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Study to estimate how deep a spinal injection needle needs to go based on patient body measurements and preoperative assessment in patients undergoing lower limb surgeries.

An observational study to predict needle depth from skin to subarachnoid space on the basis of preoperative assesment and demographic variables at SMS medical college, Jaipur - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/04/107766
Enrollment
100
Registered
2026-04-07
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-27

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

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil Intervention3: Nil: Nil

Sponsors

Sawai Man Singh Medical College and Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Patients undergoing lower limb surgery under spinal anaesthesia 2.Patients willing to give written informed consent. 3.Either sex. 4.Age 20-50 years. 5.Patients with ASA grade I and II.

Exclusion criteria

Exclusion criteria: 1.Patient allergic to drugs used for spinal anaesthesia. 2.Patients with bleeding or coagulation disorders. 3.Patients with spine deformities or local skin 4.infection overlying the lumbar vertebral region. 5.Psychiatric patients. 6.Uncooperative patients. 7.Pregnant patients.

Design outcomes

Primary

MeasureTime frame
Measured depth from skin to subarachnoid space (SSD) during spinal anaesthesia and its correlation with preoperative anthropometric variables (age, gender, height, weight, BMI).Timepoint: At the time of needle insertion—

Secondary

MeasureTime frame
1. Comparison of predicted SSD with observed SSD 2. Mean difference between predicted & observed SSD 3. Identification of most accurate predictive formula 4. Association of individual demographic variables (BMI, weight, height, age, gender) with SSDTimepoint: At the time of needle insertion—

Countries

India

Contacts

Public ContactDr Divya

SMS Medical College and Hospital

divyachoudhary.dc559@gmail.com9265028510

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: May 1, 2026