# Hamstring Anterior Cruciate Ligament Autograft Contributes to a Delayed Symptomatic Cyclops Lesion: A Case Report

## TL;DR

A case report shows a rare delayed cyclops lesion after hamstring ACL surgery, highlighting the need for awareness and a successful treatment approach.

## Contribution

This case report demonstrates a delayed cyclops lesion following hamstring ACLR, which is not commonly documented in the literature.

## Key findings

- A 21-year-old male presented with a symptomatic cyclops lesion three years after hamstring ACLR.
- Surgical debridement and notchplasty successfully managed the lesion with meniscal horn repairs.
- The case highlights the possibility of delayed cyclops lesions and their clinical presentation.

## Abstract

Cyclops lesions are characterized as fibroid nodules with granulation tissue that looks similar to a cyclops eye during arthroscopy. These are rare postoperative complications following anterior cruciate ligament reconstruction (ACLR), presenting typically within six months of their reconstruction. This case report presents a 21-year-old male, three years following hamstring autograft ACLR, with a symptomatic cyclops lesion. Contrary to the reported literature, this delayed presentation showed a painful flexion contracture of the knee and intraoperative findings consistent with a cyclops lesion. The treatment consisted of surgical debridement and notchplasty with subsequent posterior medial and lateral meniscal horn repairs. This case report presents a lesson to indicate that cyclops lesions can occur in a delayed setting following ACLR and to show a technique for successful surgical management of the lesion.