The Significance of Peripheral Input

• Status: Recruiting
• Trial end date: 2021-05-01
• Target enrollment: 0
• Participant gender: All

Summary

The investigators want to examine trigger point injections of local anesthetics, in patients with post operative neuropathic pain, determine changes in sensory disturbances such as allodynia, hyperalgesia and thermal sensitivity and examine whether trigger point injections will attenuate pain in rest and activity.

• Phase: N/A
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Bispebjerg Hospital
• Treatments: Ropivacaine

Criteria

Inclusion Criteria:

• Age > 18 years old

• Patients with chronic pain (daily VAS pain scores >30 mm) for at least 3 months after knee, shoulder or foot surgery

• Patients with at least one identifiable trigger point in relation to incision from the knee, shoulder or foot surgery. A trigger point is defined as an ar-ea in relation to the incision from surgery, in which a light pressure from a cotton pin radiate pain to the nearby area, and exudes a motor reflex causing withdrawal of the leg

• A written informed consent to participate in the study after having fully understood the contents of the protocol and restrictions

Exclusion Criteria:

• Patients who cannot cooperate

• Patients who cannot understand or speak Danish.

• Patients with allergy to the drugs used in the study

• Patients in treatment with vitamin K antagonists.

• Patients with other pain conditions

• Patients with diabetes