MedTrace Logo

Predictors of Unilateral Spinal Block Success

NCT07581561 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 318

Last updated 2026-05-12

No results posted yet for this study

Summary

This prospective observational study aims to determine the factors affecting the success of unilateral spinal anesthesia in patients undergoing orthopedic lower extremity surgery. Unilateral spinal anesthesia is preferred to minimize unwanted effects such as hypotension and to provide more stable hemodynamic conditions, especially in vulnerable patient populations.

Unilateral spinal anesthesia is defined as achieving sensory and motor block predominantly on the operated side without significant contralateral spread. However, the factors influencing the success of this technique have not been fully clarified.

This study will evaluate various patient-related and procedure-related factors, including age, sex, body mass index, patient positioning, needle type and orientation, injection technique and local anesthetic dose. The primary outcome is the success of unilateral spinal anesthesia, defined as the absence of contralateral block.

The results of this study are expected to contribute to improving clinical practice by identifying major and minor factors affecting block success and optimizing anesthesia techniques.

Conditions

  • Spinal Aneshtesia
  • Unilateral Spinal Anesthesia
  • Regional Anaesthesia

Sponsors & Collaborators

  • Izmir City Hospital

    lead OTHER_GOV

Principal Investigators

  • Derya Arslan Yurtlu, MD · Izmir City Hospital

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-08-10
Primary Completion
2026-02-01
Completion
2026-02-01

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07581561 on ClinicalTrials.gov