Orthopedic surgery in children with intrathecal baclofen pumps.

AIMS: Children with cerebral palsy often have severe spasticity leading to deformity that requires multiple orthopedic surgeries. Intrathecal baclofen pump implantation effectively decreases severe spasticity. The objective of this study was to determine whether children who have a baclofen pump implanted at a young age have fewer orthopedic surgeries than those who have a baclofen pump implanted at later ages. METHODS: In this retrospective study of 310 children, we compared occurrence of surgery in relation to having or not having the baclofen pump, by using survival analysis with surgery as the outcome, presence of baclofen pump as the exposure of interest, modeled as a time-dependent variable, and age as the time scale. RESULTS: There was no significant effect of pump placement on overall surgery frequency. Analyses by type of surgery showed that those without a pump in place had a 64% lower hazard of scoliosis surgery. CONCLUSIONS: No evidence was found to indicate that children who have a baclofen pump implanted at a young age have fewer orthopedic surgeries than those who have a baclofen pump implanted at later ages.

Selective dorsal rhizotomy in children with spastic hemiparesis.

OBJECT: Neurological conditions including cerebral palsy, brain injury, and stroke often result in severe spasticity, which can lead to significant deformity and interfere with function. Treatments for spasticity include oral medications, intramuscular botulinum toxin type A injections, orthopedic surgeries, intrathecal baclofen pump implantation, and selective dorsal rhizotomy (SDR). Selective dorsal rhizotomy, which has been well studied in children with spastic diplegia, results in significant reduction in spasticity and improved function in children. To the authors' knowledge, there are no published outcome data for SDR in patients with spastic hemiparesis. The object of this study was to examine the effects of SDR on spastic hemiparesis. METHODS: A 2-year study was undertaken including all children with spastic hemiparesis who underwent SDR at the authors' institution. The degree of spasticity, as measured by the Modified Ashworth Scale or quality of gait rated using the visual gait assessment scale, the gait parameters, and velocity were compared in patients before and after undergoing SDR. RESULTS: Thirteen children (mean age 6 years 7 months) with spastic hemiparesis underwent SDR performed by the same surgeon during a 2-year period. All of the patients had a decrease in tone in the affected lower extremity after the procedure. The mean reduction in tone in 4 muscle groups (hip adductors, knee flexors, knee extensors, and ankle plantar flexors) according to the modified Ashworth scale score was 2.6 ± 1.26 (p < 0.0001). The quality of gait was assessed in 7 patients by using the visual gait assessment scale. This score improved in 6 patients and remained the same in 1. Stride length and gait velocity were measured in 4 children. Velocity increased in 3 patients and decreased in a 3-year-old child. Parents and clinicians reported an improvement in quality of gait after the procedure. Stride length increased bilaterally in 3 patients and increased on one side and decreased on the other in the other patient. CONCLUSIONS: Selective dorsal rhizotomy showed efficacy in the treatment of spastic hemiparesis in children. All of the patients had decreased tone after SDR as measured by the modified Ashworth scale. The majority of patients had qualitative and quantitative improvements in gait.

An intensive motor skills treatment program for children with cerebral palsy.

This article describes the development and efficacy of the Intensive Motor Skills Program conducted at Primary Children's Medical Center. The program was designed for children with cerebral palsy who have undergone a medical procedure and were determined to need a "jumpstart" to gain functional skills. Data was collected from parent interviews that determine desired outcomes during the two-week program. Parent ratings of performance and satisfaction were then analyzed to determine parents' perceptions of the program. Information was also collected and analyzed from therapists' short-term objectives and parent satisfaction surveys. The results indicated that parents perceived positive changes in their children's performance on goals addressed during the program. Positive changes in parents' satisfaction with how their child performed on the defined goals were also noted. Therapists documented that children in the program required decreasing levels of assistance on short-term objectives as the program progressed.

Surgical treatment of spasticity in children: comparison of selective dorsal rhizotomy and intrathecal baclofen pump implantation.

INTRODUCTION: Neurosurgical treatments for spasticity in children include the traditional selective dorsal rhizotomy (SDR) and intrathecal baclofen pumps (ITBPs), which have been widely used in the past decade as an attractive alternative. The purpose of the study was to examine and compare the outcomes of these two procedures in the treatment of children with severe spasticity. MATERIALS AND METHODS: A consecutive series of 71 children who underwent SDR for treatment of spasticity was compared with a group of 71 children matched by age and preoperative score on the Gross Motor Function Classification System (GMFCS) who underwent ITBP placement. Change in GMFCS score, lower-extremity tone (based on the Modified Ashworth-Bohannon Scale), and lower-extremity passive range of movement (PROM) at 1 year as well as the need for subsequent orthopedic procedures and parents' satisfaction were selected as outcome measures. RESULTS: At 1 year, both SDR and ITBP decreased tone, increased PROM, and improved function. Both procedures resulted in a high degree of patient satisfaction. Compared with ITBP, SDR provided a larger magnitude of improvement in tone (-2.52 vs -1.23, p < 0.0001), PROM (-0.77 vs -0.39, p = 0.0138), and gross motor function (-0.66 vs -0.08, p < 0.0001). In addition, fewer patients in the SDR group required subsequent orthopedic procedures (19.1 vs 40.8%, p = 0.0106). CONCLUSIONS: For children with moderate to severe spasticity, SDR and ITBP are both effective surgical treatments. Our results indicate SDR is more effective in reducing the degree of spasticity and improving function than ITBP is in this group of patients.

Care provider assessment of intrathecal baclofen in children.

Intrathecal baclofen is used increasingly to manage severe spasticity in children. Before implanting the baclofen pump, care providers typically ask how it will benefit their child. The purpose of this study was to describe the perceptions of care providers about intrathecal baclofen for management of spasticity in 80 individuals (52 males, 28 females). The individuals were younger than 22 years at the time of implantation (mean age 11 years, SD 5 years; range 3 to 21 years). Participants had been implanted with the pump for a minimum of one year at the time of evaluation. The most common diagnoses were quadriplegic and diplegic cerebral palsy and traumatic brain injury. Most participants were at level IV and V on the Gross Motor Function Classification System. After pump implantation most participants had tone reduction on the Ashworth scale of 1 to 1.9 in the lower extremities and 0 to 0.9 in the upper extremities. Lower extremity range of motion was maintained in 43 of 51 individuals (84%) and lost in 8 participants (16%). Complications requiring surgery occurred in 63 of a larger group of 152 patients (incidence per patient-year of follow-up was 0.19). Thirty-one of the 80 children had orthopedic procedures after pump placement. Only one of these was unexpected and none had rapid progression of scoliosis. Most treatment goals were achieved. Goals most commonly chosen (decreased pain, prevention of worsening of deformity, and improved ease of care) were improved in 91%, 91%, and 88% of participants respectively. Ninety-five per cent of care providers agreed that they would have this procedure performed again (81% strongly agreed, 14% slightly agreed). All care providers reported improvement in scores on the Caregiver Questionnaire. This information has been helpful to families considering intrathecal baclofen therapy.

Complications of intrathecal baclofen pumps in children.

Intrathecal baclofen is increasingly being used to manage severe spasticity in children. Although substantial tone reduction with this treatment has been documented, complications also occur. In this study, we describe the device- and major non-device-related complications in a group of 100 consecutive children and young adults who received 117 intrathecal baclofen pumps for the management of severe spasticity. Twenty-four patients (24%) experienced a total of 48 complications. The most common complication was disconnection of the catheter at its connection to the pump, occurring in 9% of pumps implanted. This complication occurred more frequently in pumps with catheter access ports (16%) than in those without ports (2%). Catheter dislodgement from the intrathecal space was the next most common complication, occurring in 8% of pumps implanted (13% of pumps with ports, 4% of pumps without ports). To decrease the occurrence of the most common complications of intrathecal pumps, we now typically implant pumps without catheter access ports, and we use 2-piece catheters. Although the lack of an access port may be a disadvantage for troubleshooting, most complications can be detected in pumps without a port. Patient and family education is critical in preventing serious consequences of baclofen withdrawal resulting from catheter-related complications.