Scm Sentence Examples
The sternocleidomastoid (SCM) muscle runs down either side of the neck.
Wryneck affects the SCM muscle, usually on only one side of the neck, causing the neck to spasm painfully and twist.
Although this lump disappears by itself after about three months, the SCM muscle becomes tight, contracted, and fibrous.
One theory suggests that damage occurs during the birth causing a blood clot to form in the SCM muscle.
It is believed that either pressure on the SCM muscle due to position of the head in the uterus causes the muscle to become fibrous and shorten or that the blood supply to the muscle is disturbed and the muscle becomes scarred.Advertisement
In either case, the result is scarring and shortening of the SCM muscle.
The goal of surgery in congenital muscular torticollis is to cut and then reattach the SCM muscle in a way that will remove the constricting bands of fibrous tissue, improve range of motion, and allow the head to be held vertically.
A uniploar SCM release, sometimes called an inferior open tenotomy of the SCM, cuts and then reattaches the SCM muscle where it meets both the breastbone and collarbone.
A bipolar SCM release, also called a bipolar z-plasty, releases muscle where it is attached to the skull and at the collarbone.
The SCM muscle is cut apart in a Z and then reattached.Advertisement
Surgery is highly successful on children who do not respond to conservative treatment, so long as their torticollis is caused by restriction of the SCM muscle.