# How Does a Cyclops Lesion Impact Anterior Cruciate Ligament (ACL) Reconstruction Recovery?

**Authors:** Victoria M Estevez, Paul Danahy, Jonathan Whittington, Michael Ferrell

PMC · DOI: 10.7759/cureus.80138 · Cureus · 2025-03-06

## TL;DR

A 16-year-old athlete with a flexion restriction after ACL surgery recovered fully following surgical intervention after nonoperative treatments failed.

## Contribution

This case highlights the progression and treatment of a persistent flexion restriction after ACL reconstruction.

## Key findings

- Nonoperative treatments failed to resolve the patient's flexion restriction.
- Surgical intervention led to full recovery 10 months post-initial surgery.

## Abstract

This case explores the complexities of treating a flexion restriction in a patient following anterior cruciate ligament (ACL) reconstruction, medial meniscus repair, and lateral meniscectomy. The aim is to provide insights into the treatment pathway when a flexion restriction develops post-ACL reconstruction and fails to improve with nonoperative measures. The patient, a 16-year-old high school track athlete, sustained a torn right ACL in a car accident and presented with severe knee instability, difficulty climbing stairs, and pain during ambulation. This case highlights the use of various nonoperative treatment strategies to address a flexion restriction that began developing within one month postoperatively. Despite aggressive physical therapy, the use of a knee extension machine, a brace locked in extension, and steroid treatment, the patient exhibited a persistent flexion restriction of five degrees, eventually necessitating surgical intervention. Ultimately, the patient achieved full recovery after undergoing arthroscopic lysis of adhesions and manipulation under anesthesia performed 10 months after the initial ACL reconstruction.

## Linked entities

- **Chemicals:** steroid (PubChem CID 139082353)

## Full-text entities

- **Diseases:** flexion restriction (MESH:D002313), adhesions (MESH:D000267), medial meniscus (MESH:D000070600), pain (MESH:D010146), knee instability (MESH:D007718)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11971952/full.md

## References

12 references — full list in the complete paper: https://tomesphere.com/paper/PMC11971952/full.md

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Source: https://tomesphere.com/paper/PMC11971952