Removing a portion of the platysma muscle may ease symptoms for patients experiencing chronic neck stiffness and involuntary movement, according to a report in the July issue of
Archives of Facial Plastic Surgery, one of the JAMA/Archives journals.
In previous research, removal of parts of the platysmathe muscle stretching from the shoulders and chest through the neckappeared successful in alleviating hypertonicity (muscular rigidity), according to background information in the article. The authors, who had begun to use muscle-transfer surgeries to treat facial paresis [paralysis], noticed that the platysma was often hypertrophic (thickened) in these cases. They hypothesized that surgically removing part of the muscle could reduce hypertrophy, as well as hypertonicity and synkinesia (involuntary movement). "We began to offer the procedure to patients with hypertonic facial paresis and clinically evident platysmal synkinesis if they demonstrated a favorable response to chemodenervation [chemically induced paralysis] of the platysma with botulinum toxin," the researchers write.
Douglas K. Henstrom, M.D., and colleagues from the Massachusetts Eye and Ear Infirmary, Boston, reported on the outcomes and quality of life (QoL) of patients who underwent the procedure at their facility between October 2009 and August 2010. The procedure involved making an incision to expose the platysma and then removing, in segments, a one-centimeter band of the muscle. The operation was performed with local anesthesia on 19 patients, and with general anesthesia on five patients who simultaneously underwent a muscle graft to correct their inability to smile. Of the 24 patients, 21 successfully completed Facial Clinimetric Evaluation (FaCE) surveys both before and after the surgery.