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Fenestrated medial patella plica.

F A Barber1

  • 1Division of Orthopedic Surgery, University of Texas Health Science Center, Dallas.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|January 1, 1987
PubMed
Summary

Fenestrated medial patellar plicae, found in 1.8% of knee arthroscopies, often cause medial knee pain. Surgical removal typically relieves these symptoms, suggesting inflammation is the likely cause.

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Area of Science:

  • Orthopedic Surgery
  • Knee Arthroscopy
  • Anatomical Variations

Background:

  • Medial patellar plicae are synovial folds within the knee joint.
  • Fenestrated (perforated) plicae are considered an unusual anatomical variant.
  • Understanding their clinical significance is important for knee surgeons.

Purpose of the Study:

  • To determine the incidence of fenestrated medial patellar plicae.
  • To describe the characteristics of these fenestrations.
  • To evaluate the association with knee symptoms and the effectiveness of resection.

Main Methods:

  • Review of 1,000 consecutive knee arthroscopy cases.
  • Documentation of plical morphology, including fenestrations.
  • Correlation of findings with patient-reported symptoms and surgical outcomes.

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Main Results:

  • Fenestrated medial patellar plicae were identified in 1.8% of cases.
  • Fenestrations varied in size and shape (5 mm to 3-4 cm).
  • 80% of patients with fenestrated plicae reported medial knee symptoms relieved by resection.

Conclusions:

  • Fenestrated medial patellar plicae are an uncommon finding in knee arthroscopy.
  • These plicae are frequently associated with medial knee pain.
  • Symptom relief after resection suggests medial wall inflammation, not cartilage abrasion, is the primary cause.