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FRONT Block for Quality of Recovery After Total Hip Arthroplasty

Effect of Femoral Rami and Obturator Nerve Trunk (FRONT) Block on Postoperative Quality of Recovery After Total Hip Arthroplasty: A Prospective Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07458360
Enrollment
80
Registered
2026-03-09
Start date
2026-04-25
Completion date
2026-07-05
Last updated
2026-04-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis of the Hip, Postoperative Pain, Quality of Recovery

Brief summary

This prospective randomized controlled trial evaluates the effect of ultrasound-guided unilateral Femoral Rami and Obturator Nerve Trunk (FRONT) block on postoperative quality of recovery in patients undergoing elective total hip arthroplasty.

Detailed description

Total hip arthroplasty (THA) is associated with significant postoperative pain that may impair early recovery. The Femoral Rami and Obturator Nerve Trunk (FRONT) block is a regional anesthesia technique targeting sensory innervation of the anterior hip capsule and may improve postoperative recovery while preserving motor function. This prospective randomized controlled trial aims to evaluate whether the addition of ultrasound-guided unilateral FRONT block to standard multimodal analgesia improves postoperative quality of recovery in patients undergoing THA.

Interventions

PROCEDUREFRONT Block (Femoral Rami and Obturator Nerve Trunk Block)

Ultrasound-guided unilateral FRONT block targeting the femoral rami and obturator nerve trunk will be performed

Standardized postoperative multimodal analgesia including intravenous paracetamol, nonsteroidal anti-inflammatory drugs, and rescue opioid analgesia as required.

Sponsors

Konya Meram State Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Outcome assessments will be performed by independent researchers blinded to group allocation.

Intervention model description

Participants will be randomized in a 1:1 ratio to receive either an ultrasound-guided unilateral FRONT block plus standard multimodal analgesia or standard multimodal analgesia alone. Outcomes will be compared between the two parallel groups.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥ 18 years * Scheduled for total hip arthroplasty under spinal anesthesia * American Society of Anesthesiologists (ASA) physical status I-III * Ability to understand and complete the QoR-15 questionnaire * Provided written informed consent

Exclusion criteria

* Refusal to participate * Contraindication to spinal anesthesia or regional block * Allergy to study medications * Chronic opioid use (daily use for more than 3 months) * Neurological or neuromuscular disorders affecting the lower extremities * Infection at the injection site * Coagulation disorders * Cognitive impairment prevents questionnaire completion

Design outcomes

Primary

MeasureTime frameDescription
Postoperative Quality of Recovery (QoR-15 Score)24 hours after surgeryPostoperative quality of recovery will be assessed using the validated Quality of Recovery-15 (QoR-15) questionnaire. The total score ranges from 0 to 150, with higher scores indicating better recovery.

Secondary

MeasureTime frameDescription
Quality of Recovery (QoR-15) Score at 48 Hours48 hours after surgeryQuality of recovery will be assessed using the validated Quality of Recovery-15 (QoR-15) questionnaire (0-150, higher scores indicate better recovery).
Postoperative Pain Intensity2, 6, 12, 24, and 48 hours after surgeryPain intensity will be assessed using an 11-point Numeric Rating Scale (NRS), where 0 indicates no pain and 10 indicates the worst imaginable pain.
Total Opioid Consumption0-24 hours after surgeryTotal postoperative opioid consumption during the first 24 hours will be recorded and converted to intravenous morphine milligram equivalents (MME).
Time to First Rescue AnalgesiaWithin the first 24 hours after surgeryTime from the end of surgery to the first rescue opioid administration will be recorded
Time to First MobilizationWithin the first 48 hours after surgeryTime from the end of surgery to first assisted ambulation will be recorded
Quadriceps Motor Strength0-48 hours after surgeryQuadriceps muscle strength will be evaluated using the Medical Research Council (MRC) scale ranging from 0 (no contraction) to 5 (normal muscle strength).

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 29, 2026