ReviewBioMed research international2017
Ultrasound-Guided Obturator Nerve Block: A Focused Review on Anatomy and Updated Techniques.
Review in BioMed research international, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07078773 (Application of Pericapsular Nerve Group), which is not on this map. Cited by 32 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Application of Pericapsular Nerve Group (PENG) Block in Transurethral Resection of Bladder Tumors
Who cites it
32 citing papers in PubMed, 140 citations in OpenAlex.
- Comparison of three obturator nerve block techniques for injectate spread into the obturator canal: a randomized controlled trial.Journal of anesthesia · 2022Trial
- Obturator Nerve Block Is Associated with Improved Histopathological Specimen Quality and Fewer Perioperative Complications During TURBT for Lateral Bladder Wall Tumors.Journal of clinical medicine · 2026Article
- Suprainguinal versus infrainguinal fascia iliaca compartment block for hip surgery: a systematic review and meta-analysis.Annals of medicine and surgery (2012) · 2026Article
- Article
- Clinical Implications of Anatomical Variations in Nerves and Adjacent Structures for Regional Anesthesia: A Narrative Review.Pain and therapy · 2026Review
- Hip abduction with hip extension produces the largest obturator nerve displacement: a cadaveric investigation.The Journal of manual & manipulative therapy · 2026Article
- A Didactic Ultrasound Manual for identifying lumbar Plexus Peripheral Nerves in the lower limb: Lower Abdominal Wall, Groin and Thigh.Ultrasound international open · 2026Review
- Ultrasound-guided obturator nerve block technique at the distal end of the obturator canal: case series and cadaver evaluation.Journal of anesthesia · 2025Article
- Adductor Muscle Contraction Under Deep Neuromuscular Blockade During TURBT Under General Anesthesia: Is Obturator Nerve Block Still Necessary?-A Prospective, Single-Arm, Exploratory Study.Medicina (Kaunas, Lithuania) · 2025Article
- Safety & efficacy of thulium laser endoscopic en bloc resection versus conventional trans urethral resection of bladder tumors, for treatment of non muscle invasive bladder tumors: A prospective randomized trial.Arab journal of urology · 2025Article
- Efficacy of a pubic superior ramus approach versus a distal approach for obturator nerve block in transurethral bladder tumor resection: a randomized controlled trial.American journal of translational research · 2025Article
- The Utilization of Ultrasound-Guided Regional Nerve Blocks in Anesthetic Management for Fracture Surgery.Journal of pain research · 2025Review
- Efficacy and Safety of Obturator Nerve Block in Transurethral Resection of Bladder Tumors: A Comprehensive Review.Cureus · 2024Review
- Obturator Nerve Block: An Anatomical Perspective.Cureus · 2024Article
- Functional outcomes following surgery for spastic hip adductor muscles in ambulatory and non-ambulatory adults.Journal of rehabilitation medicine · 2024Observational
- Article
- The role of high-resolution ultrasound and MRI in the evaluation of peripheral nerves in the lower extremity.Journal of ultrasonography · 2023Article
- A Comparative Evaluation of Combined Nerve Block Versus Periarticular Infiltration on Postoperative Pain Relief in Total Hip Arthroplasty.Indian journal of orthopaedics · 2023Article
- Sonoanatomy of the ilioinguinal, iliohypogastric, genitofemoral, obturator, and pudendal nerves: a practical guide for US-guided injections.Journal of ultrasonography · 2022Review
- Pulsed Radiofrequency (PRF) of Pericapsular Nerves Group (PENG) in Chronic Hip Pain-A Case Report.Turkish journal of anaesthesiology and reanimation · 2021Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This review outlines the anatomy of the obturator nerve and the indications for obturator nerve block (ONB). Ultrasound-guided ONB techniques and unresolved issues regarding these procedures are also discussed. An ONB is performed to prevent thigh adductor jerk during transurethral resection of bladder tumor, provide analgesia for knee surgery, treat hip pain, and improve persistent hip adductor spasticity. Various ultrasound-guided ONB techniques can be used and can be classified according to whether the approach is distal or proximal. In the distal approach, a transducer is placed at the inguinal crease; the anterior and posterior branches of the nerve are then blocked by two injections of local anesthetic directed toward the interfascial planes where each branch lies. The proximal approach comprises a single injection of local anesthetic into the interfascial plane between the pectineus and obturator externus muscles. Several proximal approaches involving different patient and transducer positions are reported. The proximal approach may be superior for reducing the dose of local anesthetic and providing successful blockade of the obturator nerve, including the hip articular branch, when compared with the distal approach. This hypothesis and any differences between the proximal ONB techniques need to be explored in future studies.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.