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Peer-reviewedCC BY-NCOrthopedic Reviews

Apparent absence of the posterior horn of the lateral meniscus with chronic anterior cruciate ligament insufficiency and a medial meniscal ramp lesion: a case report

  • Atheer G. Almutairi1
  • Anfal B. Alrasheedy2
  • Layan A. Alharbi2
  • Latifh M. Alhrbi1
  • Taif A. Almayouf1
  • Wiam M. Alhoshani2
  • Saleha Khan3
  • Ismail Almogbil4
4 affiliations
  1. 1Medicine Qassim University
  2. 2medicine Qassim University
  3. 3Medicine Batterjee Medical College
  4. 4Surgery Qassim University
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Abstract

Introduction: Persistent non-visualization of the posterior horn of the lateral meniscus in a knee without previous surgery is rare. Case Presentation: A 41-year-old man with obesity presented with chronic right-knee pain and recurrent giving-way eight years after an untreated complete anterior cruciate ligament tear. Examination showed positive Lachman, pivot-shift, anterior drawer, and McMurray tests. Magnetic resonance imaging demonstrated chronic anterior cruciate ligament discontinuity, a medial meniscal ramp lesion, and persistent non-visualization of the lateral meniscus posterior horn, with associated degenerative changes. Management and Outcomes: No previous meniscal surgery was reported, and no portal scars or hardware were identified. Arthroscopy had not been performed at the time of reporting; therefore, congenital absence could not be distinguished from severe acquired tissue loss, and postoperative outcomes were unavailable. Conclusion: Systematic review of all meniscal segments and arthroscopic confirmation, when clinically indicated, are essential before labeling an absent-appearing meniscal segment as congenital.

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Cite

BibTeXRIS
BibTeX
@article{almutairi2026apparent,
  title = {{Apparent absence of the posterior horn of the lateral meniscus with chronic anterior cruciate ligament insufficiency and a medial meniscal ramp lesion: a case report}},
  author = {Atheer G. Almutairi and Anfal B. Alrasheedy and Layan A. Alharbi and Latifh M. Alhrbi and Taif A. Almayouf and Wiam M. Alhoshani and Saleha Khan and Ismail Almogbil},
  journal = {Orthopedic Reviews},
  year = {2026},
  month = nov,
  doi = {10.52965/001c.172717},
  url = {https://doi.org/10.52965/001c.172717},
  note = {CC BY-NC},
}
RIS
TY  - JOUR
TI  - Apparent absence of the posterior horn of the lateral meniscus with chronic anterior cruciate ligament insufficiency and a medial meniscal ramp lesion: a case report
AU  - Atheer G. Almutairi
AU  - Anfal B. Alrasheedy
AU  - Layan A. Alharbi
AU  - Latifh M. Alhrbi
AU  - Taif A. Almayouf
AU  - Wiam M. Alhoshani
AU  - Saleha Khan
AU  - Ismail Almogbil
PY  - 2026
DA  - 2026/11/01
JO  - Orthopedic Reviews
DO  - 10.52965/001c.172717
UR  - https://doi.org/10.52965/001c.172717
AB  - Introduction: Persistent non-visualization of the posterior horn of the lateral meniscus in a knee without previous surgery is rare. Case Presentation: A 41-year-old man with obesity presented with chronic right-knee pain and recurrent giving-way eight years after an untreated complete anterior cruciate ligament tear. Examination showed positive Lachman, pivot-shift, anterior drawer, and McMurray tests. Magnetic resonance imaging demonstrated chronic anterior cruciate ligament discontinuity, a medial meniscal ramp lesion, and persistent non-visualization of the lateral meniscus posterior horn, with associated degenerative changes. Management and Outcomes: No previous meniscal surgery was reported, and no portal scars or hardware were identified. Arthroscopy had not been performed at the time of reporting; therefore, congenital absence could not be distinguished from severe acquired tissue loss, and postoperative outcomes were unavailable. Conclusion: Systematic review of all meniscal segments and arthroscopic confirmation, when clinically indicated, are essential before labeling an absent-appearing meniscal segment as congenital.
SN  - 2035-8237
SN  - 2035-8164
ER  -