Background: Arthroscopy of the knee is preferably done under spinal anaesthesia. The optimal analgesia for effective postoperative pain control is important to permit early discharge, comfort and mobility of the patient. Objective of the study is to assess the efficacy of ketorolac and lignocaine administered intra-articularly for postoperative pain following knee arthroscopic surgery. Methods: A total of 133 patients were randomized into two groups with one group receiving intra-articular Ketorolac and the other group receiving intra-articular Lignocaine. Postoperative pain was then assessed using the Visual Analog Scale (VAS) at 4, 8, 12 and 24 hours after surgery. Result: Both the groups had effective analgesia at 4 hours. The best analgesia was seen in the group that received Ketorolac Intra-articularly and it was found statistically significant. Conclusion: Administration of intra-articular Ketorolac injection is safe and effective way of achieving postoperative pain relief after arthroscopic knee surgery.

Objective: To evaluate the correlation between Magnetic Resonance Imaging (MRI) findings and Arthroscopy in diagnosing anterior cruciate ligament (ACL) injuries, using Arthroscopy as the gold standard. Methodology: This prospective cross-sectional study was conducted at the Department of Orthopedic Surgery, Combined Military Hospital, Rawalpindi, from February to August 2019. Clinical evidence of ACL injury was present in 127 individuals. They had an MRI as well as an arthroscopy. The diagnostic efficacy of MRI for ACL tears was evaluated, and its sensitivity, specificity, PPV, NPV, and accuracy were all calculated. Comparisons between arthroscopic and magnetic resonance imaging (MRI) findings yielded three classifications: True Positive (MRI verified by Arthroscopy), True Negative (both MRI and Arthroscopy negative for ACL injury), and False Positive/False Negative (differences between MRI and Arthroscopy). The arthroscopic inspection and MRI findings were entered into SPSS 23 software for tabulation and analysis. When necessary, both descriptive and inferential statistics were used. Results: The study of statistics Arthroscopy was performed on 127 patients, either for diagnostic or therapeutic purposes. A correlation was found when all the data was analyzed and tabulated. The majority of the patients were males (85.8%) in the second and third decades of life. The sensitivity, specificity, NPV, PPV, and accuracy of MRI in diagnosing ACL injuries were 89.89%, 64.28%, 64.28%, 89.89%, and 84.25%, respectively. Conclusion: MRI is an accurate and non-invasive modality for assessing ACL tears, showing good accuracy and high sensitivity. However, Arthroscopy remains the gold standard for diagnosing ACL injuries.