Comparison of Analgesic Effectiveness Between Pericapsular Nerve Group (PENG) Block and Lumbar Erector Spinae Plane Block in Patients Undergoing Total Hip Arthroplasty With Spinal Anesthesia: a Randomized Controlled Trial
Led by Başakşehir Çam & Sakura City Hospital · Updated on 2026-05-07
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13 weeks
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What this Trial Is About
Researchers are evaluating the pain relief effectiveness of two nerve block techniques, the Pericapsular Nerve Group (PENG) Block and the Lumbar Erector Spinae Plane Block (L-ESP), in adults undergoing total hip arthroplasty with spinal anesthesia. The study aims to determine which nerve block provides better postoperative pain control based on pain scores, opioid use, and patient satisfaction. This research addresses the significant pain and movement limitations patients face after hip replacement surgery and seeks to improve recovery and reduce complications.
Participants will be randomly assigned to receive either the PENG block or the L-ESP block before surgery. Both groups will have spinal anesthesia during the operation. Following surgery, all patients will use patient-controlled analgesia (PCA) to manage opioid intake, and pain levels will be recorded at multiple time points up to 24 hours after the nerve block. Additional rescue pain medication will be given if needed. Various parameters such as hemodynamic stability, opioid consumption, pain scores, patient satisfaction, and hospital stay length will be compared between the two groups.
Throughout the 24-hour postoperative period, participants will be closely monitored for pain intensity using the Numeric Rating Scale at scheduled intervals from baseline up to 24 hours after surgery. Researchers will also track opioid use, time to first pain sensation, rescue medication use, vital signs, nausea, vomiting, and any complications related to the nerve blocks. Patient satisfaction will be assessed via questionnaire, and overall recovery measures including early mobilization and length of hospital stay will be documented to evaluate the effectiveness and safety of each nerve block technique.
CONDITIONS
Brief Title
Comparison of Pain Relief Methods for Hip Surgery: A Study on Two Different Nerve Block Techniques
Who Can Participate
Age: 18Years +
All Genders
Healthy Volunteers
Eligibility Criteria
You may qualify if you...
Voluntary willingness to participate in the study.
Patients who will undergo Total Hip Arthroplasty surgery.
Patients aged over 18 years.
ASA score I-II-III.
Patients who are fully oriented and can cooperate.
You will not qualify if you...
ASA score IV-V.
Patients who refuse to participate in the study.
Patients under 18 years of age.
Presence of active infection in the area to be operated on.
Chronic pain and continuous analgesic use.
Patients with coagulation disorders.
Patients who cannot cooperate with postoperative pain follow-up.
Patients with allergies to local anesthetic agents.
Presence of neuropathy or myopathy in the operated extremity.
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Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Treatment
Duration - Day of surgery and first 24 hours postoperatively
Participants receive either a Pericapsular Nerve Group (PENG) block or a Lumbar Erector Spina Plane block before undergoing total hip arthroplasty under spinal anesthesia. Pain levels and opioid consumption are monitored closely during and after surgery.
1 preoperative visit and multiple assessments during the first 24 hours after surgery
Impact of the pericapsular nerve group (PENG) block on postoperative analgesia and functional recovery following total hip arthroplasty: a randomised, observer-masked, controlled trial.
The Analgesic Effects of Preemptive Ultrasound-Guided Pericapsular Nerve Group Block in Comparison with Erector Spinae Plane Block in Elderly Undergoing Hip Arthroplasty: A Randomized Controlled Trial.