The Effect of Anthropometric Measurements on Block Success, Performance Time , and Ultrasound Visibility Score.

The primary objective of this study is to determine whether patients' physical characteristics hold predictive value regarding the difficulty or ease of performing an interscalene block. By pre-identifying patients prone to difficult blocks, predicting procedure duration, and elucidating the factors influencing ultrasound image quality, this study aims to contribute to clinical practice and patient safety.

NCT Number	NCT07688889
Lead Sponsor	Amasya University
Conditions	Interscalene Blocks
Enrollment	84 participants
Start Date	2026-06-16
Primary Completion	2027-03-01 (estimated)
Study Completion	2027-03-01 (estimated)
Updated on ClinicalTrials.gov	2026-07-07