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Anat Cell Biol.  2019 Jun;52(2):115-119. 10.5115/acb.2019.52.2.115.

Ossification of the mamillo-accessory ligament: a review of the literature and clinical considerations

Affiliations
  • 1Seattle Science Foundation, Seattle, WA, USA. joei@seattlesciencefoundation.org
  • 2Swedish Neuroscience Institute, Swedish Medical Center, Seattle, WA, USA.
  • 3Department of Trauma Surgery, BG University Hospital Bergmannsheil, Ruhr University Bochum, Bochum, Germany.
  • 4Department of Anatomical Sciences, St. George's University, St. Georg's, Grenada, West Indies.

Abstract

Ossification of the mamillo-accessory ligament (MAL) is a misunderstood phenomenon; however, many have posited that it can result in nerve entrapment of the medial branch of the dorsal ramus causing zygapophyseal joint related low back pain. The MAL has been studied anatomically by few, yet the data indicate possible associations between ossification of this ligament and spondylosis. It has been proposed that mechanical stress upon the lumbar spine may also lead to progressive ossification of the MAL into a bony foramen.

Keyword

Mamillo-accessory ligament; Ossification; Low back pain; Medial branch block; Anatomy; Lumbar

MeSH Terms

Ligaments*
Low Back Pain
Nerve Compression Syndromes
Spine
Spondylosis
Stress, Mechanical
Zygapophyseal Joint
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