‣What is cozen's fracture?Proximal tibia Metaphyseal Fracture‣What is the classic MOI?Typically low-energy with valgus force across the knee creating incomplete fracture of proximal tibiaCan also result from torsional injuryClassic mechanism is a child going down a slide in the lap of an adult with leg extended‣What is cozen's Phenomenon?It is the phenomenon whereby valgus deformity progresses rapidly in the first yearReaching max deformity before spontaneously correcting over next few years‣Parent ask what will come of this fracture?Explain 50% of patients will develop valgus deformityAll of which should self correctYvonne-Mary Papamerkouriou et al. JPO 2020 study of 33 patients ➔ 50% develop valgus ➔ all self corrected‣Is it associated with LLD?Usually a/w lengthening of 1cm