Abstract:
INTRODUCTION:Intraneural ganglion cysts in the tarsal tunnel are rare but are being increasingly reported. The cysts involve the tibial or plantar nerves and are most commonly derived from a neighboring (degenerative) joint, (i.e., the tibiotalar or subtalar) via an articular branch arising from the medial aspect of the nerve. We describe a safe zone for approaching these cysts in the tarsal tunnel that allows for identification of the joint connection without injury to important distal branches. METHODS:We present a case of an intraneural ganglion cyst within the tarsal tunnel in a patient with symptoms consistent with tarsal tunnel syndrome. Using intraoperative photographs and artist rendering, we describe a technique to safely disconnect the abnormal joint connection while preserving the important distal branches of the tibial nerve. CONCLUSION:The safe zone for the tibial nerve in the tarsal tunnel can be exposed by mobilization and gentle retraction of the vascular bundle. In cases of intraneural ganglion cysts, all apparent connections between the nerve and degenerative joints within this safe zone can be resected without injury to important distal nerve branches.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Puffer RC,Spinner RJdoi
10.1007/s00701-019-04027-8subject
Has Abstractpub_date
2019-10-01 00:00:00pages
2129-2132issue
10eissn
0001-6268issn
0942-0940pii
10.1007/s00701-019-04027-8journal_volume
161pub_type
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