Pycnodysostosis associated with spondylolysis

Miyuki Sakuma Zenke, Masahito Hatori, Satoshi Tago, Masami Hosaka, Shoichi Kokubun

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We report 23 years of observation of a patient with pycnodysostosis associated with progressive spondylolysis. There have been very few papers describing the development of spondylolysis associated with pycnodysostosis as confirmed by serial X-ray examinations. The diagnosis was made by the patient's typical bird-like face, plain radiological findings, and repeated tibial fractures. At the age of 8 years, spondylolysis of L4 was observed. The spondylolysis had increased in number to 4 by the age of 24 years, that is, L2 through L5.

Original languageEnglish
Pages (from-to)248-250
Number of pages3
JournalArchives of Orthopaedic and Trauma Surgery
Issue number4
Publication statusPublished - 2002 Jan 1


  • Pathological fracture
  • Pycnodysostosis
  • Spondylolysis

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


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