# Bilateral posterior shoulder dislocations with reverse Hill-Sachs lesions: a report of two cases and a literature review

## TL;DR

This paper presents two rare cases of bilateral posterior shoulder dislocations with reverse Hill-Sachs lesions and discusses their treatment and diagnostic challenges.

## Contribution

The paper adds to the limited literature on bilateral posterior shoulder dislocations with reverse Hill-Sachs lesions and suggests bone cement as a treatment alternative.

## Key findings

- Bilateral posterior shoulder dislocations with reverse Hill-Sachs lesions are rare and often misdiagnosed.
- Bone cement reconstruction can be a viable option for severe proximal humeral fractures when other treatments are not feasible.
- Early diagnosis and tailored treatment are crucial for achieving good functional outcomes.

## Abstract

Posterior shoulder dislocation accompanied by reverse Hill-Sachs lesions is relatively rare, whereas bilateral posterior shoulder dislocation is exceedingly rare.

We report two cases of bilateral posterior shoulder dislocations associated with reverse Hill-Sachs lesions. In Case 1, the lesions were managed using the McLaughlin procedure and the modified McLaughlin procedure. In Case 2, open reduction and internal fixation of the left shoulder was unsuccessful; consequently, reconstruction of the right humeral head was performed using bone cement.

Bilateral posterior shoulder dislocations with reverse Hill-Sachs lesions are uncommon and are therefore prone to misdiagnosis. Early recognition and appropriately selected treatment strategies, tailored to the severity of the injury, are essential to achieve satisfactory functional outcomes. For severely comminuted proximal humeral fractures, when internal fixation is not feasible and no joint replacement prostheses are unavailable, bone cement reconstruction may serve as a reasonable alternative.