Soft Tissue InjuriesFacial InjuriesAthletic InjuriesSkatingSports EquipmentWounds and InjuriesSoft Tissue NeoplasmsHand InjuriesSprains and StrainsVascular MalformationsLeg InjuriesSpinal InjuriesTibial FracturesDislocationsLigaments, ArticularFractures, BoneDNA DamageSoft Tissue InfectionsSarcomaBrain InjuriesReperfusion InjuryTreatment OutcomeEmergency Service, HospitalTime FactorsRetrospective StudiesSpinal Cord InjuriesProspective StudiesLung InjuryInjury Severity Score