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Giant synovial chondromatosis of hip
  1. Satvik N Pai and
  2. Mohan M Kumar
  1. Department of Orthopaedic Surgery, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
  1. Correspondence to Dr Satvik N Pai; satvik.pai{at}


Synovial chondromatosis is a rare, benign condition occurring due to metaplasia of synovium. A 65-year-old woman presented with pain in her right hip for 6 years. On examination, a swelling was palpable at the base of scarpa’s triangle and her right hip movements were restricted. Imaging modalities showed ossified nodules in the antero-inferior aspect of the hip joint, joint effusion and arthritic changes. We diagnosed the patient to have synovial chondromatosis with secondary arthritis of the hip joint. We performed a total hip arthroplasty with simultaneous synovectomy and extraction of the osteochondral loose bodies, 5 of which were about 2×2 cm in size. We found that excessive acetabular reaming was required due to craters, the osteochondral masses formed on the acetabular surface. Histopathological analysis confirmed the diagnosis. The patient had an excellent functional outcome and no recurrence 5 years following the surgery.

  • orthopaedic and trauma surgery
  • radiology
  • pathology
  • orthopaedics

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  • Contributors SNP collected all the data and digital images of the investigations of the patient and was responsible for the writing of the article. MMK was the chief operating surgeon and guided the entire process of preparation of the article, including reviewing the article.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.