# Atraumatic Bilateral Patella Fracture in Middle-Aged Female: A Rare Case Report

## TL;DR

A 45-year-old woman experienced rare nontraumatic bilateral patella fractures, successfully treated with surgery and rehabilitation.

## Contribution

Reports a rare case of nontraumatic bilateral patella fractures in a middle-aged female.

## Key findings

- Bilateral transverse patella fractures occurred without trauma in a 45-year-old female.
- Stable surgical fixation and rehabilitation led to a good functional outcome.
- Nontraumatic fractures may result from repetitive stress in predisposed bones.

## Abstract

The patella is the largest sesamoid bone in the body and an important structure of the extensor apparatus which is under undue stress during flexion and extension of the knee. Bilateral fracture of the patella without trauma is a very rare event and may be multifactorial without a single cause. A repetitive stress reaction in a previously predisposed bone can be an important cause. We report a case of a 45-year-old female with a nontraumatic bilateral transverse patella fracture with loss of extensor mechanism. A stable surgical fixation for such a displaced fracture with a good rehabilitation program can lead to a good functional outcome.