# Multiple soft tissue injuries at U.S. Postal Service
> OSHA SIR `20241211827` · 12/23/2024 · DETROIT, MICHIGAN
## Severity
- **1 hospitalization**
- **Body part:** Knee(s)
- **Nature of injury:** Multiple soft tissue injuries
## Cause
- **Event:** Fall, slip, trip  unspecified
- **Source:** Stairs, steps
- **Secondary source:** Ice, sleet, snow, hail
## Employer
- **Name:** U.S. Postal Service
- **Location:** 16500 Joy Road, DETROIT, MICHIGAN, 48228
- **NAICS:** 491110
- **Jurisdiction:** 0
## Narrative

On December 23, 2024, an employee slipped on black ice on steps while delivering mail to a residence and fell. The employee sustained a dislocated and torn left knee.

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