ABSTRACT
Wrist drop occurs as a consequence of radial nerve palsy. From the estimates, it is found that each person receives at least two injections annually in the developing countries, and 50 percent of these injections are not considered safe.(1) Unfortunately, trauma to peripheral nerves isn't unusual in our country. Though reliable statistics are not available at the national level, the incidence of injury to peripheral nerves, especially to radial nerve, is on the rise, largely due to increased road traffic accidents and increased violence in our society as a whole.(1) Radial Nerve damage occurring as a consequence of intramuscular injection application is comparatively less common than sciatic nerve injury.(2) When therapeutic and prophylactic agents are applied in the form of intramuscular injections into buttock and arm, occasionally damage to the peripheral nerves can occur. Those whose radial nerve function has been compromised would not be able to actively extend extensor muscles of the wrist and digits since the radial nerve innervates them. As a result, the hand hangs flaccidly in a flexed position when the patient attempts to move the arm to a horizontal position. Patients may also experience paraesthesia, hypoesthesia, numbness and other sensory disturbances. Simple, pain-free sensory deficits may be functionally less significant because they involve the anatomical snuffbox and the radial dorsum of the hand. Injury to radial nerve results in motor function impairment leading to weakness during extension of the forearm, wrist, and fingers. However, wrist extension may be relatively spared because common radial nerve innervates the extensor carpi radialis longus muscle proximal to its division.(3)The inability of a person to extend his wrist and/or fingers due to the above mentioned causes is called "wrist drop" or "finger drop."(4) The other causes of wrist drop include stab wound injury to shoulder area where the terminal branch of posterior cord of brachial plexus is given off as radial nerve and any agent causing persistent injury to nerve. Interventions for wrist drop include splinting, electrical stimulation, exercises for hand and fingers, surgery, and drug therapy. The present case is diagnosed with Wrist Drop caused due to the injection induced injury to the radial nerve of left side. Needle length recommendation is very important before inducing the injection in male and female.(4)In the developing countries, common diseases are treated with the application of injections. When therapeutic and prophylactic agents are applied in the form of intramuscular injections into buttock and arm, occasionally damage to the peripheral nerves can occur. There are various reasons for the injury to the peripheral nerves. In case of wrist drop, reasons for the injury to the radial nerve may be gun-shot injury, humeral shaft fracture, misplaced injection and compression or ischemia