Muscle:Levator Scapulae

Levator scapulae is a paired, deep muscle of the posterior lateral neck that is one of the most commonly involved muscles in both neck pain and restricted neck rotation. Its trigger points (TrPs) are responsible for the classic presentation of "stiff neck" — markedly limited rotation to the ipsilateral side — and refer an essential pain pattern to the angle of the neck and along the vertebral border of the scapula. The levator scapulae is the muscle that most frequently produces the scapulocostal syndrome, and is one of the first muscles to become vulnerable during respiratory infections, motor vehicle accidents, and occupational postural strain.

Anatomy

The levator scapulae attaches above to the transverse processes of C1–C4 (specifically the posterior tubercles of the C3 and C4 transverse processes), and below to the vertebral border of the scapula between the superior angle and the root of the spine of the scapula.

A clinically important anatomical feature is the twist in the muscle fibres as they travel from the cervical vertebrae to the scapula: the C1 digitation is most superficial and passes more vertically to the vertebral border, while the C4 digitation lies deepest and passes diagonally to a lateral attachment on the superior angle of the scapula. This multi-directional arrangement means complete release requires addressing multiple fibre directions.

Cadaveric studies have shown that in approximately 63% of specimens the levator scapulae inserts in two layers that enfold the medial border of the scapula — meaning part of the scapular attachment is on the undersurface and not readily palpable. A bursa is present in the areolar tissue between these two layers in nearly half of those specimens, and a second bursa between the serratus anterior, the angle of the scapula, and the levator scapulae occurs in approximately 38%.

Primary actions:

Scapula free — rotates the glenoid fossa downward and elevates the scapula
Scapula fixed — assists ipsilateral rotation of the neck; bilateral contraction assists neck extension and checkreins (controls) neck flexion
During arm movements — active during arm extension; not recruited during scapular-plane elevation or arm abduction

Innervation: Branches of C3 and C4 via the cervical plexus; in part by fibres from the dorsal scapular nerve (C5 root).

Functional synergists:

Scapular elevation and downward rotation: rhomboidei major and minor, latissimus dorsi
Neck stabilisation: splenius cervicis, scalenus medius (common attachments)

Functional antagonists:

Scapular elevation: lowest fibres of serratus anterior, lower trapezius, latissimus dorsi (indirect)
Scapular rotation: serratus anterior, upper and lower trapezius

Referred Pain Patterns

Both TrP regions of the levator scapulae (the central TrP at the angle of the neck, and the attachment region near the superior angle of the scapula) converge on the same essential and spillover zones.

Essential pain zone (present in nearly all patients with active TrPs):

Angle of the neck — a deep, aching pain at the posterolateral junction of the neck and shoulder

Spillover pain zone (present in some patients):

Along the vertebral border of the scapula, extending inferiorly
Posterior to the shoulder joint

When TrPs are sufficiently active, they refer severe pain at rest, not only on movement.

Activation and Perpetuating Factors

Postural and Occupational Stress

The levator scapulae is particularly vulnerable to sustained shortening, especially when the muscle is fatigued and exposed to cold:

Secretarial and keyboard work — especially with the head and neck turned to view material placed beside the keyboard
Sustained telephone use — particularly when the neck is laterally flexed to hold the phone against the shoulder
Sustained head rotation toward one side during conversation
Carrying a bag or purse hanging from the ipsilateral shoulder
Sitting in a chair with armrests that are too high, elevating the scapulae bilaterally and sustaining muscle shortening
Walking with a cane that is too long — forces unnatural elevation of one shoulder, activating ipsilateral levator scapulae TrPs
Sleeping with the neck in a tilted position (e.g. in an airplane seat without adequate support)

Recreational and Activity Stress

Vigorous tennis
Swimming the crawl stroke when out of condition
Repeated head rotation ("spectator neck" from sitting near the net at a tennis match)
Fixedly tilting the head while watching a stage, movie screen, or television

Psychological Stress

The characteristic "weight-of-the-world-on-my-shoulders" posture — or a tense, hostile, aggressive head-forward posture — generates chronic elevated-shoulder tension that perpetuates levator TrPs.

Reflex Activation from Other TrPs

TrPs in the levator scapulae can arise reflexly from a key TrP in the functionally related upper trapezius muscle. Dysfunction of the serratus anterior (due to serratus TrPs) overloads the levator scapulae as a compensating elevator.

Lower Body Asymmetries

Stresses from asymmetries in the lower body — including lack of normal push-off during walking (from calf weakness, limb-length inequality, or pes planus), and quadratus lumborum shortening — can all impose compensatory strain on the levator scapulae during each gait cycle. The twisting diagonal structure of the muscle may make it particularly vulnerable to this mechanism.

Infection

During the prodromal stage of an acute upper respiratory infection, the levator scapulae becomes vulnerable to activation of its TrPs by mechanical stresses that are ordinarily within its tolerance. This susceptibility may begin one to two days before full symptoms of a head cold or sore throat appear, and may last for several weeks afterward. A stiff neck syndrome also often begins during an attack of oral herpes simplex.

Motor Vehicle Accident

Whiplash injury from any direction commonly activates levator scapulae TrPs through acute overload stress.

Clinical Examination

Subjective Presentation

The subjective profile of levator scapulae TrP pain has several features that, taken together, are highly characteristic and distinguish it from other sources of neck and shoulder pain.

Cardinal subjective features:

Feature	Detail
Pain location	Concentrated at the angle of the neck; may extend along the medial border of the scapula and to the posterior shoulder
Chief complaint	"Stiff neck" — the patient cannot turn the head to the affected side; typically presents more as a movement restriction than as spontaneous aching pain
Quality	Deep, aching; if severely active, pain present at rest
Directional restriction	Pain on rotating the head toward the affected side (contraction pain); also pain on rotating away (stretch pain) — both directions are limited, but toward the affected side is most restricted
Compensatory movement pattern	To look behind, the patient turns the entire body rather than the neck
Shoulder symptoms	Minimal in isolation — no primary arm pain, no significant shoulder ROM loss unless the scapular upward rotation component is affected
Shortness of breath	Occasionally reported; dry needling of levator TrPs has been reported to relieve nuchal soreness with associated subjective shortness of breath

Features that distinguish levator scapulae from the principal differential muscles:

Feature	Levator scapulae	SCM	Upper trapezius	Splenius cervicis
Chief complaint	Stiff neck with rotation restriction	Head, face, or ear pain; dizziness	Unilateral headache; neck aching; shoulder shrug pain	Unilateral neck/head pain; eye pain
Rotation restriction	Marked — primarily toward the affected side; both directions painful	Mild — rotation toward the opposite side (SCM contracts ipsilaterally)	Mild — neck movement triggers attempts to stretch the trapezius	Marked — toward the affected side
Head tilt	Slight tilt toward involved side	Toward the affected side (strongly tilted = SCM more likely)	None	None
Rest posture	Rigid, avoids movement	Prefers to lie with head supported	Frequently rotates to stretch	No particular rest position
Shoulder motion	Full or near-full	Full	Full	Full
Arm symptoms	None	None	None	None

Active Range of Motion

Cervical rotation testing is the most important movement screen for levator scapulae TrPs.

Rotation:

Most restricted turning the face toward the affected side — TrP pain is reproduced on active contraction
Rotation toward the unaffected side is also restricted due to painful increase in muscle tension on stretch — but to a lesser degree
When TrPs are bilateral (common), rotation is markedly limited in both directions
If rotation is unrestricted in both directions, active levator scapulae TrPs are unlikely

Flexion:

Blocked only at the extreme end of range
A useful clinical indicator: flexion restriction is minimal compared to the severe rotation restriction — this disproportionate pattern is characteristic of levator scapulae involvement rather than posterior cervical muscle involvement

Extension:

Relatively unaffected

Shoulder abduction:

Full abduction requires full upward scapular rotation; this movement can be painfully restricted when levator scapulae TrP tightness limits downward rotation of the scapula
Shoulder abduction restriction in isolation (without the stiff neck presentation) points away from levator scapulae as the primary source

Levator Scapulae Trigger Point Examination

The levator scapulae develops TrP tenderness in two locations:

Central TrP — in the midportion of the muscle belly at the angle of the neck, as the muscle emerges from beneath the anterior border of the upper trapezius. This is the critical TrP — it is the primary pain generator and is frequently overlooked because of its depth beneath the trapezius.
Attachment region TrP — near the scapular attachment, approximately 1.3 cm above the superior angle of the scapula. This is more readily identified but is a secondary site; it represents enthesopathy from sustained taut-band tension generated by the central TrP. Injection of the upper TrP may eliminate tenderness at the attachment region, but not the reverse.

Palpating the Central (Upper) TrP

Patient position: Seated with elbows supported on armrests (small pillows if needed), or lying on the uninvolved side.

Technique:

Slacken the upper trapezius by supporting the arm weight — this allows the examiner's fingers to push the upper trapezius border posteriorly
Push the free border of the trapezius aside to uncover and straddle the levator scapulae belly with the fingers
Gently rotate the patient's face toward the opposite side — this tautens and slightly lifts the levator scapulae against the palpating fingers
Sustained pressure on a taut band may reproduce the referred pain pattern to the angle of the neck and along the vertebral border of the scapula

Clinical note: Successful palpation requires slackening the trapezius sufficiently to reach the levator without tensing the whole muscle so much that the difference between the taut band and adjacent uninvolved tissue is obscured. The supine position may yield better muscle relaxation and improve differentiation between muscle and joint problems.

Palpating the Attachment (Lower) TrP

Patient position: Seated or lying on the uninvolved side.

Technique:

Palpate transversely across the muscle fibres approximately 1.3 cm above the superior angle of the scapula
Straddle the tender region between the fingers and rock it back and forth
Taut TrP bands are exquisitely tender to pressure, but local twitch responses and referred pain are not readily elicited at this lower site

Textural findings: The attachment region may feel indurated and tender; with prolonged stress it may feel gritty (like gravel) or scar-like.

Thermography note: Increased heat emission over the symptomatic shoulder was found in approximately 58% of patients in a clinical series, but thermography was considered an unreliable diagnostic test and should not be used in isolation.

Screening Tests

Mouth Wrap-around Test (Shoulder Girdle Screen)

This is a rapid screening test for involved shoulder-girdle muscles. It tests full active abduction and lateral rotation at the glenohumeral joint, combined with normal scapular mobility.

Procedure:

The patient brings the hand and forearm behind (not above) the head
Slides the hand as far forward as possible, attempting to cover the mouth
The head should be turned no more than 45° and should not be tilted

Normal findings:

Most persons: fingertips cover the mouth to near the midline
Short-armed subjects: to the corner of the mouth
Hypermobile joints: entire mouth covered

Levator scapulae interpretation:

Restriction in this test with levator scapulae TrPs is caused primarily by marked lack of head and neck rotation rather than by true glenohumeral restriction
Pain during the movement is most likely in the immediate vicinity of the TrPs — distinguish this from the subscapularis, where TrP tightness on passive stretch refers pain behind the shoulder and to the wrist, and from infraspinatus and middle deltoid, where pain occurs near the TrP on contraction in the shortened position

Hand-to-Shoulder-Blade Test

This test is normal in levator scapulae TrP involvement. Restriction of this test indicates infraspinatus pathology rather than levator scapulae.

Differential Diagnosis

Splenius Cervicis

Both muscles restrict neck rotation and refer pain to the neck/upper back, and both are commonly involved together in the "stiff neck" syndrome. The splenius cervicis refers pain more to the top of the head and behind the eye on the ipsilateral side rather than to the angle of the neck. Check both muscles when stiff neck is present.

SCM

Strong head tilt (wry neck posture) to one side with the head pointing away from the affected muscle suggests SCM TrP involvement rather than levator scapulae. SCM TrPs also produce a characteristic profile of referred head, face, and ear symptoms and autonomic phenomena absent in levator scapulae involvement. See Muscle:Sternocleidomastoid.

Upper Trapezius

A patient with active upper trapezius TrPs moves the neck frequently to attempt to stretch the trapezius — in contrast, levator scapulae involvement causes the patient to hold the neck rigid. Upper trapezius refers primarily to the occiput and temple; levator scapulae refers to the angle of the neck and vertebral border of the scapula.

Rhomboidei

Rhomboid TrP activity is rarely associated with levator scapulae involvement, despite the anatomical proximity. The rhomboids refer pain along the medial border of the scapula but do not restrict neck rotation.

Scalenus Medius

Active TrPs in the scalenus medius may co-activate with levator scapulae TrPs (common attachments and synergistic action). The scalenes refer arm and hand pain, which is absent in isolated levator scapulae involvement.

Scapulocostal Syndrome

This syndrome — characterised by pain at the superior medial angle of the scapula radiating to the neck — is attributed in the majority of cases to TrPs in the levator scapulae (with or without involvement of the rhomboid minor, subscapularis, and trapezius). The levator scapulae is the primary or a major cause of the scapulocostal syndrome.

Zygapophysial Joint Pain (C4–C5)

The pain pattern of levator scapulae TrPs overlaps the lower two-thirds of the pain referred from the C4–C5 zygapophysial joint but also extends more inferiorly. Important distinctions:

Myofascial TrP referral patterns can be distinctively different for different muscles innervated by the same segments — patterns are not strictly limited to the corresponding sclerotome or myotome
A TrP is confirmed by physical examination of the muscle for palpable taut-band characteristics
Articular dysfunction commonly associated with levator scapulae TrPs may occur at C3, C4, C5, or C6 (or several levels), typically with side bending and rotation to the same side; this coexistence should be identified and treated separately with muscle energy techniques

Bursitis

The relatively frequent presence of bursae near the superior angle of the scapula (see Anatomy above) means that tenderness and referred pain at this location may be caused by bursitis in addition to, or instead of, enthesopathy from TrP taut-band tension. Crepitation palpable at the superior scapular angle has been found in approximately 73% of patients with pain at this location.

Cervical Radiculopathy

The levator scapulae occupies a strategic position to aggravate an existing cervical radiculopathy caused by narrowed neural foramina. TrP-related increased muscle tension can further compress already compromised foramina, intensifying nerve compression and facilitating TrP activation in muscles supplied by those nerves. TrP release may significantly improve radiculopathy symptoms without requiring structural decompression.

Treatment

Trigger Point Release

Prior to any cervical manipulation or stretch, X-ray films of the cervical spine should be reviewed for any condition that would preclude passive neck flexion and rotation.

Spray and stretch (primary approach):

Patient seated, pelvis level, arm on the involved side hanging free
Face turned approximately 30° toward the opposite side (away from the involved muscle)
Vapocoolant spray applied in slow parallel sweeps downward from neck to scapula
Patient takes up slack by reaching downward with the arm on the involved side
Operator cradles the head in one hand to stabilise it
With the other hand, applies gentle steady traction: first on the vertical fibres, then on the diagonal fibres of the levator scapulae
Operator presses downward and anteriorly around the rib cage to depress and abduct the scapula to the soft tissue resistance barrier
Postisometric relaxation: patient inhales while gently contracting the levator scapulae against mild resistance from the operator's hand on the scapula; on slow exhalation the operator takes up the newly available slack
Procedure repeated with varying degrees of head rotation to address all fibre directions

Important clinical notes:

Full release requires releasing parallel myotatic muscles first: splenius cervicis, scalenus medius, scalenus posterior, and posterior cervical muscles must be addressed before full levator scapulae stretch is achievable
If scalene TrPs are also present, it is desirable to also stretch and spray the upper pectoralis major fibres (scalene and pectoralis major TrPs commonly co-exist)
Stretching the levator scapulae shortens the ipsilateral serratus anterior more than usual — this may activate latent serratus TrPs, causing a painful reactive chest cramp; prevent or relieve this by stretching and spraying the serratus anterior (see Muscle:Serratus_Anterior)
If pain shifts to the contralateral neck after treatment, this indicates a lesser but significant degree of TrP activity in the contralateral levator scapulae — apply the same procedure to that side
The antagonistic neck muscles may also need to be stretched and sprayed to allow the levator to lengthen

Scapular mobilisation and interscapular muscle release: When movement is restricted by tightness in other muscles, the interscapular release technique can be applied with the patient sidelying (affected side up). The examiner reaches over the patient's shoulder to grasp the upper vertebral border of the scapula, and under the humerus to grasp the lower vertebral border, then slowly abducts the scapula. Fine-tuning the mobilisation through small degrees of rotation, abduction, elevation, and depression releases the middle and lower trapezius, rhomboidei, and levator scapulae, and facilitates full release of the latissimus dorsi.

Trigger Point Injection

The lower attachment region TrP is more readily located than the central TrP, but injection of the upper (central) TrP is the critical intervention — it may eliminate the lower attachment tenderness, but the reverse is not true.

Upper TrP injection technique:

Patient lies on the unaffected side (affected side up), back toward the operator, with the shoulder close to the edge of the table
A pillow supports the head; the uppermost arm rests on the body with the elbow bent, or may be placed in full medial rotation (hand across back) to produce scapular winging and increase tension in the muscle
Operator presses aside the free upper border of the trapezius to palpate the levator scapulae as it emerges from beneath the trapezius
The TrP (spot of maximum tenderness in the taut band) is fixed against a transverse process
A 3.8 cm (1.5 in), 22-gauge needle is directed anteriorly toward the TrP but away from the rib cage — needle insertion must remain tangential to the rib cage to avoid a pneumothorax
A 27-gauge or acupuncture needle may also be effective with the alternate needling technique (see Concept:Trigger_Point_Injection)

Post-injection: Stretch and spray, moist heat, then active range of motion.

Lower attachment TrP injection:

Patient lies on the unaffected side, bending forward in a round-shouldered posture to thin out the overlying trapezius
The trigger area just above the superior angle of the scapula is located by rubbing the finger transversely across the fibres
Addition of corticosteroid may be helpful in refractory cases at this lower location — not recommended when injecting the upper (central) TrP

This muscle frequently has multiple taut bands and multiple TrPs across its several fascicles, which may require more extensive needling than is typical for most muscles.

Patient Education

Workstation and Chair Setup

Armrests: Chair armrests that are too high elevate the scapulae, shortening the levator scapulae bilaterally and activating latent TrPs. Armrests should support the arms at a height that allows the shoulders to rest in a neutral (non-elevated) position.
Keyboard height: If a keyboard cannot be lowered, raising the seat height by 2–3 cm with a firm cushion placed under the rear two-thirds of the seat (not the front third) can effectively lower the relative keyboard height. The backrest should provide thoracolumbar support.
Head positioning at desk: Always turn the chair — not just the head — to face a visitor squarely. Rearrange furniture so that frequently consulted materials are directly in front of the patient, not to the side.
Myopia correction: Reading materials must be in focus at a comfortable distance. Myopia that causes the patient to lean forward or tilt the head is a significant perpetuating factor. Materials should be placed upright on a book-holder or copy stand.

Telephone Use

Patients who use a telephone frequently or for prolonged periods must eliminate the sustained head-lateral-flexion posture of holding the phone to the ear:

A headset with a microphone is the most effective solution
Shoulder cradles that rest the phone on the shoulder usually still require muscular effort to maintain and are generally not recommended
Changing hands frequently or resting the elbow on the desk to position the phone provides temporary relief

Cane Length

If a walking cane is used, its length must be appropriate. A cane that is too long forces unnatural elevation of the ipsilateral shoulder with each step — the shoulder should remain level during the entire gait cycle.

Sleep Posture

The pillow should be positioned to avoid shortening or cramping of the levator scapulae during sleep. A pillow that is too flat causes the head to drop toward the mattress, shortening the ipsilateral levator; a pillow that is too thick elevates the head toward the contralateral shoulder. Lateral sleeping with a correctly fitted cervical support pillow is generally preferred.

Self-Stretch

Release is most effective performed under a warm shower, seated on a chair or stool with a low back:

Relax the neck muscles as fully as possible and drop the shoulder on the affected side, letting the arm hang free
The contralateral hand assists in turning the head toward the unaffected side and downward toward the axilla to take up slack in the muscle
The free (ipsilateral) hand reaches downward toward the floor to provide additional muscle lengthening
When seated, stabilise the scapula by sitting on the hand of the affected side, then apply a slow steady stretch without jerking
Repeat with varying degrees of head rotation to address all fibre directions

A gravity-assisted self-stretch with postisometric relaxation and respiratory augmentation is described by Lewit — lying on the unaffected side without a pillow (so the head can be laterally flexed and rotated away from the involved muscle), reaching toward the foot of the bed with the arm of the involved side to facilitate levator scapulae elongation.

Note: Lengthening the levator scapulae on one side may produce reactive cramping in the contralateral muscle. The contralateral side should also be gently stretched.

Heat Application

A hot pack or moist heating pad applied to the TrP areas — especially at the end of the workday or before bed — aids in reducing residual TrP tension.

Satellite Trigger Points

The following muscles may develop TrPs as satellites of levator scapulae TrPs, or are frequently co-active due to shared function:

Muscle:Splenius_Cervicis — the most important associated muscle in stiff neck; commonly involved simultaneously and must be released in tandem for full levator stretch
Muscle:Scalene — synergist for neck stabilisation; common TrP co-activation; may require stretch and spray before full levator scapulae release is achievable
Muscle:Trapezius/Upper — a key TrP in the upper trapezius can reflexly activate levator scapulae TrPs
Muscle:Serratus_Anterior — may develop reactive TrPs when levator scapulae is stretched and the serratus is shortened beyond its usual range
Muscle:Rhomboidei — shares scapular attachment region; occasionally co-active in scapulocostal syndrome

Related Pages

Pain:Upper_Back_and_Shoulder — Diagnostic algorithm for upper back and shoulder pain
Muscle:Sternocleidomastoid — Key differential for stiff neck and wry neck presentations
Muscle:Splenius_Cervicis — Co-active in stiff neck; must be released for full levator stretch
Muscle:Scalene — Frequently co-active; synergist for neck stabilisation
Muscle:Trapezius/Upper — Reflex source of levator scapulae TrP activation
Muscle:Rhomboidei — Scapular attachment region overlap; differential for medial scapular border pain
Muscle:Serratus_Anterior — Reactive TrPs may emerge during levator scapulae treatment

References

Travell JG, Simons DG. Myofascial Pain and Dysfunction: The Trigger Point Manual, Volume 1: The Upper Half of Body. 2nd ed. Baltimore: Williams & Wilkins; 1999. Chapter 19.
Travell JG, Simons DG. Myofascial Pain and Dysfunction: The Trigger Point Manual, Volume 1. 2nd ed. Chapter 18 (Overview of the Upper Back, Shoulder, and Arm Region).