# Traumatic injuries to muscles, tendons, ligaments, joints, etc., unspecified at United States Postal Services - Haleiwa
> OSHA SIR `20191212870` · 12/15/2019 · HALEIWA, HAWAII
## Severity
- **1 hospitalization**
- **Body part:** Knee(s)
- **Nature of injury:** Traumatic injuries to muscles, tendons, ligaments, joints, etc., unspecified
## Cause
- **Event:** Slip on substance without fall
- **Source:** Ground, n.e.c.
- **Secondary source:** Liquids, unspecified
## Employer
- **Name:** United States Postal Services - Haleiwa
- **Location:** 66-437 Kamehameha Hwy, Ste 102, HALEIWA, HAWAII, 96712
- **NAICS:** 491110
- **Jurisdiction:** 0
## Narrative

An employee slipped on wet grass while delivering mail. The employee suffered a twisted right knee that required surgery.

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