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CTRI Number  CTRI/2025/07/090223 [Registered on: 04/07/2025] Trial Registered Prospectively
Last Modified On: 01/07/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A Comparison of Two Methods for Numbing the Sciatic Nerve Behind the Knee (Popliteal Block) in Below-Knee Surgeries, One Using an Ultrasound to Guide the Injection from the Side and the Other from Lying on the Back, Along with a Thigh Nerve Block – A Study of How Each Method Works 
Scientific Title of Study   Ultrasound Guided Crosswise Approach of Popliteal Sciatic Block versus Supine Lateral Approach of Popliteal Sciatic Block for Below Knee Surgeries in Combination with Adductor Canal Block A Randomized Controlled Trial. 
Trial Acronym  nil 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr BOYAPATI GOWTHAM KRISHNA 
Designation  1ST YR PG 
Affiliation  Aarupadai veedu medical college and hospital 
Address  DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
Pondicherry
PONDICHERRY
607402
India 
Phone  9182353607  
Fax    
Email  gkboyapati1@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr V Haribabu 
Designation  PROFESSOR 
Affiliation  AVMCH 
Address  DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
Pondicherry
PONDICHERRY
607402
India 
Phone  9442369647  
Fax    
Email  haribabu.veeraraghavan@avmc.edu.in  
 
Details of Contact Person
Public Query
 
Name  Dr VIJAYA KUMAR 
Designation  ASSISTAN PROFESSOR 
Affiliation  AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL 
Address  DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
DEPARTMENT OF ANESTHESIA 1ST FLOOR, A BLOCK, AARUPADI VEEDU MEDICAL COLLEGE AND HOSPITAL, KIRUMABAKKAM, PONDICHERRY
Pondicherry
PONDICHERRY
607402
India 
Phone  8220202454  
Fax    
Email  vksekar28@gmail.com  
 
Source of Monetary or Material Support  
Department of Anaesthesiology, first floor A block. Aarupadai Veedu Medical College and Hospital. Kirumampakkam. Pondicherry 607402. India 
 
Primary Sponsor  
Name  AARUPADAI VEEDU MEDICAL COLLEGE HOSPITAL 
Address  Department of Anaesthesiology, first floor A block. Aarupadai Veedu Medical College and Hospital. Kirumampakkam. Pondicherry 607402. India 
Type of Sponsor  Private medical college 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr BOYAPATI GOWTHAM KRISHNA  AARUPADAI VEEDU MEDICAL COLLEGE AND HOSPITAL  Department of anaesthesiology first floor aarupadai veedu medical cololege and hospital kirumambakkam Pondicherry PONDICHERRY
Pondicherry
PONDICHERRY 
9182353607

gkboyapati1@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional human ethical committee aarupadai veedu medical college and hospital  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: S81||Open wound of knee and lower leg,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Crosswise approach of popliteal sciatic block   Ultrasound guided Crosswise approach of popliteal sciatic block with Injection 0.5% Inj. Levobupivacaine 15ml with adductor canal block 0.25% Inj. Levobupivacaine 10ml. 
Intervention  Imaging time Needling time Time of onset of sensory block Time of onset of motor block Block failure   Block performance time is from contact of ultrasound probe to skin to the end of Levobupivacaine injection deposition. Imaging time is interval between contact of the ultrasound probe with the patient and acquisition of a satisfactory image Needling time is interval between skin infiltration and the end of local anaesthetic injection through the spinal needle  
Comparator Agent  Lateral Approach of Popliteal Sciatic nerve block  Ultrasound guided supine Lateral Approach of Popliteal Sciatic nerve block with 0.5% Inj. Levobupivacaine 15ml with adductor canal block 0.25% Inj. Levobupivacaine 10ml 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Patients of age group 18-60 years posted for elective Below Knee surgeries.
Patients with ASA 1,2,3.
 
 
ExclusionCriteria 
Details  Patient refusal
allergy to the study drug
hemodynamic instability
local infection at the site of injection 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
To compare block performance time of ultrasound guided crosswise popliteal sciatic nerve block and supine lateral popliteal sciatic nerve block   24 hours 
 
Secondary Outcome  
Outcome  TimePoints 
To determine imaging time
To determine needling Time
To assess the time of onset of sensory block
To assess the time of onset of motor block
 
24 hours 
 
Target Sample Size   Total Sample Size="82"
Sample Size from India="82" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   01/08/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  

Popliteal sciatic nerve block  in supine position has been great regarding comfort to the patient. There are many approaches used in supine position like supine medial, supine lateral approach but none of them have been proved to be superior to one another. Supine lateral approach of popliteal sciatic block is commonly performed in clinical practice and it is associated with  its own merits and demerits. A new alternative approach to popliteal sciatic nerve block is developed recently known as Crosswise approach of popliteal sciatic block (1). In this study we are going to compare the block dynamics of  Crosswise approach of popliteal sciatic nerve block and supine lateral approach of popliteal sciatic nerve block approaches.

 
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