TY - JOUR
PY - 2015//
TI - Long-term motor recovery after severe traumatic brain injury: beyond established limits
JO - Journal of head trauma rehabilitation
A1 - DʼArcy, Ryan C. N.
A1 - Lindsay, D. Stephen
A1 - Song, Xiaowei
A1 - Gawryluk, Jodie R.
A1 - Greene, Debbie
A1 - Mayo, Chantel
A1 - Ghosh Hajra, Sujoy
A1 - Mandziuk, Lila
A1 - Mathieson, John
A1 - Greene, Trevor
SP - E50
EP - 8
VL - 31
IS - 5
N2 - OBJECTIVE: To report neural plasticity changes after severe traumatic brain injury. SETTING: Case-control study. PARTICIPANTS: Canadian soldier, Captain Trevor Greene survived a severe open-traumatic brain injury during a 2006 combat tour in Afghanistan.
DESIGN: Longitudinal follow-up for more than 6 years. MAIN MEASURES: Twelve longitudinal functional magnetic imaging (fMRI) examinations were conducted to investigate lower limb activation changes in association with clinical examination. Trevor Greene's lower limb fMRI activation was compared with control fMRI activation of (1) mental imagery of similar movement and (2) matched control subject data.
RESULTS: Trevor Greene's motor recovery and corresponding fMRI activation increased significantly over time (F = 32.54, P <.001). Clinical measures of functional recovery correlated strongly with fMRI motor activation changes (r = 0.81, P =.001). By comparison, while Trevor Greene's mental imagery activated similar motor regions, there was no evidence of fMRI activation change over time. While comparable, control motor activation did not change over time and there was no significant mental imagery activation.
CONCLUSION: Motor function recovery can occur beyond 6 years after severe traumatic brain injury, both in neural plasticity and clinical outcome. This demonstrates that continued benefits in physical function due to rehabilitative efforts can be achieved for many years following injury. The finding challenges current practices and assumptions in rehabilitation following traumatic brain injury.
Language: en
LA - en SN - 0885-9701 UR - http://dx.doi.org/10.1097/HTR.0000000000000185 ID - ref1 ER -