Pressure changes under the ischial tuberosities of seated individuals during sacral nerve root stimulation.
Neuromuscular stimulation via the sacral nerve roots is proposed for prevention of ischial pressure ulcers following a spinal cord injury (SCI). Acute effects of sacral functional magnetic stimulation (FMS) on seat interface pressure changes were investigated in five nondisabled volunteers. Similar effects were demonstrated with functional electrical stimulation in people with SCI who used a sacral anterior root stimulator implant. The results indicated that sacral nerve root stimulation, either by FMS or implanted electrical stimulation, induced gluteus maximus contraction and mild pelvic tilt sufficient for clinically significant reductions in ischial pressures during sitting.
Liu
Liang Qin
LQ
Spinal Research Centre, Royal National Orthopaedic Hospital (RNOH), Stanmore, United Kingdom.
Nicholson
Graham P
GP
Knight
Sarah L
SL
Chelvarajah
Ramesh
R
Gall
Angela
A
Middleton
Fred R I
FR
Ferguson-Pell
Martin W
MW
Craggs
Michael D
MD
D000328:Adult; D015331:Cohort Studies; D004599:Electric Stimulation Therapy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007512:Ischium / Q000503:physiopathology; D008160:Lumbosacral Plexus / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011312:Pressure; D003668:Pressure Ulcer / Q000209:etiology / Q000517:prevention & control*; D011336:Probability; D018570:Risk Assessment; D013119:Spinal Cord Injuries / Q000150:complications / Q000534:rehabilitation*; D013126:Spinal Nerve Roots / Q000503:physiopathology; D016896:Treatment Outcome