Advertisement

OPLL pp 81-84 | Cite as

Clinical Manifestation of Cervical Ossification of the Posterior Longitudinal Ligament

  • Shinya Kawai

Abstract

Ossification of the posterior longitudinal ligament (OPLL) of the spine is found radiographically at any level of the whole spine, including the cervical, thoracic, and lumbar spine; the cervical spine is the level most frequently encountered (Fig. 1). The shape and volume of OPLL is quite varied. OPLL is sometimes found in a very limited area but often extends to the wide area behind the posterior wall of the vertebral body and disk of the spine and occupies from less than 10% to more than 50% of the anterior part of the spinal canal. The appearance of OPLL observed in radiographs is classified into four types: (1) segmental, (2) continuous, (3) mixed, and (4) localized [1,2]. The shape is also quite irregular. OPLL is one of the important factors in stenosis of the spinal canal, thus causing the spinal cord and the nerve roots to be entrapped or compressed in various ways.

Keywords

Cervical Spine Spinal Canal Spinal Cord Lesion Posterior Longitudinal Ligament Cervical Myelopathy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Tyuyama N (1984) Ossification of the posterior longitudinal ligament of the spine. Clin Orthop Relat Res 184: 71–84Google Scholar
  2. 2.
    Kurokawa T (1983) Ossification of the posterior longitudinal ligament (in Japanese). Clin Orthop 2: 116–141Google Scholar
  3. 3.
    Hattori S (1981) Clinical manifestation of OPLL (in Japanese). 81st lecture of the Japanese doctors association, Tokyo, 1981Google Scholar
  4. 4.
    Kirita Y (1984) Ossification of the posterior londitudinal ligament (in Japanese). New Clin Orthop 4A: 313–372Google Scholar
  5. 5.
    Terayama K (1976) Ossification of the posterior longitudinal ligament (in Japanese). J Jpn Orthop Assoc 50: 415–442Google Scholar
  6. 6.
    Kawai S (1987) Cervical OPLL (in Japanese). Yamaguchi Med 33: 337–345Google Scholar
  7. 7.
    Saika M (1987) Etiology and growth of OPLL (in Japanese). J Jpn Orthop Assoc 61: 1059–1072Google Scholar

Copyright information

© Springer Japan 1997

Authors and Affiliations

  • Shinya Kawai
    • 1
  1. 1.Department of Orthopedic SurgeryYamaguchi University School of MedicineKogushi, Ube, Yamaguchi, 755Japan

Personalised recommendations