# Guided to Success: Optimizing Implant Positioning With Global Positioning System (GPS) Navigation in Total Shoulder Arthroplasty

**Authors:** Victor L Tran, Katie E Zhang, David J Novak, Jami Fano

PMC · DOI: 10.7759/cureus.101816 · Cureus · 2026-01-18

## TL;DR

This case study shows how GPS navigation helped accurately place shoulder implants in a young, active patient with severe arthritis.

## Contribution

Demonstrates the use of GPS navigation for precise implant positioning in total shoulder arthroplasty in a younger patient.

## Key findings

- GPS navigation enabled accurate component positioning during the surgery.
- Postoperative imaging showed correction of posterior humeral head subluxation.
- The patient had uncomplicated recovery and good short-term outcomes.

## Abstract

We present the case of a 48-year-old male with severe right glenohumeral osteoarthritis who experienced progressive pain and functional loss despite extensive conservative management. Given his high activity level and preserved rotator cuff, he underwent a global positioning system (GPS)-navigated anatomic total shoulder arthroplasty (aTSA) using the ExactechGPS system (Exactech, Inc., Gainesville, FL). The procedure was uncomplicated, and postoperative rehabilitation progressed without limitation. Postoperative imaging demonstrated accurate component positioning with correction of posterior humeral head subluxation. This case highlights the short-term clinical and radiographic outcomes following navigation-assisted aTSA in a younger, active patient.

## Linked entities

- **Diseases:** osteoarthritis (MONDO:0005178)

## Full-text entities

- **Diseases:** external rotation (MESH:D009759), glenoid labral degeneration (MESH:D000070636), cartilage loss (MESH:D002357), paralabral cyst (MESH:D003560), retroversion (MESH:D060751), subluxation (MESH:D004204), humeral head (MESH:D012784), shoulder replacement (MESH:D000070599), degenerative osteoarthritis (MESH:D010003), polyethylene wear (MESH:D057085), glenoid loosening (MESH:D011475), pain (MESH:D010146), stiffness (MESH:C566112), external (MESH:D017577), supraspinatus tendinosis (MESH:D052256), posterior (MESH:D001041), GERD (MESH:D005764), Degenerative joint disease (MESH:D019636), glenohumeral arthritis (MESH:D001168), inflammatory disease (MESH:D007249), aTSA (MESH:D020763), joint (MESH:D007592), shoulder pain (MESH:D020069), post (MESH:D000094025), avascular necrosis (MESH:D010020)
- **Chemicals:** Monocryl (MESH:C095495), Vicryl (MESH:D011098), aTSA (-), cortisone (MESH:D003348)
- **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/PMC12914226/full.md

## References

5 references — full list in the complete paper: https://tomesphere.com/paper/PMC12914226/full.md

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Source: https://tomesphere.com/paper/PMC12914226