Trabecular bone score in adults with cerebral palsy

Area of Science:

• Orthopedics
• Bone Biology
• Neurology

Background:

• Bone fragility is a significant complication in cerebral palsy (CP), stemming from complex functional, hormonal, and nutritional factors impacting bone remodeling.
• Understanding bone microarchitectural changes in CP is crucial for effective therapeutic strategies and improved patient outcomes.

Purpose of the Study:

• To investigate the relationship between trabecular bone score (TBS), bone mineral density (BMD), and fracture incidence in adults with CP.
• To explore the influence of clinical factors and body composition on bone microarchitecture in this population.

Main Methods:

• A retrospective cross-sectional study was conducted involving 43 adults with CP.
• Dual-energy X-ray absorptiometry (DXA) imaging of the lumbar spine was analyzed, along with TBS, BMD, and body composition data.

Main Results:

• Over 55% of participants exhibited TBS values indicative of intermediate or high fracture risk.
• TBS correlated significantly with areal BMD and appendicular lean mass (arm and leg).
• Non-ambulatory patients had lower TBS compared to ambulatory patients.

Conclusions:

• Abnormal bone microarchitecture, assessed by TBS, is prevalent in over 50% of young adults with CP.
• Bone microarchitecture is associated with both areal BMD and lean muscle mass.
• Maintaining muscle function may be vital for bone health in young adults with CP, warranting further investigation.