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Updated: Dec 29, 2025

A Mouse Model of Ankle-Subtalar Complex Joint Instability

A Mouse Model of Ankle-Subtalar Complex Joint Instability

Published on: October 28, 2022

Talus Secundarius: Case Series.

Stefan Rammelt¹, Elisabeth Manke¹, Andreas Prescher²

¹University Center of Orthopaedics and Trauma Surgery, University Hospital Carl Gustav Carus, Dresden, Germany.

Foot & Ankle International

|January 29, 2020

Summary

This summary is machine-generated.

Talus secundarius, a rare foot accessory bone, can cause pain. Surgical removal significantly reduces pain and improves foot function, though some symptoms may persist in congenital cases.

Keywords:

accessory excision lateral process nonunion talus

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Area of Science:

Orthopedics
Podiatry
Anatomy

Background:

Talus secundarius is an exceptionally rare accessory bone located at the lateral border of the foot.
It typically forms a synchondrosis or synostosis with the talar body and articulates with the lateral malleolus and calcaneus.

Purpose of the Study:

To investigate the clinical presentation, treatment, and outcomes of talus secundarius.
To highlight the importance of diagnosing accessory ossicles of the foot to prevent prolonged pain and misdiagnosis.

Main Methods:

A review of 6 cases of talus secundarius over 8 years in patients with an average age of 17.
Surgical excision was performed in 4 symptomatic cases; 2 cases were managed nonoperatively.

Main Results:

Symptomatic talus secundarius cases had an average duration of 21 months before presentation.
Complete ossicle removal led to significant pain reduction (Foot Function Index improved from 31.0 to 4.5, P < .01) and no functional restriction in 4 patients.
Nonoperative management was used for asymptomatic or mildly symptomatic cases.

Conclusions:

Accurate diagnosis of accessory foot bones like talus secundarius is crucial to avoid chronic pain and improper management.
Resection of symptomatic talus secundarius effectively alleviates pain, but patient counseling regarding potential residual symptoms from congenital deformities is necessary.