Bony landmark between the attachment of the medial meniscus posterior root and the posterior cruciate ligament: CT and MR imaging assessment

Masataka Fujii, Takayuki Furumatsu, Shinichi Miyazawa, Yuya Kodama, Tomohito Hino, Yusuke Kamatsuki, Toshifumi Ozaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Objectives: (1) To reveal the prevalence of the bony recess (posterior dimple) and (2) to determine the position of the posterior dimple on the tibial plateau using three-dimensional computed tomography (3DCT). Materials and methods: In this study, a retrospective review of 112 patients was performed to identify the posterior dimple and to evaluate its position on 3DCT. Magnetic resonance images (MRIs) were also used to determine the positional relationship among the posterior cruciate ligament (PCL), medial meniscus posterior insertion (MMPI), and posterior dimple. Results: The posterior dimple was observed in 100 of 112 knees (89.3%) on 3DCT. The center of the posterior dimple was 13.6 ± 0.8 mm from the medial tibial eminence apex. MRI showed that the posterior dimple separated the tibial attachment of the PCL and MMPI. Conclusion: This is the first study to discuss the prevalence and position of the bony recess in the posterior intercondylar fossa.

Original languageEnglish
Pages (from-to)1041-1045
Number of pages5
JournalSkeletal Radiology
Volume46
Issue number8
DOIs
Publication statusPublished - Aug 1 2017

Keywords

  • Bony recess
  • Medial meniscus posterior root
  • Posterior cruciate ligament

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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