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Subtalar arthroscopy: indications, technique, and results

M M Williams1, R D Ferkel

  • 1Department of Orthopedic Surgery, The University of California at Los Angeles, USA.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|June 10, 1998
PubMed
Summary

Subtalar arthroscopy is effective for diagnosing ankle pain, with 86% good-to-excellent results in patients with subtalar joint pathology. Many cases of chronic lateral ankle pain were found to originate solely in the ankle joint.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Arthroscopy

Background:

  • Subtalar arthroscopy is a minimally invasive technique for evaluating and treating conditions of the subtalar joint.
  • Concomitant ankle arthroscopy aids in precise diagnosis of ankle and subtalar pain.
  • Indications include chronic pain, swelling, buckling, or locking unresponsive to conservative management.

Observation:

  • Fifty patients underwent subtalar arthroscopy, with ankle arthroscopy performed concurrently.
  • Patients were followed for an average of 48 months.
  • Group 1 (42%) presented with chronic lateral ankle pain post-inversion injury, with isolated ankle joint pathology.
  • Group 2 (58%) exhibited various subtalar joint pathologies including synovitis, degenerative joint disease, and chondromalacia.

Findings:

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  • In Group 1, subtalar joints were normal, indicating ankle-only pathology.
  • Group 2 diagnoses included synovitis, degenerative joint disease, subtalar dysfunction, chondromalacia, os trigonum nonunion, arthrofibrosis, loose bodies, and osteochondral lesions.
  • Overall, 86% of patients in Group 2 achieved good-to-excellent outcomes.

Implications:

  • Subtalar arthroscopy, combined with ankle arthroscopy, provides valuable diagnostic and therapeutic insights for complex ankle and subtalar pain.
  • Accurate diagnosis of isolated ankle pathology is crucial, as demonstrated in Group 1.
  • The high success rate in Group 2 highlights the efficacy of arthroscopic treatment for diverse subtalar joint conditions.