Shoulder Joint – Problems & Management

The shoulder joint is the most mobile and hence most dislocating, ball and socket joint. There are tendons (rotator cuff & biceps) inside the joint to compress the ball into the socket for stability. In addition, ligaments around the socket provide stability at the extreme range of movements like throwing which is the fastest human motion on earth. This makes shoulder prone to various injuries as well as faster wear and tear of tendons, cartilage, and bone.
Shoulder being a complex of 5 joints and overlay of cardiac and cervical pain makes the diagnosis a challenge. Cardiac pain starts from the Left side of the chest, radiates to an inner side of the arm, (distribution in C7, 8-T1). Cervical spine pain radiates below the elbow to fingers, a patient is better in lying down position, trapezial irritation is present, Spurling sign is positive & neurological signs may be present. Shoulder pain gets referred to an outer side of the upper arm, the distribution being the same as in cervical pain but in contrast, it increases on lying down (increasing even more in the night) and is better in sitting posture.

Shoulder Problems

PROBLEM OF STABILITY

Traumatic dislocation / Atraumatic instability / Labral tears like SLAP: These are the most common sports injuries of the shoulder and produce instability. They start in teenage and never heal by themselves until surgically repaired. Nowadays, all such ligamentous injuries of the shoulder are treated with arthroscopic technique (Key-hole surgery) and this gives an edge over open technique. In many cases, the labrum is detached from the socket all around 360⁰ which cannot be seen by open surgery and even highest quality of MRI and expertise in imaging falls short of diagnosing them pre-operatively. If we don’t treat such injuries, they become recurrent in more than 99% of cases and shoulder keeps on dislocating, compromising the quality of life severely.

PROBLEM OF MOTION

Frozen shoulder / Post-traumatic or stiffness: This is not the commonest condition. This is a self-recovering condition and happens more frequently in diabetes, thyroid disorders and after heart/breast surgeries. Essential criteria for diagnosis are-1) Restricted active and passive movements in all directions 2) No history of surgery/injury 3) True AP and Axillary x-rays of the shoulder must be normal to rule out arthritis which behaves in a similar fashion. One good thing about frozen shoulder is that it never happens again in the same shoulder. So if your shoulder is stiff for more than 3 years, chances are that you are having arthritis of the shoulder and not frozen shoulder. Also, if you are getting frozen shoulder time and again, then you are having rotator cuff disease/tear and not frozen shoulder.

PROBLEM OF SMOOTHNESS

Impingement is the friction between rotator cuff tendons and undersurface of the shoulder blade. There is no stiffness but pain at certain angles. This can be successfully treated with medicines, steroid injection, and exercises. Untreated, it may progress to tear of the tendons. Arthritis of the shoulder is of 6 types and is very common but mistakenly passed as frozen shoulder usually. Every 14th patient with bilateral knee osteoarthritis is having shoulder arthritis. Moreover, end-stage of rotator cuff tears also leads to arthritis which can be successfully treated with anatomical / reverse shoulder replacement. Our unit, at FBI, is leading in shoulder replacement in the upper part of the country.

PROBLEM OF STRENGTH

Incomplete / complete tears of the rotator cuff tendons are indeed the commonest problem in the shoulder joint. This goes unrecognized and can lead to constant pain, weakness and loss of motion. Recent advances in arthroscopic techniques and instrumentation has made it possible to repair even largest tears with success.

In conclusion, all the problems of the shoulder can be treated with 95-97% success rate not only in terms of pain relief but function as well but we have to get the diagnosis right, manage it with proper expertise and persevere in rehabilitation.

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