Investigating how long spinal anaesthesia lasts in orthopedic surgeries

The Duration of Spinal Anaesthesia - a Prospective Observational Cohort Study

Observational Nordsjaellands Hospital · NCT06459986

This study looks at how long spinal anesthesia lasts during hip and knee surgeries to see how different factors affect recovery and when patients can go home.

Quick facts

Study typeObservational
Enrollment2000 (estimated)
Ages18 Years to 100 Years
SexAll
SponsorNordsjaellands Hospital Academic / other
Locations2 sites (Hillerød and 1 other locations)
Trial IDNCT06459986 on ClinicalTrials.gov

What this trial studies

This observational cohort study aims to gather data on the factors influencing the duration of spinal anaesthesia used in total hip and knee arthroplasties. By examining the type and dose of local anaesthetic administered, the study seeks to determine how these variables affect the length of spinal anaesthesia. The findings will help assess the suitability of spinal anaesthesia for outpatient orthopedic surgeries, particularly in terms of patient recovery and hospital discharge timing. The study will involve patients scheduled for elective orthopedic procedures under spinal anaesthesia.

Who should consider this trial

Good fit: Ideal candidates are adults scheduled for elective orthopedic surgeries requiring spinal anaesthesia, classified as ASA physical status 1-4.

Not a fit: Patients under 18 years, those on anticoagulant therapy not managed according to guidelines, or with local infections or bleeding disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance outpatient surgical protocols by optimizing spinal anaesthesia duration, leading to improved patient recovery and reduced hospital stays.

How similar studies have performed: While there is limited data on the specific duration of spinal anaesthesia, similar studies have explored regional anaesthesia in outpatient settings, indicating potential for success in optimizing surgical protocols.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Scheduled for elective orthopaedic surgical procedures performed in spinal anaesthesia
* ASA 1-4.

Exclusion Criteria:

* Age \< 18 years
* Anticoagulant medication therapy not paused according ESAIC/ESRA 2022 guidelines
* Local infection at the lumbar puncture site
* Bleeding disorder
* Unable to cooperate with the spinal anaesthesia procedure.

Where this trial is running

Hillerød and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Orthopedic DisorderRegional anaesthesiaSpinal anaesthesia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.