# Reliability of a Constant Sentinel Vein to Aid in Hamstring Graft Harvesting for Anterior Cruciate Ligament Reconstruction

## TL;DR

This paper introduces a reliable vein as a landmark to improve hamstring tendon harvesting during ACL surgery.

## Contribution

A new anatomical landmark, the constant sentinel vein, is proposed to enhance hamstring graft harvesting accuracy.

## Key findings

- The constant sentinel vein is consistently located 1-2 mm below the epidermis.
- Using this vein as a landmark can reduce tissue trauma and surgical risks.

## Abstract

The presence of a constant sentinel vein (CSV) as an anatomical landmark improves the accuracy and efficiency of hamstring tendon harvesting during anterior cruciate ligament (ACL) reconstruction. We present a technique for using a branch of the inferior medial geniculate vein as an anatomical landmark. The CSV, which is consistently located 1-2 mm below the epidermis, serves as a reliable guide to localize the semitendinosus and gracilis tendons. Through the identification of reliable anatomical landmarks, surgeons may enhance their ability to accurately localize and harvest the hamstring tendons, potentially minimizing tissue trauma, reducing incision size, procedure time, risk of neurovascular injuries, and improving overall surgical outcomes.