# DISORDERS (REPEATED TRAUMA)
> MSHA accident `220142260032` · 08/06/2014 · Northshore Mining Company
## Details
- **Degree of injury:** OCCUPATNAL ILLNESS NOT DEG 1-6
- **Classification:** DISORDERS (REPEATED TRAUMA)
- **Accident type:** Over-exertion NEC
- **Occupation:** Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator
- **Activity:** Walking, Running
- **Injury source:** STEPS
- **Nature of injury:** JOINT,TENDON,MUSCL INFLAM
- **Body part:** KNEE/PATELLA
- **Days lost:** 26
- **Mine experience:** 17.13 years
## Operator
- **Controller:** Cleveland-Cliffs Inc
- **Operator:** Northshore Mining Company
- **Mine:** [2100831](https://api.ai-analytics.org/mine/2100831)
## Narrative

Employee states that he was descending a staircase and when he stepped off the last step he felt pain in the backside of his left knee.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*