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Papers of the Week

2022 Mar 17

Oper Neurosurg (Hagerstown)

Identifying a Novel Critical Access Difficulty Factor in Percutaneous Radiofrequency Rhizotomy for Trigeminal Neuralgia: Pterygoid Process Ridge.


Wang Z, Cheng M, Su X, Li K, Wang G, Gao Y, Du C, Tian Y
Oper Neurosurg (Hagerstown). 2022 Mar 17.
PMID: 35297796.


Percutaneous stereotactic radiofrequency rhizotomy (PSR) is an ablative procedure for trigeminal neuralgia (TN). The anatomic structures that pass through, or around, the foramen ovale (FO) play vital roles in the success rate of PSR. The presence of a variant pterygoid process ridge (PPR) obscuring the FO renders the cannulation procedure difficult but had not been described in the literature before.