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CTRI Number  CTRI/2025/10/096120 [Registered on: 16/10/2025] Trial Registered Prospectively
Last Modified On: 15/10/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug
Diagnostic 
Study Design  Single Arm Study 
Public Title of Study   Study to assess changes in walking, balance, and muscle stiffness before and after a nerve block procedure in patients with hip adductor spasticity 
Scientific Title of Study   Clinical, gait and balance parameters after diagnostic obturator nerve block in patients with spasticity - a pre-post interventional study 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Jaydeep Nandi  
Designation  Additional Professor 
Affiliation  AIIMS Raipur 
Address  Department of Physical Medicine & Rehabilitation, AIIMS Raipur, Tatibandh, G E Road, Raipur

Raipur
CHHATTISGARH
492099
India 
Phone  9760456198  
Fax    
Email  jaydeepnandidgp@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Jaydeep Nandi  
Designation  Additional Professor 
Affiliation  AIIMS Raipur 
Address  Department of Physical Medicine & Rehabilitation, AIIMS Raipur, Tatibandh, G E Road, Raipur

Raipur
CHHATTISGARH
492099
India 
Phone  9760456198  
Fax    
Email  jaydeepnandidgp@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Jaydeep Nandi  
Designation  Additional Professor 
Affiliation  AIIMS Raipur 
Address  Department of Physical Medicine & Rehabilitation, AIIMS Raipur, Tatibandh, G E Road, Raipur

Raipur
CHHATTISGARH
492099
India 
Phone  9760456198  
Fax    
Email  jaydeepnandidgp@gmail.com  
 
Source of Monetary or Material Support  
Dr. Jaydeep Nandi, Principal Investigator, Department of Physical Medicine & Rehabilitation, AIIMS Raipur, Tatibandh, G E Road, Raipur PIN 492099 
 
Primary Sponsor  
Name  NIL 
Address  NIL 
Type of Sponsor  Other [NIL] 
 
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 Jaydeep Nandi  AIIMS Raipur  Department of Physical Medicine & Rehabilitation, Unit 1, Room No: 3
Raipur
CHHATTISGARH 
9760456198

jaydeepnandidgp@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institute Ethics Committee, AIIMS Raipur  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: I639||Cerebral infarction, unspecified, (2) ICD-10 Condition: G809||Cerebral palsy, unspecified, (3) ICD-10 Condition: G35||Multiple sclerosis, (4) ICD-10 Condition: S141||Other and unspecified injuries ofcervical spinal cord, (5) ICD-10 Condition: S241||Other and unspecified injuries ofthoracic spinal cord, (6) ICD-10 Condition: S341||Other and unspecified injury of lumbar and sacral spinal cord, (7) ICD-10 Condition: S069||Unspecified intracranial injury,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  NIL  NIL 
Intervention  USG guided diagnostic Obturator nerve block  Patient monitor will be connected to the patient for assessment of heart rate, SpO2, respiratory rate, blood pressure and temperature throughout the procedure. SONOSITE EDGE II Ultrasound system with High Frequency 13-6 Mhz Linear Transducer (HFL 38xi) will be used in this procedure. Ultrasonography will be performed to identify the obturator nerve, located in between the pectineus, adductor longus, and short adductor brevis muscles. A 22-gauge needle will be advanced via an in-plane approach laterally to medially to position the needle tip between the adductor longus and adductor brevis muscles (to block the anterior division of obturator nerve) . After negative aspiration, 5 mL of lidocaine 1% will be injected. The needle will then be advanced and positioned between the adductor brevis and adductor magnus muscles (to block the posterior division of obturator nerve), and another volume of 5 mL of lidocaine 1% will be injected. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  1. Patients aged greater than or equal to 18 years
2. Patients affected by hip adductor spasticity (unilateral or bilateral) because of
underlying generalised or focal cerebral and spinal pathologies like cerebrovascular
accident, spinal cord injury, traumatic brain injury, cerebral palsy or multiple sclerosis.
3. Hip adductor spasticity severity 1, 1 plus, 2 or 3 on the Modified Ashworth Scale (MAS)
4. Use of any anti-spasticity medications at stable doses for at least 1 month prior to
enrolment, and the participant must agree to maintain same dose throughout the study  
 
ExclusionCriteria 
Details  1. Patients who do not wish to be included in the study
2. Patients who have an allergy to lidocaine
3. Hip adductor spasticity severity 4 on the Modified Ashworth Scale (MAS)
4. Established severe contracture of the hip adductors.
5. Received recent treatment with botulinum toxin (within 6 months), phenol injection
(within 24 months).
6. Unstable medical conditions such as peripheral vascular disease, hepatic disease,
renal disease, coronary artery disease, malignant hyperthermia and an estimated
survival of less than 6 months.
7. Patients with a history of dystonic posture or deep vein thrombosis in the lower
limbs
8. Pregnant women 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
a) Modified Ashworth Scale (MAS)
b) Spasm Frequency Scale
c) R1 of Modified Tardieu Scale (both in knee flexed and extended condition). 
Baseline, 30 minutes after procedure 
 
Secondary Outcome  
Outcome  TimePoints 
a) Gait parameters:
1. Step length, Swing time (SwT), Stance time (StT), Single-leg support time (SLST),
Double-leg support time (DLST) and Step Length Symmetry Ratio
2. Walking velocity  
Baseline, 30 minutes after procedure 
b) Balance parameters:
1. Postural stability test
2. Fall risk test
3. Limits of stability test  
Baseline, 30 minutes after procedure 
 
Target Sample Size   Total Sample Size="15"
Sample Size from India="15" 
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 3/ Phase 4 
Date of First Enrollment (India)   29/10/2025 
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="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
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 - YES
  1. What data in particular will be shared?
    Response - Individual participant data that underlie the results reported in this article, after de-identification (text, tables, figures, and appendices).

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response - Informed Consent Form

  3. Who will be able to view these files?
    Response - Researchers whose proposed use of the data has been approved by an independent review committee identified for this purpose.

  4. For what types of analyses will this data be available?
    Response - For individual participant data meta-analysis.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [jaydeepnandipmr@aiimsraipur.edu.in].

  6. For how long will this data be available start date provided 03-07-2026 and end date provided 03-07-2029?
    Response - Beginning 9 months and ending 36 months following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary   This study expects to find out the functional improvement in hip adductor spasticity and the change in gait and balance parameters after obturator nerve block. Patients above 18 years of age will be enrolled for the study as per inclusion and exclusion criteria. All the patients will receive anti spasticity medications at stable doses throughout the study duration. Modified Ashworth Scale (MAS), Spasm Frequency Scale, R1 of Modified Tardieu Scale (knee flexed and extended) , Gait parameters and Balance parameters will be assessed immediately before the procedure. Clinical data for primary evaluation will be obtained by examination for Modified Ashworth Scale (MAS) of adductor group of muscles, Spasm Frequency Scale and R1 of Modified Tardieu Scale (both in knee flexed and extended condition). Spatiotemporal gait parameters will be collected by using the inertial motion sensor G-WALK (G-SENSOR II) of BTS gait analysis system which uses G-STUDIO software. Balance data will be collected by using the platform BALANCE SD which uses Balance System SD Software Update v4.0.18. USG guided Obturator nerve block will be done on the affected side using 1% lidocaine. 30 minutes after the procedure, the outcome variables will be assessed again. 
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