Bharatpur Hospital, Chitwan, Nepal
Manoj Kandel
Department of Orthopedics, Bharatpur Hospital, Chitwan, Nepal
Bishwa Raj Adhikari
Department of Orthopedics, Bharatpur Hospital, Chitwan, Nepal
Keywords
adipose tissue, knee joint, osteochondroma