Anatomy, Function & Dysfunction Rhomboid Muscles - Everything You Need To Know - Dr. Nabil Ebraheim

Anatomy function and dysfunction

the rhomboid muscles

oh boy muscles by underneath the


the rhomboid muscles connect the scapula

to the vertebrae so it is really helping

to hold the scapula close to the

thoracic wall

during Boyd muscles get the name from

their combined shape having the shape of

rhombus the word rhomboid means a

diamond or a kite shaped object

during Boyd Minor it arises from the

nuchal ligament and the spinous

processes of c7 and t1 vertebrae

it inserts into the medial border of the

scapula above the insertion of the

rhomboid major muscle

don't Boyd major

it arises from the spinous processes

from t2 t3 t4 and t5 vertebrae

insertion it insert into the medial

border which is the vertebral border of

the scapula from the level of the

scapular spine to the inferior angle of

the scapula

it is a diagram that shows the insertion

of the rhomboid minor and major in

relationship to the spine of the scapula

here is a line parallel to the spine of

the scapula and healed the line of the

separation between the two muscles above

this line inserts the rhomboid minor and

below this line inserts the rhomboid


action during Boyd's ADAT or retract the

scapula by bullying the scapula towards

the vertebral column

it works with the levator scapulae to

elevate the medial border of the scapula

it also rotates the sky black downwards

with respect to the glenohumeral joint

the employees participate in proper

movement and the stability of the

scapula which is critical for shoulder


nerve supply dorsal scapular nerve c4 c5


clinical entities related to the

rhomboid major and minor muscles

brachial plexus injury if the patient

has a brachial plexus injury and an EMG

show evidence of an intact signal in the

serratus anterior muscle which is

supplied by the long classic nerve and

also an intent signal in the rhomboid

muscles which is supplied by the dorsal

scapular nerve this situation indicates

that the lesion of the brachial plexus

is post ganglionic injury which will

have a better prognosis than the

preganglionic injury of the brachial


definitely the preganglionic injury you

will have a poor prognosis

the preganglionic injury is associated

with Horner's syndrome ptosis miosis

anhidrosis due to disruption of the

sympathetic chain

there will be also medial winging of the

scabbard due to loss of the serratus

anterior and there Boyd muscle function

then failure border of the scapula

will move medially

in the preganglionic injury of the

brachial plexus will be loss of the

muscle function of the levator scapulae

and rhomboid muscles

basically we will examine proximally the

muscles that are innervated root level

motor branches the nerves that are

coming out of the roots

detecting if the brachial plexus injury

is preganglionic or postganglionic

injury is important the normal Palace

final muscle activity called EMG

indicates a post ganglionic injury which

will have good prognosis

another entity that is popular is

rhomboid trigger points muscle pain and

tightness usually the patient complain

about superficial pain between the

shoulder blades patient described it as

an ache or they feel knots

here is a diagram that shows the area

where the patient feels the pain in

between the shoulder blades

the pain is closer to the scheduler than

to the spine

the paint or cares especially at rest

and movement does not influence the pain

the patient also may feel grinding or

snapping or a crunching noise during

movement of the scapula and in this case

in a tool out establish rusick

impingement or it's nabbing a scheduler

other muscle trigger points can be

associated with rhomboid trigger points

such as pectoralis major levator

scapulae and trapezius

so what aggravate the condition of

rhomboid trigger points

painters that holding their arm above

the head for a long time

bad posture like the people that work

habitually in Islam forward round

shoulder position which is a protected

position such as in people that work on

a computer or a desk job or people that

are sewing or reading in this situation

the pectoralis which is antagonistic to

the retraction function of Durham Boyd's

this muscle may become shortened and

overactive and the rhomboids become

stretched trying to counteract the pull

of the pectoralis

avoid aggravating the problem some

people believe it is better to work on

the pectoralis first before you work on

their own voyage

because if you stretch them boys would

type pectoralis muscle this may increase

the weakness and irritation of the

trigger points

so how do you treat rhomboid trigger


he gave the patient anti-inflammatory

medication you may try to search the

pectoralis first you may do rhomboid

trigger point release you may treated by

a tennis ball and possible injection of

the trigger points

it may be really hard to tell if the

rhomboids is causing the pain between

the shoulder blades or other muscles

that are inserted around the same area

thank you very much I hope that was