"Growing pains" in children are not associated with changes in vascular perfusion patterns in painful regions

Area of Science:

• Pediatric Musculoskeletal Disorders
• Diagnostic Imaging
• Vascular Physiology

Background:

• Growing pains (GP) are the most frequent cause of recurring musculoskeletal pain in children.
• The exact cause and development of GP remain unknown.
• A familial link between GP and migraine headaches suggests a potential vascular component.

Purpose of the Study:

• To investigate whether growing pains are associated with changes in vascular perfusion.
• To utilize technetium-99 methylene diphosphate (MDP) bone scintigraphy for measuring blood flow.
• To compare vascular perfusion in painful versus non-painful regions in children with GP.

Main Methods:

• Compared 11 children with GP to 12 controls using technetium-99 MDP bone scans.
• Measured radionuclide uptake in the blood pool and static phases, and their ratio, in tibial and femoral regions.
• Employed Student's t-test to analyze differences between groups and between painful/non-painful sites.

Main Results:

• No significant differences in blood pool uptake, static image uptake, or blood pool/static image ratios were found between children with and without GP.
• No significant differences were observed in vascular perfusion measurements between painful and non-painful regions within the GP group.
• The findings indicate no association between GP and altered vascular perfusion in affected limbs.

Conclusions:

• Growing pains are not associated with measurable changes in vascular perfusion in the painful regions.
• The study does not support the hypothesis that GP have a vascular etiology.
• Further research is needed to elucidate the underlying mechanisms of growing pains.