The persistence of post-traumatic stress symptoms following an injury is pernicious.
Haagsma and colleagues (2010) followed up with a general population of patients 2 years after treatment for an injury.
Post-traumatic stress symptoms among these patients were negatively associated with almost all the functional and health-related quality of life measures in the study (e.g., problems with mobility, emotion, cognition, as well as considerably higher levels of pain, discomfort, anxiety & depression).
One take away from this study is the emphasis surrounding the treatment of physical AND psychological symptoms following an injury. If the psychological aspects of traumatic injuries are not rehabilitated in tandum with the physical aspects of injuries, there could be serious long-term consequences towards functioning and quality of life.
This is said in light of the study design limitations. Most importantly, the study does not allow one to be conclusive about the direction of the relationship between PTSD symptoms with functional and health-related quality of life (i.e., do PTSD symptoms lead to worse functioning/quality of life, the opposite, or is something else leading to both?). However, it does allow one to infer that individuals who continue to exhibit PTSD symptoms 2-years after an injury are far more likely to suffer from an overall lower quality of life.
Haagsma, J. A., Polinder, S., Olff, M., Toet, H., Bonsel, G. J., & van Beeck, E. F. (2012). Posttraumatic stress symptoms and health-related quality of life: A two year follow up study of injury treated at the emergency department. BMC Psychiatry, 12(1), 1-8.