# SLIP OR FALL OF PERSON
> MSHA accident `220110070042` · 10/11/2010 · Keystone Cement Company 
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **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:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 29.31 years
## Operator
- **Controller:** Cementos Portland Valderrivas S A
- **Operator:** Keystone Cement Company 
- **Mine:** [3600125](https://api.ai-analytics.org/mine/3600125)
## Narrative

Employee was walking down steps on west side of cooler, he tripped on step and felt pain in his right knee, diagnosed with knee strain. Employee was able to fully perform job functions and returned to full duty. Pain continued in knee, sent for MRI. Employee was sent for surgery December 30, 2010, arthritis aggravated by trip on the step.

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