13.07.2015 Views

Guidelines for Complications of Cancer Treatment Vol VIII Part B

Guidelines for Complications of Cancer Treatment Vol VIII Part B

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Incidence:Depends upon the type <strong>of</strong> neck dissection. (LOE-3)Classical Radical Neck Dissection (RND) 66– 100%.Modified radical ND (MRND) 28 – 45%.Supra-omohyoid ND (SOHD) 15 –20%.&other selective NDEtiology Injury to spinal accessory nerve is the most importantcause <strong>of</strong> shoulder dysfunction after neck dissection.Complete transection <strong>of</strong> the nerve is almost alwaysassociated with shoulder dysfunction. Other causes <strong>of</strong>injury area. Thermal injury by electro-cauteryb. Traction injuryc. De-vascularisation <strong>of</strong> nerveThese injuries most commonly occur while dissecting levelIIb and level V lymph nodesThe other causes are Injury to cervical plexus <strong>of</strong> nerves supplying scapulohumeralgirdle muscles like rhomboids, levator scapulaeand scalenes causing their weakness. Secondary glenohumeral stiffness resulting frompostoperative <strong>for</strong>ced immobility also contributes toshoulder dysfunction (LOE-3).Diagnosis Assessment <strong>of</strong> active and passive movements <strong>of</strong> shoulderjoint Goniometric evaluation238

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