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Os trigonum.

¹Pennsylvania Orthopaedic Foot and Ankle Surgeons, 230 West Washington Square, Fifth Floor, Philadelphia, PA 19106, USA. chaow1@comcast.net

Foot and Ankle Clinics

|October 23, 2004

Summary

Injuries to the posterior talus, including the os trigonum, result from impingement or hyperplantar flexion. Surgical excision is recommended for persistent symptoms after nonoperative treatment.

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Area of Science:

Orthopedic Surgery
Sports Medicine
Anatomy

Background:

The posterior talus has varied nomenclature (os trigonum, trigonal process).
Injuries involve chronic impingement or acute hyperplantar flexion.
These injuries affect the foot and ankle structures.

Purpose of the Study:

To summarize the etiology and treatment of posterior talar process injuries.
To highlight surgical options for persistent symptoms.

Main Methods:

Review of literature on posterior talar process injuries.
Discussion of nonoperative and operative management strategies.

Main Results:

Posterior talar process injuries can stem from repetitive stress or acute trauma.
Nonoperative management is typically attempted first.
Surgical excision is indicated when conservative measures fail.

Conclusions:

Surgical excision, either open or arthroscopic, is the recommended treatment for symptomatic posterior talar process pathology.
Accurate diagnosis and appropriate management are crucial for patient outcomes.

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