Projects

Two-stage management of a large tibial tunnel cyst and secondary meniscal root tear after anterior cruciate ligament reconstruction

Groups and Associations Atul John , Akhil John, Pothuri Rishi Ram, Joe Joseph Cherian
BMJ Case Report 2025

This report describes the case of a woman in her 40s  who developed debilitating knee pain and instability 1 year after undergoing an anterior cruciate ligament
reconstruction. MRI revealed a complex pathology, including marked widening of both the femoral and
tibial bone tunnels, significant perigraft cyst formation,
a complete posterior root tear of the medial meniscus
with extrusion and a partial tear of the lateral meniscal
root. This indicated a functional failure of the primary 
reconstruction, leading to secondary intra-articular
damage. A staged surgical approach was planned with
an open excision of the proximal tibial tunnel cyst with
meticulous curettage of the tunnel walls, combined
with an arthroscopic all-inside
repair of the medial
meniscus. Substantial bone loss was addressed with
autologous iliac crest bone graft. The patient experienced
an uneventful recovery with significant symptomatic
improvement, evidence-based
approach to managing
complex postoperative anterior cruciate ligament
reconstruction complications.

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