Jangra Prem, Sami Abdus, Jain Vijay Kumar, Jeyaraman Naveen, Ramasubramanian Swaminathan, Jeyaraman Madhan
Department of Orthopaedic Surgery, Atal Bihari Vajpayee Institute of Medical Sciences, Dr. Ram Manohar Lohia Hospital, New Delhi, India.
Department of Orthopaedics, ACS Medical College and Hospital, Dr. MGR Educational and Research Institute, Chennai, Tamil Nadu, India.
J Orthop Case Rep. 2025 Jun;15(6):56-62. doi: 10.13107/jocr.2025.v15.i06.5664.
Osteochondromas, common benign bone tumors, can lead to complications such as snapping quadriceps when located near joints such as the knee. This case report discusses a rare instance of a distal femur osteochondroma causing a snapping sensation during knee movement. The pathogenesis involves the tumor altering the normal mechanics of the quadriceps tendon, necessitating a comprehensive diagnostic approach including magnetic resonance imaging and dynamic ultrasound.
We report a 37-year-old male who presented with a 6-month history of progressive pain, swelling, and a snapping sensation in the right knee, which was confirmed as a pedunculated osteochondroma with a cartilage cap <2 cm in thickness with appropriate investigations. Due to failed conservative management, the surgical resection through the Swashbuckler approach was performed.
The case emphasizes the importance of precise diagnostic imaging and tailored surgical intervention in managing uncommon mechanical complications of osteochondromas.
骨软骨瘤是常见的良性骨肿瘤，当位于膝关节等关节附近时，可导致诸如股四头肌弹响等并发症。本病例报告讨论了一例罕见的股骨远端骨软骨瘤在膝关节活动时引起弹响感的情况。其发病机制涉及肿瘤改变股四头肌肌腱的正常力学，因此需要包括磁共振成像和动态超声在内的综合诊断方法。
我们报告一名37岁男性，他有6个月的右膝进行性疼痛、肿胀和弹响感病史，经适当检查确诊为带蒂骨软骨瘤，软骨帽厚度<2厘米。由于保守治疗失败，采用海盗式入路进行了手术切除。
该病例强调了精确诊断成像和针对性手术干预在处理骨软骨瘤罕见机械并发症中的重要性。
