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A Saline Injection Could Offer Longer Relief From Carpal Tunnel Pain
ScienceAlert • • world
Key Points:
- A small trial found that injecting saline around the trapped nerve in carpal tunnel syndrome (CTS) patients provides longer-lasting symptom relief than steroid injections, with benefits persisting for six months.
- The procedure, called hydrodissection, uses ultrasound guidance to inject sterile saline around the nerve, separating it from surrounding tissues and allowing freer nerve movement.
- The study involved 39 adults and 63 wrists, comparing three treatments: saline hydrodissection alone, steroid injection alone, and hydrodissection with steroid; saline hydrodissection alone showed sustained pain relief while steroid-only relief diminished over time.
- Ultrasound imaging confirmed greater nerve swelling reduction in hydrodissection groups, supporting the idea that physically separating the nerve from tissues contributes to symptom improvement.
- The procedure is quick, outpatient, and safe with minor temporary side effects; however, larger and longer studies are needed to confirm effectiveness and compare it with surgery, which remains necessary for severe CTS cases.
