NCT06153277

Does Edema Affect the Adjustment of TENS Amplitude

Does Edema After Knee Arthroplasty Affect the Adjustment of TENS Amplitude

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 125 (estimated)
• Sponsor: Karamanoğlu Mehmetbey University · Academic / Other
• Sex: All
• Age: 40 Years
• Healthy volunteers: Not accepted

Summary

The goal of this pre-post clinical trial is to compare the amplitude settings of three different frequency TENS modes (Conventional TENS, LF TENS, HF TENS) in patients who had undergone total knee arthroplasty, both with the preoperative state and with the contralateral knee. The main question it aims to answer is: Can the electrical resistance of edematous tissue be affected and change the TENS amplitude setting? Participants will be evaluated before and after surgery. For each TENS modulation the amplitude at which tingling is felt, the current is clearly felt, and is maximum tolerated and/or muscle contraction occurred, will be documented. TENS amplitudes for all three TENS modes will be compared, both with the preoperative state and with the contralateral knee.

Detailed description

Transcutaneous Electrical Nerve Stimulation (TENS) is used for the treatment of various acute and chronic pain conditions. It has been shown to increase participation by providing pain control in the rehabilitation of patients undergoing surgery. Evidence is accumulating that it improves patient comfort and reduces the use of analgesic medication in the early postoperative period, so TENS is included in postoperative pain management guidelines. On the other hand, peripheral blocks have become the preferred method of anesthesia in order to avoid the complications of general anesthesia. When adjusting TENS amplitude for postoperative pain control in these patients, either low amplitudes are preferred or for the amplitude adjustment as a reference, the contralateral side without block is used. Cautious application is recommended in patients with sensory impairment, impaired cognitive functions, and pediatric patients. In such cases, it is preferable to use TENS at low amplitudes to avoid complications in daily practice. However, using the contralateral extremity as a reference may cause undesirable results as the electrical resistance of the edematous tissue may change. In this study, it was aimed to compare the amplitude settings of three different frequency TENS modes (Conventional TENS, LF TENS, HF TENS) in patients who had undergone total knee arthroplasty, both in the preoperative state and with the contralateral knee.

Conditions

• Edema Leg
• Pain

Timeline

• Start date: 2023-12-07
• Primary completion: 2026-04-01
• Completion: 2026-04-01
• First posted: 2023-12-01
• Last updated: 2025-12-11

Locations

1 site across 1 country: Turkey (Türkiye)