Research Article

Novel Motor-Sparing Ultrasound-Guided Neural Injection in Severe Carpal Tunnel Syndrome: A Comparison of Four Injectates

Figure 4

The symptom severity score (SSS) () between postinjection and baseline in the four groups at each time point. Patients in the 5% dextrose water (D5W), platelet-rich plasma (PRP), and hyaluronic acid (HA) groups have more significant improvement compared to those in the NS group at all measured time points. The progressive trend of improvement is , and intergroup differences reached significance at the 1st month (PRP vs. HA) and the 6th month (D5W vs. HA). SSS: symptom severity score; D5W: 5% dextrose water; PRP: platelet-rich plasma; HA: hyaluronic acid.