Introduction: A meniscal root tear diminishes the meniscus’s ability to convert axial strain into radially directed ring strain. This leads to a diminished interaction region and increased joint stresses, resulting in initial arthritis in the joint and a heightened probability of necessitating complete knee replacement. Meniscal root restoration reinstates appropriate knee kinematics; however, non-anatomical repair elevates stress on the repair, leading to premature failure and abnormal joint kinetics. Study Analysis: A 45-year-old female, having a BMI of 40.6, hypothyroidism, and type two diabetes, presented to the OPD with symptoms of left knee pain and difficulty in ambulation. She received an arthroscopic repair of the rear root of the medial meniscus a year ago. Clinical and radiographic evaluations enabled the diagnosis of a re-tear of the medial meniscus base associated with a non-anatomic tibial tunnelling. The woman subsequently underwent arthroscopic redo of the root surgery. The patient is now at 1-year monitoring and has resumed her daily routine. Conclusion: The anatomical repair of medial meniscus posterior horn is essential for reinstating proper joint kinetics and allowing the meniscus to tolerate hoop load. Non-anatomic healing leads to premature failure and increased cartilage degeneration, resulting in early osteoarthritis and requiring eventual knee replacement. Each revision surgery presents a unique set of challenges. Essential protocols must be adhered to while rectifying any deficiencies of the first procedure.

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Addressing a Medial Meniscus Posterior Failed Root Repair

  • Rinju Krishnan,
  • Sunil Lakshmipura Krishnamurthy,
  • Rahul Shah,
  • Abhey Wasdev,
  • Likhith Theodore,
  • Rajkumar S. Amaravati,
  • A. Hemanth Kumar

摘要

Introduction: A meniscal root tear diminishes the meniscus’s ability to convert axial strain into radially directed ring strain. This leads to a diminished interaction region and increased joint stresses, resulting in initial arthritis in the joint and a heightened probability of necessitating complete knee replacement. Meniscal root restoration reinstates appropriate knee kinematics; however, non-anatomical repair elevates stress on the repair, leading to premature failure and abnormal joint kinetics. Study Analysis: A 45-year-old female, having a BMI of 40.6, hypothyroidism, and type two diabetes, presented to the OPD with symptoms of left knee pain and difficulty in ambulation. She received an arthroscopic repair of the rear root of the medial meniscus a year ago. Clinical and radiographic evaluations enabled the diagnosis of a re-tear of the medial meniscus base associated with a non-anatomic tibial tunnelling. The woman subsequently underwent arthroscopic redo of the root surgery. The patient is now at 1-year monitoring and has resumed her daily routine. Conclusion: The anatomical repair of medial meniscus posterior horn is essential for reinstating proper joint kinetics and allowing the meniscus to tolerate hoop load. Non-anatomic healing leads to premature failure and increased cartilage degeneration, resulting in early osteoarthritis and requiring eventual knee replacement. Each revision surgery presents a unique set of challenges. Essential protocols must be adhered to while rectifying any deficiencies of the first procedure.