Correlation between MRI and conventional radiographic findings in evaluation of osteoarthritis.

Authors

  • Aneeqa Noor PAF Hospital, Islamabad.
  • Shaista Nayyar PAF Hospital ISB/ Fazaia Medical College, Islamabad.
  • Salman Azhar Madinah Teaching Hospital, Faisalabad.
  • Marryum Mukhtar Madinah Teaching Hospital, Faisalabad.
  • Amna Khalid Fauji Foundation Hospital, Rawalpindi.
  • Huma Khaliq Family Health Hospital, Islamabad.
  • Muhammad Ahsan Nusrat Fateh Ali Khan Hospital, Faisalabad.

DOI:

https://doi.org/10.29309/TPMJ/2024.31.11.8324

Keywords:

Diagnostic Accuracy, MRI, Osteoarthritis, Obesity, Sensitivity, Specificity, X-ray

Abstract

Objective: To evaluate the diagnostic accuracy of X-rays in detecting osteoarthritis (OA) in comparison to MRI. Study Design: Cross-sectional study. Setting: The Fauji Foundation Hospital, Rawalpindi. Period: August, 2023 to March, 2024. Methods: Total 350 patients consented to clinical interviews, physical examinations, standing radiographs, and MRIs. Standing, semi-flexed posteroanterior radiographs of the knees were obtained with proper alignment to accurately detect joint space narrowing. Manual measurements of joint space width were conducted by a blinded orthopedic surgeon using the Kellgren-Lawrence grading system. Data analysis was performed using SPSS 23, with frequencies, percentages, means, and standard deviations calculated for relevant variables. Diagnostic accuracy was assessed using a 2x2 table. Results: Of the 350 patients, 61.1% were up to 60 years old, and 38.9% were over 60 years old. Among those with positive MRI results, 70.1% also had a positive X-ray, while 29.6% did not. Cohen's Kappa was 0.377, indicating fair to moderate agreement. Sensitivity was 54.3%, specificity 82.4%, positive predictive value 70.1%, and negative predictive value 70.4%, with an overall diagnostic accuracy of 70.3%. Conclusion: X-rays demonstrated high specificity and moderate predictive values, but low sensitivity, suggesting that some OA cases may be missed if relying solely on X-rays.

Author Biographies

Aneeqa Noor, PAF Hospital, Islamabad.

MBBS, FCPS Resident Radiology, 

Shaista Nayyar, PAF Hospital ISB/ Fazaia Medical College, Islamabad.

MBBS, FCPS, Associate Professor, 

Salman Azhar, Madinah Teaching Hospital, Faisalabad.

MBBS, FCPS (Medicine), Assistant Professor Medicine, 

Marryum Mukhtar, Madinah Teaching Hospital, Faisalabad.

MBBS, FCPS, Senior Registrar Radiology, 

Amna Khalid, Fauji Foundation Hospital, Rawalpindi.

MBBS, FCPS, Assistant Professor Radiology, 

Huma Khaliq, Family Health Hospital, Islamabad.

FCPS, Consultant Radiologist, 

Muhammad Ahsan, Nusrat Fateh Ali Khan Hospital, Faisalabad.

MBBS, PGPN, Emergency Medical Officer, 

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Published

2024-11-03