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This study aims to investigate the effects of adding whirlpool therapy to standard rehabilitation in children with cerebral palsy who recently received botulinum toxin-A injections. Participants will be divided into two groups: one group will receive standard physiotherapy, while the other group will receive physiotherapy combined with whirlpool therapy. The effects of these interventions on spasticity, gait function, and motivation will be evaluated over a 12-week follow-up period.
This study was designed as a prospective, randomized, single-blind (assessor-blinded), parallel-group controlled clinical trial investigating the effects of combining whirlpool therapy with botulinum toxin type A (BoNT-A)-assisted rehabilitation on spasticity, gait, and motivation in children with hemiplegic cerebral palsy.
A total of 81 patients with hemiplegic cerebral palsy who had received botulinum toxin type A (BoNT-A) injections to selected lower extremity muscles within the previous week were initially evaluated. After applying the inclusion and exclusion criteria, 43 participants were enrolled in the study, and 38 patients were excluded. All botulinum toxin injections were performed using onabotulinumtoxinA by an experienced physiatrist with more than five years of clinical experience. Injection planning was individualized according to body weight, severity of spasticity, and targeted muscle groups.
Participants were randomly assigned in a 1:1 ratio to two groups (22 in the intervention group and 21 in the control group). Randomization was performed using a computer-generated random sequence by an independent researcher who was not involved in treatment or assessment. Allocation concealment was ensured using sequentially numbered, opaque, sealed envelopes. The study was conducted as a single-blind trial in which the outcome assessors were blinded to group allocation, while participants and therapists were not blinded because of the nature of the intervention.
Both groups received a conventional rehabilitation program for 4 weeks, 5 days per week, 1 hour per day. The program included range of motion (ROM) exercises for the upper and lower extremities, stretching and strengthening exercises, balance and coordination training, endurance exercises, and ambulation training, all delivered under physiotherapist supervision according to a standardized protocol.
In addition to conventional rehabilitation, the intervention group received whirlpool therapy three times per week for 4 weeks, with each session lasting 20 minutes, for a total of 12 sessions. All whirlpool therapy sessions were conducted under physiotherapist supervision.
Outcome measures were assessed at three time points: baseline (T0, week 0, pre-treatment), post-treatment (T1, week 4), and follow-up (T2, week 12). Spasticity was evaluated using the Modified Ashworth Scale (MAS) and the Modified Tardieu Scale (MTS). Functional mobility and standing/walking abilities were assessed using the Gross Motor Function Measure-88 (GMFM-88) dimensions D and E. Motivation was evaluated using the Pediatric Motivation Scale. Gait kinematics, including joint range of motion and peak flexion and extension angles of the hip, knee, and ankle, were analyzed using the DIERS 4D Motion Lab system. Functional walking performance was assessed using the 10-Meter Walk Test (10MWT).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Botulinum Toxin + Conventional Physiotherapy + Whirlpool Therapy | Experimental | Patients receiving 4 weeks of conventional physical therapy combined with whirlpool therapy (20 minutes per session, 3 times per week). |
|
| Botulinum Toxin + Conventional Physiotherapy | Active Comparator | Patients receiving 4 weeks of conventional physical therapy alone. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Conventional Rehabilitation | Behavioral | Standard rehabilitation program including range of motion exercises, stretching, strengthening, balance, coordination, endurance, and gait training, 5 days per week for 4 weeks under physiotherapist supervision. |
| Measure | Description | Time Frame |
|---|---|---|
| Gross Motor Function Measure-88 (GMFM-88) - Dimension E (Walking, Running and Jumping) | The primary outcome measure was the Gross Motor Function Measure-88 (GMFM-88) Dimension E, which evaluates walking, running, and jumping abilities in children with hemiplegic cerebral palsy. Each item is scored on a 4-point scale (0-3), and raw scores are converted to percentage values (0-100). Dimension E consists of 24 items, with a maximum raw score of 72 points. | Baseline (Week 0), Week 4 (post-treatment), Week 12 (follow-up) |
| Measure | Description | Time Frame |
|---|---|---|
| Modified Ashworth Scale (MAS) | Spasticity was assessed using the MAS. Scores were recorded for the hamstring, gastrocnemius, and adductor muscles of the affected side. The MAS is a 6-point ordinal scale (0, 1, 1+, 2, 3, and 4) used to assess resistance to passive movement, with higher scores indicating greater muscle spasticity. | Week 0, Week 4, Week 12 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| DAMLA CANKURTARAN, MD | Ankara Etlik City Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara Etlik City Hospital | Ankara | Ankara | 06010 | Turkey (Türkiye) |
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| ID | Term |
|---|---|
| D002547 | Cerebral Palsy |
| D009128 | Muscle Spasticity |
| ID | Term |
|---|---|
| D001925 | Brain Damage, Chronic |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D006875 | Hydrotherapy |
| ID | Term |
|---|---|
| D026741 | Physical Therapy Modalities |
| D013812 | Therapeutics |
| D012046 | Rehabilitation |
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This study is a two-arm, parallel-group randomized controlled trial. Participants with hemiplegic cerebral palsy who received recent botulinum toxin-A injections were allocated in a 1:1 ratio to either a conventional physiotherapy group or a conventional physiotherapy plus whirlpool therapy group. The study evaluates the additional effect of whirlpool therapy on rehabilitation outcomes.
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Outcome assessors were blinded to group allocation. Participants and physiotherapists were not blinded due to the nature of the intervention. Group assignments were concealed from evaluators during all assessments and data analyses were performed using coded group labels.
| Whirlpool Therapy | Other | Whirlpool therapy administered 3 times per week for 4 weeks, 20 minutes per session (total 12 sessions), in addition to conventional rehabilitation. |
|
| Pediatric Motivation Scale | Motivation was assessed using the Pediatric Motivation Scale (PMS), a validated self-report instrument designed to evaluate children's motivation toward rehabilitation. The scale consists of 21 items and includes six domains: effort-importance, interest-enjoyment, competence, relatedness, autonomy, and value-usefulness. The first 19 items are rated on a 6-point Likert scale ranging from 1 ("not at all true") to 6 ("very true"), while the remaining two items are open-ended questions. Total and domain scores are calculated from the Likert-scale items. Higher scores indicate greater motivation, stronger engagement in rehabilitation activities, and a higher degree of internally regulated motivation. | Week 4, Week 12 |
| DIERS 4D Motion Analysis System | Three-dimensional gait kinematics were assessed using the DIERS 4D motion analysis system. Maximum hip, knee, and ankle flexion and extension angles of the hemiparetic limb were recorded. Additionally, bilateral knee valgus and varus angles were measured during gait. All data were automatically stored in the system memory for further analysis. | Baseline (Week 0), Week 4, Week 12 |
| 10-Meter Walk Test (10MWT) | Walking performance was assessed using the 10MWT. Participants walked a 10-meter straight path at their comfortable walking speed. Time was recorded in seconds, and gait speed (m/s) and cadence (steps/min) were calculated. Two trials were performed, and the best performance was recorded. | Baseline (Week 0), Week 4, Week 12 |
| Gross Motor Function Measure-88 (GMFM-88) - Dimension D (Standing) | The GMFM-88 Dimension D was used to assess standing ability in children with hemiplegic cerebral palsy. This domain consists of 13 items evaluating static and dynamic standing activities. Each item is scored on a 4-point scale (0-3), and raw scores are converted to percentage values (0-100) based on the maximum achievable score. | Baseline (Week 0), Week 4, Week 12 |
| Modified Tardieu Scale (MTS) | Spasticity was assessed using the MTS for the hamstring and gastrocnemius muscles of the affected side. Passive movement was performed at V1 (slow velocity) and V3 (fast velocity). Muscle reaction quality, R1, R2, and R2-R1 values were recorded. | Week 0, Week 4, Week 12 |
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D009122 | Muscle Hypertonia |
| D020879 | Neuromuscular Manifestations |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |