Effect of Modified Constraint-Induced Movement Therapy on Upper Limb Function in Children with Hemiplegic Cerebral Palsy.

To assess the effectiveness of modified constraint-induced movement therapy (mCIMT) in improving upper limb function and grip strength in children with hemiplegic cerebral palsy (CP). A comprehensive search was conducted from inception to August 2024. Eligibility criteria were studies evaluating the effectiveness of mCIMT on upper limb function in children with hemiplegic CP aged over 2 years. The following data was extracted from each study: participant characteristics, intervention, outcome measures, follow-up, and key findings. The risk of bias and the quality of the evidence were evaluated using the PEDro scale and the grading of recommendations assessment development and evaluation (GRADE), respectively. A meta-analysis using a random-effect model was performed, and standardized mean difference (SMD) with a 95% confidence interval (CI) was estimated for upper limb function and grip strength. A total of 25 studies (1,115 children) were included. PEDro scale revealed 12 good-quality studies, 8 fair-quality studies, and 5 poor-quality studies. The currently available evidence showed a significant large effect of mCIMT in improving upper limb function (SMD: 1.14 [95% CI: 0.46-1.83]; p = 0.001; 12 studies; 454 children; very-low-quality evidence) and significant medium effect in improving grip strength (SMD: 0.63 [95% CI: 0.12-1.14]; p = 0.02; 3 studies; 92 children; low-quality evidence). mCIMT could improve upper limb function and grip strength in children with hemiplegic CP. However, due to the low and very low quality of evidence, further high-quality trials are needed to confirm these effects. PROSPERO registration number (CRD42023413525).