Ultrasound Guided Activated and Non Activated Platelet Rich Plasma Injection Versus Hydro Dissection by Steroids.

Inclusion Criteria

• •Patients with mild to moderate idiopathic Carpal Tunnel Syndrome with clinical manifestations, diagnosed by electrophysiological study and ultrasound. CTS grading will be performed on basis of an electrophysiological study following Stevens classification (Stevens; 1997).
• •* Early CTS: abnormal findings only in both comparative studies (≥0.5ms difference in peak latency)
• •* Mild CTS: abnormal median sensory study (peak latency ≥3.5ms)
• •* Moderate CTS: abnormal median sensory study and prolonged median distal motor latency (onset latency ≥4.5ms)
• •* Sever CTS: any of the above mentioned abnormalities together with the evidence of axonal loss either by absent median sensory response, low amplitude, or absent median motor response (\<2µV)