Risk Risk of Bone Fracture due to Spaceflight-induced Changes to Bone
Short Title: Bone Fracture Last Published:  07/30/21 01:05:31 PM (Central)
Element: Exploration Medical Capability (ExMC)
Evidence:  Report
Risk Master Logic Diagram:  Not Available
Point of Contact:  Kris Lehnhardt
HRP Risk Status: Active [current research ongoing]
Risk Ratings and Dispositions per Design Reference Mission (DRM) Category
DRM CategoriesMission Type and
Duration
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth OrbitShort
(<30 days)
1x2Accepted1x1Accepted
Long
(30 days-1 year)
1x2Accepted2x2Requires Characterization
Lunar OrbitalShort
(<30 days)
1x2Accepted1x1Accepted
Long
(30 days-1 year)
2x2Requires Characterization4x2Requires Characterization
Lunar Orbital
+ Surface
Short
(<30 days)
2x3Accepted1x1Accepted
Long
(30 days-1 year)
3x3Requires Characterization4x2Requires Characterization
MarsPreparatory
(<1 year)
2x2Requires Characterization4x2Requires Characterization
Mars Planetary
(730-1224 days)
4x4Requires Characterization5x2Requires Characterization
Note: LxC is the likelihood and consequence rating. The information above was last approved by the Human System Risk Board in 7/2021.
Risk Statement
Given the skeletal changes that occur during space missions, there is a possibility that the bones of crewmembers during and after spaceflight are not as strong as they were before the mission and a fracture may occur for activities otherwise unlikely to induce fracture prior to space missions.
Gaps (10)