{"id":55,"date":"2018-06-11T04:49:00","date_gmt":"2018-06-10T20:49:00","guid":{"rendered":"https:\/\/www.shoulderandkneesurgery.com.au\/?page_id=55"},"modified":"2022-09-29T02:19:11","modified_gmt":"2022-09-28T18:19:11","slug":"shoulder-bursitis-impingement-perth","status":"publish","type":"page","link":"https:\/\/www.shoulderandkneesurgery.com.au\/resources-shoulder\/shoulder-bursitis-impingement-perth\/","title":{"rendered":"Shoulder Bursitis"},"content":{"rendered":"\t\t
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Shoulder Surgeon Perth for Rotator Cuff<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Shoulder Bursitis<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tGet in touch<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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ROTATOR CUFF SURGERY | SHOULDER SURGEON PERTH<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Shoulder bursitis | Impingement | Rotator cuff tendonitis | Subacromial bursitis<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\tThe terms impingement, rotator cuff tendonitis, and subacromial bursitis, all refer to a spectrum of the same condition. \t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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ROTATOR CUFF SURGERY | SHOULDER SURGEON PERTH<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Anatomy<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\"ShoulderThe shoulder is one of the most complex joints in the human body. It is complex because it allows a range of motion greater than any other joint. The shoulder is made up of the shoulder socket (called the glenoid, which is part of the scapular or shoulder blade) and the humerus which is the upper bone of the arm.<\/p>

The collarbone or clavicle also contributes to the shoulder joint. Movement of the shoulder occurs at two sites. Firstly, the shoulder ball \u201chumeral head\u201d moves within the socket (glenoid). Secondly, the entire shoulder blade or scapular moves over the chest wall or ribcage.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ball and socket<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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There are numerous ball and socket joints within the human body. The shoulder joint is remarkable because relatively speaking it has the largest ball in the smallest socket. This is necessary to allow its wide range of motion. It is analogous to a golf ball sitting on a tee. The disadvantage of this arrangement is that it increases the risk of dislocation. That is to say that it is not hard to knock the golf ball off the tee.<\/p>

The hip joint is an example of a ball and socket joint where there is a very large socket which strongly resists any dislocation of the ball out of the socket. Like most joints in the human body, a smooth surface coating not unlike Teflon, covers the ball and the socket.<\/p>

This is called the articular cartilage. It allows for easy movement of the two surfaces over one another with minimal friction. It is lubricated by joint fluid. Because the shoulder socket is relatively small it has a rim of strong cartilage tissue around it called the labrum. The labrum affectively increases the size of the socket, adds stability and improves cushioning.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Shoulder capsule<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\"ShoulderThere is a capsule around the shoulder joint which extends from the edges of the socket to the margins of the ball. The capsule is thickened and strengthened in places by ligaments referred to as the glenohumeral ligaments which pass from the socket to the ball. The inner surface of the capsule is lined by synovium which produces the fluid which lubricates the joint. All fluid containing joints have a synovium.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Rotator cuff<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The next layer outside of the capsule is the rotator cuff. This is a convergence of four major tendons. These tendons help hold the ball centered in the socket and also assist in movement of the shoulder joint. Each of these tendons arises from a muscle. The muscles that form the rotator cuff are the muscles surrounding the shoulder blade. The four muscles of the rotator cuff are:<\/p>

  • Supraspinatus:<\/strong> This muscle sits at the top of the shoulder blade and the tendon of supraspinatus runs over the top of the ball. It is the tendon which is most commonly inflamed or torn.<\/li>
  • Subscapularis:<\/strong> This muscle sits at the front of the shoulder blade (thus it is between the shoulder blade and the ribcage). It then passes to the front of the ball and helps turn the arm inwards.<\/li>
  • Infraspinatus: This sits at the back of the shoulder blade below the spine of the scapular and passes to the back of the ball of the shoulder joint. It helps turn the arm outwards.<\/li>
  • Terres minor: Sits below infraspinatus. It is the smallest of the muscles of the rotator cuff. It also assists in rotating the arm outwards.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Bursa<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\t\tThe subacromial bursa is a lubricating sac which sits between the rotator cuff tendons and the bone above them. This bone is called the acromion and is part of the shoulder blade or scapular. The bursa helps tendons glide smoothly when they come in contact with bone or at prominent areas on your body. For example we have a bursa at the elbow and also at the knee and the back of your heel.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    ROTATOR CUFF SURGERY | SHOULDER SURGEON PERTH<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Conditions<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • Impingement: Impingement refers to contact between the tendons of the rotator cuff and the undersurface of the acromion bone when you raise your arm. The bone impinges upon the tendon and the intervening subacromial bursa. This causes irritation of the tendon and pain.<\/li>
    • Rotator cuff tendonitis: This refers to inflammation or damage of the rotator cuff tendons.<\/li>
    • Subacromial bursitis: The bursa becomes inflamed and swollen with fluid accumulation as a result of impingement.<\/li><\/ul>


      It is important to recognize that the tendonitis and bursitis occur secondary to the impingement process.<\/p>

      Impingement occurs in a younger athletic population when they are involved in sports with repetitive overhead motion such as swimming and tennis. Throwing sports such as baseball are also a common cause. Some occupations involve similar repetitive overhead activities which can precipitate impingement.<\/p>

      Impingement can occur in any age group as a result of a relatively minor injury. Injuries that results in swelling of the rotator cuff tendons causes the tendons to rub against the bone of the acromion. This causes more inflammation and sets up a vicious cycle of rubbing causing swelling and swelling causing more tendon rubbing.Impingement occurs in an older age group as a result of subacromial spur formation. The bone spur reduces the available space for tendon movement and rubs against the tendon.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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      ROTATOR CUFF SURGERY | SHOULDER SURGEON PERTH<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Symptoms<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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