The aim of this study is to investigate the analgesic efficacy of the pericapsular nerve group (PENG) block during the implantation of hip endoprostheses. The study is designed as a prospective randomized double-blind study and the study participants were randomized into 2 arms and either 20 ml ropivacaine 0.5% (verum group) or 20 ml physiological saline solution (placebo group) will be applied.
planned cementless hip TEP operation for primary coxarthrosis via minimally invasive anterolateral approach using the identical implant system (Taperloc stem, Plamafit cup)
Patient capable of giving consent
Informed consent has been obtained
age > 18 years
Refusal to participate in the study
Regular use of opioids
Known chronic pain symptoms
Infections in the area of the puncture site
Parallel
Ropivacaine
DrugPENG block with ropivacaine
Physiological saline
Other interventionPlacebo control
Rate of postoperative opioid administration
The primary objective is to investigate the influence of the PENG block on the need for postoperative ntravenously opioid administration within the first hour in the recovery room.
Quantity of total opioid consumption
Assessment of total opioid consumption until second postoperative day in both arms
Intensity of postoperative pain
Subjective perception of postoperative pain, using the numeric rating scale.
Intensity of postoperative nausea and vomiting
Assessment of postoperative nausea/vomiting using the PONV Score
Postoperative recovery
Assessment of postoperative recovery using the QoR15 score
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Diakonie-Klinikum Stuttgart
Lead sponsor
University Hospital Tuebingen
Collaborator
