Elbow Varus Stress: Causes, Symptoms & Advanced Physiotherapy Treatment post thumbnail image

Elbow Varus Stress

What is Elbow Varus Stress?

“Elbow varus stress” refers to a force applied to the elbow joint that pushes the forearm inward, towards the midline of the body. This places stress primarily on the lateral collateral ligament (LCL) complex of the elbow, which is the main stabilizer against varus forces.

Causes of Elbow Varus Stress Injuries

Injuries resulting from varus stress on the elbow are less common than those from valgus stress (which often affects throwing athletes). However, they can occur due to:

  • Acute Trauma:
    • Fall on an outstretched arm (FOOSH): If the arm is in a position that forces the elbow inward, this can lead to LCL injury.
    • Direct blow to the medial (inner) side of the elbow: This forces the forearm into varus, stressing the lateral ligaments.
    • Elbow Dislocations: Varus stress injuries, particularly involving the lateral ulnar collateral ligament (LUCL), are frequently associated with posterior dislocations of the elbow. In some cases, damage to the LUCL can lead to posterolateral rotatory instability (PLRI), where the radius and ulna subluxate or dislocate from the humerus in a characteristic rotational pattern.
    • Traumatic varus posteromedial rotatory instability: A specific type of injury pattern caused by trauma that involves a varus force.
  • Repetitive Stress/Overuse: While less common than in valgus instability, certain activities involving repetitive or sustained varus stress, or chronic low-level stress, could potentially lead to gradual attenuation or microtrauma of the LCL complex over time. This is often seen in activities requiring a strong push-off with the arm.
  • Iatrogenic (Post-Surgical): In rare cases, extensive surgical release for conditions like lateral epicondylitis (tennis elbow) can inadvertently damage the LCL complex, leading to iatrogenic (medically-induced) varus instability.
Symptoms of Elbow Varus Stress Injuries

Symptoms depend on the severity of the LCL injury

  • Lateral Elbow Pain: Pain on the outside of the elbow, often reproducible with varus stress or certain movements.
  • Instability/Looseness: A feeling that the elbow is “giving way,” “catching,” or “popping out,” especially during activities like pushing off from a chair, doing push-ups, or performing activities that involve forearm rotation (supination/pronation).
  • Clicking/Popping: Audible or palpable sensations during elbow movement, particularly with rotation.
  • Apprehension: A feeling of fear or reluctance to move the elbow into certain positions due to a fear of it dislocating.
  • Weakness: Perceived weakness due to instability or pain inhibition.
  • Limited Range of Motion: While less common than pain and instability, severe cases or chronic instability can lead to some restriction in movement.
Advanced Physiotherapy for Elbow Varus Stress Injuries
  • Advanced Physiotherapy Techniques
  • Manual Therapy
    • Joint Mobilizations: Gentle, rhythmic oscillations or sustained glides (e.g., humeroradial or humeroulnar joint mobilizations) to address stiffness, improve joint play, and normalize arthrokinematics. These are carefully applied to non-unstable directions to avoid exacerbating instability.
    • Soft Tissue Mobilization: To address muscle guarding, spasms, and tightness in the surrounding forearm, triceps, and biceps muscles that may be contributing to pain or altered mechanics.
    • Mobilization with Movement (MWM): A technique where the therapist applies a sustained accessory glide while the patient actively moves the joint into a restricted or painful range. This can be particularly effective for restoring pain-free movement.
  • Myofascial Release (MFR)
    • Focuses on releasing restrictions within the fascial system, which is a connective tissue network surrounding muscles, bones, and organs.
    • For elbow varus stress, MFR might target tight fascia in the forearm extensors (lateral side), triceps, or even the shoulder girdle, as tightness in these areas can influence elbow mechanics and perpetuate pain or dysfunction.
    • Techniques involve sustained pressure and stretching to release fascial restrictions.
  • Instrument-Assisted Soft Tissue Mobilization (IASTM)
    • Uses specialized tools (e.g., stainless steel instruments) to effectively locate and treat soft tissue dysfunction.
    • Applied with specific strokes to address fascial restrictions, scar tissue, muscle adhesions, and tendinopathies (e.g., in the common extensor origin if associated with lateral epicondylitis).
    • IASTM can increase blood flow, promote fibroblast proliferation, and reorganize collagen fibers, aiding in tissue healing and improving flexibility. It’s often used around the lateral epicondyle and forearm extensor muscles.
  • Dry Needling
    • Involves inserting thin filament needles into myofascial trigger points (hyperirritable spots in taut bands of muscle).
    • For elbow varus instability, dry needling can be used to release tension and reduce pain in overactive or spastic muscles that might be compensating for instability (e.g., forearm extensors, supinators, triceps).
    • By deactivating trigger points, it can improve muscle function, reduce pain, and facilitate more effective strengthening exercises. It can also help with associated conditions like lateral epicondylitis.
  • Kinesiology Taping
    • Unlike rigid athletic tape, kinesiology tape (K-Tape) is elastic and aims to provide support, reduce pain, improve circulation, and enhance proprioception without severely restricting movement.
    • For varus instability, K-Tape can be applied to provide gentle support to the lateral side of the elbow, offering proprioceptive feedback to the patient to avoid provocative movements.

  It can also be used to facilitate muscle activity (e.g., triceps) or to reduce swelling and pain in the area. Specific taping techniques can help guide the elbow towards a more stable position during movement.

  • Progressive Strengthening and Stability Training
    • Isometric Exercises: Early on, gentle isometric contractions of elbow flexors, extensors, and forearm muscles to maintain muscle activation without stressing the healing ligaments.
    • Proprioception and Neuromuscular Control: Exercises to improve the joint’s awareness of its position and movement in space. This is critical for preventing re-injury. Examples include balance exercises, rhythmic stabilizations, and perturbation training.
    • Concentric and Eccentric Strengthening: Gradually progressive exercises for the muscles stabilizing the elbow (biceps, triceps, forearm flexors and extensors, supinators, pronators). Eccentric exercises (muscle lengthening under tension) are particularly important for tendon health and load absorption.
    • Scapular Stability and Shoulder Strength: As the elbow is part of a kinetic chain, addressing any weakness or dysfunction in the shoulder and scapular stabilizers is crucial for overall upper limb function and reducing compensatory stress on the elbow.
    • Core Stability: A strong core provides a stable base for all limb movements.

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