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CTRI Number  CTRI/2026/01/101037 [Registered on: 14/01/2026] Trial Registered Prospectively
Last Modified On: 13/01/2026
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   Study of knee cartilage and physical performance in patients with knee pain and flat feet 
Scientific Title of Study   Influence of flat feet on femoral cartilage thickness and physical performance in individuals with knee pain-an ultrasonographic analysis 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Durga Ramesh 
Designation  Post-graduate student  
Affiliation  Sri Ramachandra Institute of Higher Education and Research 
Address  Room No: 1.4, first floor, Sri Ramachandra Faculty of Physiotherapy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai

Chennai
TAMIL NADU
600116
India 
Phone  8122744232  
Fax    
Email  rhdurga07@gmail.com  
 
Details of Contact Person
Scientific Query  
Name  G A Geetha Hari Priya 
Designation  Assistant professor 
Affiliation  Sri Ramachandra Faculty of Physiotherapy 
Address  Room No. 1.3, first floor, Sri Ramachandra Faculty of Physiotherapy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai

Chennai
TAMIL NADU
600116
India 
Phone  7358580685  
Fax    
Email  geethaharipriya@sriramachandra.edu.in  
 
Details of Contact Person
Public Query  
Name  G A Geetha Hari Priya 
Designation  Assistant professor 
Affiliation  Sri Ramachandra Institute of Higher Education and Research 
Address  Room No. 1.3, first floor, Sri Ramachandra Faculty of Physiotherapy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai

Chennai
TAMIL NADU
600116
India 
Phone  7358580685  
Fax    
Email  geethaharipriya@sriramachandra.edu.in  
 
Source of Monetary or Material Support  
Sri Ramachandra Institute of Higher Education and Research, New Block Physiotherapy OPD, Ground floor, No 1, Sri Ramachandra Nagar, Porur,Chennai, Tamil Nady 600116 
 
Primary Sponsor  
Name  Sri Ramachandra Institute of Higher Education and Research 
Address  No. 1, Sri Ramachandra Faculty of Physiotherapy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu 600116 
Type of Sponsor  Research institution and hospital 
 
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 
Mrs G A Geetha Hari Priya  Sri Ramachandra G block Physiotherapy OPD   New G block Physiotherapy OPD, ground floor, Sri Ramachandra Hospital, Sri Ramachandra Institute of higher education and research, Porur, Chennai 600116
Chennai
TAMIL NADU 		 7358580685

geethaharipriya@sriramachandra.edu.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics Committee for Students project  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: M255||Pain in joint,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  nil  nil 
Intervention  Nil  Nil 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  40.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  patients with flat feet
patients with knee pain and patients without knee pain 
 
ExclusionCriteria 
Details  history of systemic disease
post operative conditions
pregnant women 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
ultrasonography
 		 At baseline 
 
Secondary Outcome  
Outcome  TimePoints 
30sec chair test
timed up & go test
6 minute walk test 		 At baseline 
Navicular drop test
NPRS
30-second chair test
Timed up & go test
6-minute walk test 		 At baseline 
 
Target Sample Size   Total Sample Size="52"
Sample Size from India="52" 
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   N/A 
Date of First Enrollment (India)   26/01/2026 
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="0"
Months="4"
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   This observational study aims to analyse the influence of flat feet on femoral cartilage thickness and physical performance in individuals aged 40 years and above with and without knee pain. Flat feet alter lower-limb biomechanics, leading to abnormal knee joint loading and potential cartilage degeneration. Participants with flat feet will be identified using the navicular drop test. Femoral cartilage thickness of the medial, intercondylar, and lateral femoral condyles will be measured using ultrasonography. Physical performance will be assessed using the 30-second chair stand test, Timed Up and Go test, and 6-minute walk test. A total of 53 participants will be recruited from the Physiotherapy Outpatient Department. Participants will be grouped based on the presence or absence of knee pain. The study duration will be six months. Ethical approval and informed consent will be obtained prior to participation. The findings may aid in early identification and preventive strategies for knee joint degeneration in individuals with flat feet.  
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