Validation of a Placebo Dry Needling Protocol in Patients With Non-specific Neck Pain

"The placebo dry needling protocol will be performed in the same position, with identical antiseptic measures and the same number of simulated incisions as the real dry needling protocol, using DONGBANG AcuPrime® 0.30 x 30mm blunt-tipped placebo needles with a retractable handle. These needles simulate the sensation of needle contact without penetrating the skin. The therapist will hold the needle and guide tube, pressing the tube against the skin and simulating needle manipulation. Changes in pressure direction will mimic the real technique. The protocol will end with compression using an alcohol swab and an upper trapezius stretch.~Participants in both groups will receive the same information about the sensations of the dry needling procedure. At the beginning, they will be informed that they may or may not feel the needle insertion. They will also be told that the physiotherapist will manually manipulate the needle multiple times during the procedure."

To perform the actual SP, patients shall be asked to lie prone with arms close to the body. The dry needling shall be performed with a 0,30 × 30 mm DN needle (APS Regular Agupunt) with a guide tube. The therapist shall first clean the area with alcohol. The trapezius muscle is then firmly grasped with a clamp between the thumb and index finger, so that the needle is directed deep into the index finger until the tip of the needle is felt to be approaching (33). This procedure involves an approximate insertion of the needle to a depth of 30 mm and ensures the intramuscular penetration necessary for dry needling. Puncture of the PGM shall be performed using the Hong technique (34), performing up to 12 inlets and outlets, at a frequency of 1 Hz. When the needle is withdrawn, the area is firmly compressed with cotton wool for 60 seconds. Finally, the upper trapezius muscle is stretched, following the technique originally described by Simons (35).