Grip force parameters in precision grip of individuals with myelomeningocele

Abstract

The aim of this study was to characterize impairments of hand function in individuals with myelomeningocele (MMC) using a quantitative method. A grip-lift task was studied in 29 individuals with MMC (17 females, 12 males; mean age 12 years 4 months, SD 5 years 6 months; range 4 to 28 years) and 29 age- and sex-matched control participants. A small object (weight 200 g) was grasped and lifted with a precision grip of the dominant hand and grip forces (GF) and time intervals were measured. Sensibility was examined with a two-point discrimination test. In those with MMC, the latency between GF onset of the thumb and index finger and ensuing preload duration were both significantly prolonged (p<0.01). Fingertip forces were excessively high and variable. Several parameters differed significantly between those with MMC and control individuals: GF peak, GF at start of loading, mean GF, and the SDs of the GF during static holding. Although the two-point discrimination task indicated deficits of sensibility, these did not correlate with grip force parameters. Results demonstrate that fine motor skills in patients with MMC are impeded by slowness and inadequate adjustments of manipulative forces.

Independence in the toilet activity in children and adolescents with myelomeningocele – managing clean intermittent catheterization in a hospital setting

“…This incontinence is a consequence of the lesion with subsequent reduced sensory function, as well as reduced gross motor functions. In fact, despite the lesion being typically in the lumbar section of the spine, fine motor functions in the upper extremities have also been shown to be affected (8).…”

Do Grip and Pinch Strength Predict Neurologic Complications in Children with Spina Bifida and Hydrocephalus?

“…Children with MM with or without hydrocephalus have more weakness than those who just have isolated hydrocephalus [22]. These chronic problems with dexterity and strength may be related to damage of the cortical and corticospinal tracts secondary to hydrocephalus, to the Chiari II malformation causing cerebellar dysfunction, to lesions of the cervical spinal cord that are cephalad to the original lesion [31], or to changes in sensation [32]. …”