Interrater Reliability of the Pediatric Neuromuscular Recovery Scale in Children with Spina Bifida

Case report: training neck and head control in children with chronic paralysis due to acute flaccid myelitis

Background

Acute flaccid myelitis (AFM) occurs rarely in children and adolescents when damage to spinal motor neurons rapidly causes flaccid paralysis of limb, trunk, and neck muscles and potentially respiratory failure. When neck muscles are weakened or paralyzed, a child loses head control, severely compromising engagement with their environment. Compensation for lack of head control is achieved with external support devices attached to a wheelchair, but there is no indication in the AFM literature of therapeutic efforts to restore head control. In this case series, we explore the possibility of the recovery of head control when children with AFM received activity-based restorative therapies (ABRTs) guided by principles targeting motor control.

Case description

Three children, two male and one female, aged 6, 9, and 7, with a history of AFM-onset at 5, 7, and 4 years respectively, enrolled in an activity-based restorative therapies outpatient program targeting activation of the neuromuscular system below the lesion. Each of them lacked head control, was either ventilator-dependent or had a tracheostomy, and was a power wheelchair user via hand/foot control.

Methods

Activity-based restorative therapies were provided 5 days/week: 1.5 h of activity-based locomotor training and 1.5 h of activity-based neuromuscular electrical stimulation.

Results

An approach to addressing head/neck control developed iteratively across disciplines, from complete compensation with passive external head support to emerging head control during diverse tasks, e.g., sitting, reaching, driving a power chair, sit-to-stand, standing, stepping on a treadmill, and walking. Key principles identified and employed were (a) passive facilitation, (b) external head support, (c) posterior head support, (d) graded manual facilitation, and (e) independent head control.

Discussion

The recovery of head control in children with paralysis due to AFM may be accelerated when executing a step-wise progression to effectively target and challenge head control in parallel with activity-based restorative therapies. In treating three children with a chronic lack of head control, a therapeutic strategy was iteratively developed guided by scientific principles, e.g., segmental assessment of control, to promote recovery of head control. While this strategy is encouraging, gaps in sensitive and responsive measurement instruments and treatment technologies persist in guiding assistance, challenging, and promoting independent head control.

Inter- and Intra-rater Reliability of the Head Control Scale: Brief Report

PURPOSE

To examine inter-rater and intra-rater reliability of the Head Control Scale (HCS).

METHODS

Introduction of the HCS to eight physical therapists in a pediatric post-acute hospital was followed by use in a repeated-measures design across two trials to establish reliability of the raters. Therapists scored the HCS twice within 4 weeks, using videos of infants at both 2 and 6 months of age, one infant described as typically developing and one with atypical development.

RESULTS

For the HCS overall score, reliability was excellent with an inter-rater reliability intraclass correlation coefficient ((ICC) (3,1) = 0.97 (95% confidence interval, 0.899-0.998) and intra-rater reliability ICC (3,1) range = 0.815-1.0. HCS position scores between and within raters ranged from slight to substantial agreement.

CONCLUSION

In this small study of inter- and intra-rater reliability, HCS overall score demonstrated excellent reliability for all raters however, HCS position scores demonstrated some variability, especially for the prone position.

Relationship between Movement Quality, Functional Ambulation Status, and Spatiotemporal Gait Parameters in Children with Myelomeningocele

AIMS

We investigated relationships among the Pediatric Neuromuscular Recovery Scale (Peds NRS), modified Hoffer Scale, and spatiotemporal gait parameters in children with myelomeningocele (MMC).

METHODS

21 children with MMC, age 5.3 years (SD = 2.6), were assessed by three clinicians using the Peds NRS and modified Hoffer Scale. In eight children, gait parameters were also measured.

RESULTS

The Peds NRS summary score demonstrated good correlation with modified Hoffer Scale score (r = -0.64, p = 0.002) that accounted for 41% of variation in summary score. Six Peds NRS seated/standing items exhibited good relationships with modified Hoffer Scale (r = -0.51 to -0.70, p ≤ 0.023), and the sit-to-stand item demonstrated an excellent relationship (r = -0.85, p < 0.001). Sit-to-stand and three standing/walking items exhibited excellent associations with cadence (R_s = 0.81 to 0.88, p ≤ 0.014), and swing and stance time (both R_s = -0.83 to -0.90, p ≤ 0.01). Two Peds NRS standing items and modified Hoffer Scale score demonstrated good correlations with velocity (R_s = 0.71, p = 0.047; R_s = -0.73, p = 0.04, respectively).

CONCLUSIONS

Our findings suggest that children with MMC who exhibit greater movement quality and trunk control are likely to be functional ambulators with more optimal spatiotemporal gait parameters.