# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220112990026` · 08/31/2011 · Trapper Mining Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Walking, Running
- **Injury source:** LOOSE DIRT AND MUD
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 40
- **Mine experience:** 5.6 years
## Operator
- **Controller:** Salt River Project; MidAmerican Energy Holdings Company; Tri-State Gener
- **Operator:** Trapper Mining Inc
- **Mine:** [0502838](https://api.morvs.ai/mine/0502838)
## Narrative

Employee reported continuing knee pain after his foot slipped on a clump of dirt while walking on blast pattern.  He was referred to a specialist who diagnosed him with an extensively torn and degenerated meniscus and mild to moderate chondromalacia.  Surgery was performed on 10/11/11.

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