# Reconstruction of a Neglected Patellar Tendon Rupture in an Adolescent: A Case Report

## TL;DR

A 12-year-old child with a misdiagnosed patellar tendon rupture was successfully treated with a surgical technique that restored full knee function.

## Contribution

A novel surgical technique for chronic patellar tendon ruptures in adolescents with open physis is described.

## Key findings

- The patient achieved full range of motion and functional knee recovery after surgery.
- The technique preserved distal insertions and allowed for pain-free gait.
- The method is effective for chronic patellar tendon ruptures without avulsion fractures.

## Abstract

We present a case of a neglected patellar tendon rupture, misdiagnosed as an anterior cruciate ligament tear, in a 12-year-old child with open physis without an avulsion fracture. The patient was treated with an ipsilateral hamstring tendon autograft with preserved distal insertions, a transpatellar tunnel, and a transtibial fixation. At the final follow-up, the patient had a full range of motion and a fully functional knee. The described technique results in complete muscle strength, full range of motion, and pain-free gait. It can be used in chronic patellar tendon ruptures and is a valuable addition to the therapeutic quiver for this type of injury.