# Sprains at United Rentals Trench Safety
> OSHA SIR `2021086699` · 8/9/2021 · SHREWSBURY, MASSACHUSETTS
## Severity
- **1 hospitalization**
- **Body part:** Back, including spine, spinal cord, unspecified
- **Nature of injury:** Sprains
## Cause
- **Event:** Multiple types of overexertion involving outside sources
- **Source:** Sledges, sledgehammers
## Employer
- **Name:** United Rentals Trench Safety
- **Location:** 169 MEMORIAL DR STE B, SHREWSBURY, MASSACHUSETTS, 01545
- **NAICS:** 532490
- **Jurisdiction:** 1
## Narrative

An employee was using a sledge hammer when his back began to spasm. Unable to walk, he was hospitalized, suffering from a back sprain.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*