Overview
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.
Eligibility
Inclusion Criteria:
- 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
Exclusion Criteria:
- Refusal to participate in the study
- Regular use of opioids
- Known chronic pain symptoms
- Infections in the area of the puncture site
- Presence of a contraindication to ropivacaine
- Presence of a contraindication to metamizole
- Presence of a contraindication to postoperative analgesia with diclofenac
- Secondary forms of osteoarthritis with deformities (i.e. high-grade dysplasia, secondary conditions after trauma, secondary conditions after childtrauma, secondary conditions after childhood hip joint diseases
- Spinopelvic dysbalance, spinal canal stenosis
- Previous operations on the hip/pelvis