Rotator cuff tear

Definition

Tear of weakened rotator cuff due to trauma or abuse

Rotator cuff, four muscles tendons supporting the scapula and humerus, consists of supraspinatus, infraspinatus, teres minor, and subscapularis. It is prevalent in occupations requiring repetitive postures or in people who perform active exercise. A shoulder dislocation in patients older than 40 years may cause rotator cuff tear.

Symptoms

Pain and powerless when lifting the arm or an object

  • 1.Delicate rustling sound when moving the shoulder
  • 2.Difficulty in abducting the arm if supraspinatus is torn
  • 3.Difficulty in pulling in the arms to the body if subscapularis is torn
  • 4.Difficulty in pushing out the arms if infraspinatus is torn

Cause

  • Among the younger population, falling while the arm was extended
  • Among the old, friction between rotator cuff and acromion

Treatment

Diagnosis : X-ray, CT, MRI

Non-surgical treatment

Loss or tear in less than 50% of tendon thickness

  • Injection
  • Rehabilitation
  • Extracorporeal shockwave

Surgical treatment