Elbow Fractures

The study in question is a post market clinical follow up (PMCF) study to follow up the safety and performance of bioabsorbable headless compression screw Inion CompressOn in fracture fixation of the ankle, knee and elbow of pediatric and adolescent patients. The study aims to recruit 80 patients who meet the acceptance criteria. The follow-up time for each study patient is 4 years. The study is a single center single group study which is conducted in Lighthouse Hospital at Turku University Hospital (TYKS) in Finland. The main focus of the study in terms of performance is to follow up the bone healing/ossification of operated areas. The main focus of the study in terms of safety is to evaluate the occurrence of adverse events and required revision surgeries that are or might be related to the study device.

The primary goal of this proposal is to improve the understanding of the mechanisms causing persistent pain and disability in elbow fracture patients and their associated functional limitations. The specific objectives are as follows for elbow fractures: 1\) To describe NI mechanisms using biomarkers; 2) To identify factors related to increased NI biomarkers level; 3) To describe the associations between NI and outcomes; 4) To use these findings to refine a larger fully powered prognostic cohort study Hypotheses 1. Level of neuro-inflammation (NI) biomarkers\* will be significantly higher in patients presenting with both elbow fracture and CNS injury or PNI. 2. Consumption of opioid in mg of morphine equivalent will be higher in patients with a higher level of NI biomarkers. 3. Function, assessed by validated joint and limb specific functional questionnaires and QoL will be worse in patients with a higher level of NI biomarkers. 4. Chronic pain at 3 months will be higher (McGill Pain questionnaire V2, Neuropathic pain questionnaire, NPRS) in patients with a higher level of NI biomarkers. 5. Duration of tourniquet use and nerve dissection will be correlated to elbow fracture outcome with a higher level of NI biomarkers. * Target biomarkers based on preliminary study will include, but not be limited to: TNFa, IL6, Substance P, IL-1B, TREM-2, IL-16, CCL22, VEGF-a, BMPs (table 1).

The goal of this study is to determine if the Buzzy System, a vibrating ice pack shaped like a bee reduces pain in removal of elbow fracture pin.

The goal of this observational study is to learn about the safety and accuracy of ultrasound as a screening tool to detect broken bones (fractures) in the elbow area in children and youth aged 5 to 15 years. The main question it aims to answer is: \- Can ultrasound reliably show that there is a fracture in the elbow area after an accident? Participants will: * Have an ultrasound of their elbow to look for fluid in the joint. * Have standard X-rays of their elbow to check if there is a fracture. * Have their medical records checked and answer a phone call 6 weeks later to see how their elbow has healed (only if no fracture was found during the first visit).