# Partial Shoulder Arthroplasty Guided by Three-dimensional Prototyping

## TL;DR

3D printing helps tailor surgical treatment for a rare shoulder condition in a young adult patient.

## Contribution

This paper presents a novel application of 3D printing in partial shoulder arthroplasty for a rare case of childhood-onset avascular necrosis.

## Key findings

- 3D printing was used to optimize surgical planning for a patient with osteonecrosis of the humeral head.
- The case demonstrates how 3D technology can improve precision in orthopedic surgery.
- The approach allowed for tailored treatment based on the patient's unique anatomy.

## Abstract

Three-dimensional (3D) printing technology is a reality in medicine. In Orthopedics and Traumatology, 3D printing guides a precise and tailored surgical treatment. Understanding and disseminating its applicability, use, and outcomes can foster academicism and improve patient care. This is a report of a rare case of a female young adult patient with osteonecrosis of the humeral head due to avascular necrosis developed in early childhood. The treatment was tailored and optimized with 3D printing, which helped determine the steps for partial humeral arthroplasty.

A tecnologia de impressão tridimensional (3D) é uma realidade no âmbito da medicina. Na Ortopedia e Traumatologia, a impressão 3D direciona um tratamento cirúrgico preciso e individualizado. Compreender e difundir suas aplicações, utilidades e resultados pode fomentar o academicismo e melhorar o cuidado ao paciente. Trata-se de relato de um caso raro de uma paciente adulta jovem com osteonecrose da cabeça umeral por necrose avascular desenvolvida na primeira infância. O tratamento foi individualizado e otimizado com a impressão 3D, que ajudou a determinar os passos para o procedimento de artroplastia parcial de úmero.