head injury sustained in a single motorcycle crash
AI-generated summary
A 55-year-old man with multiple comorbidities (bipolar disorder, OCD, asthma, bronchiectasis, methadone dependency) died from head injury sustained in a motorcycle crash. He was riding 3 weeks after a previous motorcycle crash causing clavicular fracture. Toxicology revealed methadone, oxycodone, diazepam, olanzapine, and high-level cannabis use. The crash investigation identified contributing factors: the healing clavicular fracture would have impaired left-arm control during right-hand cornering; respiratory-depressant drugs compromised reflexes and reaction time. While crash speed was appropriate and conditions excellent, the combination of unhealed injury, polysubstance use, and reduced respiratory capacity created unsafe riding conditions. Clinical learning: patients with recent orthopaedic injuries, polypharmacy with CNS-depressants, and cannabis use require explicit counselling regarding activity restrictions and impaired judgment/reflexes.
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Specialties
general practiceorthopaedic surgeryaddiction medicinepsychiatryforensic medicine
Error types
communication
Drugs involved
methadoneoxycodonediazepamolanzapinecannabis
Clinical conditions
fractured left claviclebipolar disorderobsessive compulsive disorderasthmabronchiectasisopioid addictionacute subdural haemorrhage
Contributing factors
recent clavicular fracture impairing left-arm control during right-hand cornering
methadone, oxycodone, diazepam, olanzapine and cannabis use impairing reflexes and reaction time
bronchiectasis reducing pulmonary function
riding 3 weeks post-injury while still symptomatic
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