The temporalis muscle may be mobilized for a patient undergoing craniotomy. Following surgery the temporalis muscle may not function properly, especially if the dissection was done in an aggressive manner..
Causes of the dysfunction:
(1) muscle atrophy
(2) muscle ischemia
(3) scarring
(4) denervation
(5) inadequate muscle tension
Clinical features may include:
(1) temporomandibular joint pain
(2) impaired mastication
(3) restricted mouth opening
(4) painful mouth opening
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