, Volume 36, Issue 6, pp 453–455 | Cite as

Posterior lumbar apophyseal ring fractures: a report of 20 cases

  • T. K. Yang
  • Y. W. Bahk
  • K. H. Choi
  • M. W. Paik
  • K. S. Shinn
Diagnostic Neuroradiology


Posterior apophyseal ring fracture (PARF) of the lumbar spine is an uncommon injury thought usually to occur in adolescence. We analysed CT findings in 20 cases (19 patients), whose age ranged from 16 to 45 years (average 30 years). The PARF could be divided into two distinct groups on the basis of the shape and location of the fracture and the defect of the vertebral rim. In group 1 (2 cases), PARF involved the central aspect of the inferior vertebral rim and bone fragments were large and broad-based. In group 2, PARF were located at the posterolateral margin of the superior vertebral rim and bone fragments were small and focal. The great majority of previously reported cases belonged to our group 1. A pathogenesis for each group is suggested.

Key words

Apophyseal ring fracture Lumbar spine Avulsion fracture Limbus vertebra Computed tomography 


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  1. 1.
    Meyenburg H von (1946) Über “Abtrennung” der hinteren Wirbelkörperkante als Ursache von Ischias. Radiol Clin (Basel) 15: 215–224Google Scholar
  2. 2.
    Lowrey JJ (1973) Dislocated lumbar vertebral epiphysis in adolescent children. Report of three cases. J Neurosurg 38: 232–235Google Scholar
  3. 3.
    Keller RH (1974) Traumatic displacement of the cartilaginous vertebral rim: a sign of intervertebral disc prolapse. Radiology 110: 21–23Google Scholar
  4. 4.
    Lippit AB (1976) Fracture of the vertebral body endplate and disk protrusion causing subarachnoid block in an adolescent. Clin Orthop 116: 112–114Google Scholar
  5. 5.
    Handel SF, Twiford TW Jr, Reigel DH, Kaufmann HH (1979) Posterior lumbar apophyseal fracture. Radiology 130: 629–633Google Scholar
  6. 6.
    Petterson H, Harwood-Nash DC, Fitz CR, Chuang S, Armstrong E (1981) The CT appearance of avulsion of the posterior vertebral apophysis. A case report. Neuroradiology 21: 145–147Google Scholar
  7. 7.
    Dake MD, Jacobs RP, Margolin FR (1985) Computed tomography of lumbar apophyseal ring fractures. J Comput Assist Tomogr 9: 730–732Google Scholar
  8. 8.
    Laredo JD, Bard M, Chretien J, Kahn MF (1986) Lumbar posterior marginal intra-osseous cartilaginous node. Skeletal Radiol 15: 201–208Google Scholar
  9. 9.
    Ehni G, Scheider SJ (1988) Posterior lumbar vertebral rim fracture and associated disc protrusion in adolescence. J Neurosurg 68: 912–916Google Scholar
  10. 10.
    Dietemann JL, Ringe M, Badoz A, et al (1988) Radiology of posterior lumbar apophyseal ring fractures: report of 13 cases. Neuroradiology 30: 337–344Google Scholar
  11. 11.
    Schmorl G, Junghanns H (1971) The human spine in health and disease. Grune and Stratton, New YorkGoogle Scholar
  12. 12.
    Bick EM, Copel JW (1951) The ring apophysis of the human vertebra. Contribution to human osteogeny. J Bone Joint Surg [Am] 33: 783–787Google Scholar
  13. 13.
    Kricun ME (1988) Imaging modalities in spinal disorders. Saunders, Philadelphia pp 393, 549–552Google Scholar
  14. 14.
    Resnick D, Niwayama G (1989) Diagnosis of bone and joint disorders. 2nd edn. Saunders, Philadelphia, p 1530Google Scholar

Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • T. K. Yang
    • 1
    • 2
  • Y. W. Bahk
    • 2
  • K. H. Choi
    • 2
  • M. W. Paik
    • 3
  • K. S. Shinn
    • 2
  1. 1.Department of Radiology, Holy Family Hospital, CatholicUniversity Medical CollegeKyung Ki DoKorea
  2. 2.Department of Radiology, Kangnam St. Mary's HospitalCatholic University Medical CollegeSeoulKorea
  3. 3.Department of Neurosurgery, Holy Family HospitalCatholic University Medical CollegeKyung Ki DoKorea

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