Introduction. There are currently no quality of life Patient Reported Outcome Measures (PROMs) that have been validated for patients with conditions requiring lower limb reconstructive surgery. The extent to which current generic and lower limb specific PROMs address relevant dimensions for these patients is unclear. Materials and Methods. We will present an overview of the PROLLIT (Patient-Reported Outcome Measure for Lower Limb Reconstruction) mixed-methods study. PROLLIT aims to establish the adequacy of current PROMS for this population, whether a new measure is required, and to develop a new measure if appropriate. Results. The PROLLIT study consists of three phases:. Phase 1 is currently underway and involves the development of a conceptual model to map the key quality of life constructs relevant to people undergoing reconstructive surgery, to specify the intended population and uses of a PROM in this field. The conceptual model is being developed in a 3 step process: (i) Existing evidence is being collated in a systematic review of published qualitative research (Qualitative Evidence Synthesis); (ii) a multi-site qualitative study of patients, orthopaedic surgeons, specialist nurses and physiotherapists; (iii) an interdisciplinary panel of patients, surgeons, healthcare professionals and methodologists to finalise the conceptual framework based on the findings of the Qualitative Evidence Synthesis (i) and qualitative study (ii). Phase 2 involves mapping the conceptual framework onto existing PROMs measures that are used with this population to determine whether the constructs identified as important by patients and healthcare professionals are reflected in existing PROMS. Phase 3 involves developing a new outcome measure, if deemed necessary/appropriate during Phase 2. Conclusions. Current PROMS may not adequately address the issues relevant to patients recovering from lower limb reconstructive surgery. Phase 1 and 2 will provide robust evidence as to whether this is the case in order to seek funding for research to develop a new measure (Phase 3)