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CLINICAL IMAGES
Year : 2014  |  Volume : 139  |  Issue : 1  |  Page : 180-181

A case of pycnodysostosis presented with pathological femoral shaft fracture


Department of Orthopaedic Surgery Maulana Azad Medical College & Lok Nayak Hospital New Delhi 110 002, India

Date of Web Publication6-Mar-2014

Correspondence Address:
Shailendra Singh
Department of Orthopaedic Surgery Maulana Azad Medical College & Lok Nayak Hospital New Delhi 110 002
India
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Source of Support: None, Conflict of Interest: None


PMID: 24604056

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How to cite this article:
Singh S, Sambandam B. A case of pycnodysostosis presented with pathological femoral shaft fracture. Indian J Med Res 2014;139:180-1

How to cite this URL:
Singh S, Sambandam B. A case of pycnodysostosis presented with pathological femoral shaft fracture. Indian J Med Res [serial online] 2014 [cited 2020 Feb 23];139:180-1. Available from: http://www.ijmr.org.in/text.asp?2014/139/1/180/128384

Pycnodysostosis is an autosomal recessive lysosomal storage disorder of bone in which the enzyme cathepsin K is mutated which maps on chromosome 1q21 causing osteoclast dysfunction. A 15-year old male patient of 140 cm height presented to the Department of Orthopaedics, Maulana Azad Medical College, New Delhi, India, in November 2012 with pathological fracture in shaft of femur [Figure 1]. On the basis of clinical and radiological findings, he was diagnosed as a case of pycnodysostosis. The patient had history of recurrent fractures with normal bone healing, open fontanelles, short stature, short finger tips, flat and grooved nails [Figure 2], micrognathia, and irregular teeth with hypodontia. The patient had normal intramedullary haematopoesis and no hepatospleenomegaly. Radiological evaluation of patient revealed generalized osteopetrosis, short distal phalanges [Figure 3], obtuse angle of mandible and open fontanelles [Figure 4]. He was managed conservatively by upper tibial skeletal traction and Thomas knee splint and showed normal bone healing pattern.
Figure 1: X-ray both hips with thigh showing sclerotic bones, pathological fracture in shaft femur and narrow medullary canal (arrows).

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Figure 2: Small fingers and grooved nails (arrow).

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Figure 3: X-ray of hand showing hypoplastic distal phalynx (arrows).

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Figure 4: X-ray of skull showing open anterior and posterior fontanelle and obtuse angle of mandible (arrows).

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    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4]



 

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