Objectives The aim of this review was to identify the potential intrinsic and extrinsic risk factors (RFs), associated factors (AFs) and consequences of developing calcaneal apophysitis (CA). Design Systematic review. Data sources Cochrane Library, Embase, Medline Ovid, PubMed, Web of Science and Evidence, searched from inception to April 2021. Eligibility criteria We included cohort, case–control and cross-sectional studies that were conducted in patients younger than 18 years who were exposed to RFs or who presented with factors associated with developing CA. Studies in languages other than English or Spanish were excluded. Data extraction and synthesis Two reviewers worked independently to evaluate the risk of bias of included studies. The Newcastle–Ottawa Scale (adapted version) was used. Results A total of 736 studies were identified and 11 observational studies fully met the inclusion criteria, including 1265 participants with a mean age of 10.72 years. Four studies identified extrinsic factors, 10 identified intrinsic factors and three identified both. The extrinsic and intrinsic RFs, AFs and consequences of CA include limitation of ankle dorsiflexion, foot alignment, stiffness and mobility of the midfoot, plantar pressures and ground reaction force, body mass index, age, gender, presence of other osteochondroses and practice of sport. The risk of bias varied, being either moderate or low. Conclusions Regarding the factors and consequences associated with CA (Sever’s disease), ankle dorsiflexion limitation is the most frequent intrinsic factor studied, followed by peak plantar pressures and foot malalignment. However, disagreements between the investigators of the included studies were found; in some cases, there is a lack of unanimity between different studies as to which factors are considered to be RFs, AFs and consequences. PROSPERO registration number CRD42021246366.

Background/Objectives: Due to poor perfusion, diabetic foot ulcers (DFUs) create hypoxic environments, and their chronicity represents a negative factor in wound healing. Transcutaneous oxygen pressure (TcPO₂) is a non-invasive method that provides information on oxygen supply to microvascular circulation, useful for determining the severity and progression of peripheral arterial disease (PAD) as well as potentially predicting DFU healing. However, the current literature does not provide strong support for the use of TcPO₂ as an independent predictive tool. Methods: This protocol aims to systematically review the available evidence according to PRISMA (2020) guidelines, registered with the International Prospective Register of Systematic Reviews (registration number: CRD42024505907). The following databases will be used: Cochrane Library, EMBASE, Ovid Medline, PubMed, and Web of Science. Additionally, a manual search will be conducted through the references of the included articles. Results: The systematic review will summarize the current evidence on the prognostic value of TcPO₂ in DFU healing, identifying gaps in knowledge and potential areas for future research. Conclusions: The findings of this study may clarify the prognostic value of TcPO₂ in DFU healing, which could ultimately facilitate clinical management, decision-making, patient care, and potentially reduce treatment costs.

Background/Objectives: Diabetes mellitus (DM) is a group of chronic metabolic disorders characterised by persistent hyperglycaemia and an increasing global prevalence, imposing a significant socioeconomic and healthcare burden. Among its associated complications, the diabetic foot is a critical condition that doubles the risk of mortality. Although therapeutic footwear is an essential preventive strategy, research on treatment adherence has predominantly focused on quantitative parameters. This protocol aims to explore the experiences, needs, and perceived barriers of people with DM regarding therapeutic footwear use from a qualitative perspective. Methods: A qualitative focus group study will be conducted in the province of Alicante, Spain. Participants will be adults with a confirmed diagnosis of DM recruited across IWGDF foot risk categories 1–3 through purposive sampling. A total of 8–10 focus groups of 10–12 participants will be conducted in separate in-person and online modalities. Data will be analysed using reflexive thematic analysis within a constructivist epistemological framework, following the six-phase approach proposed by Braun and Clarke. The study adheres to the Consolidated Criteria for Reporting Qualitative Research (COREQ). Ethical approval will be obtained from the relevant Ethics Committee prior to data collection. Results/Expected Outcomes: The findings are anticipated to generate patient-centred, evidence-based insights into the psychosocial and experiential dimensions of therapeutic footwear adherence, informing the development of novel educational strategies and improvements in footwear design to optimise treatment adherence and clinical outcomes. Conclusions: This protocol provides a rigorous and transparent methodological framework for qualitative investigation of therapeutic footwear adherence in people with DM, contributing to a more comprehensive and person-centred approach to diabetic foot prevention.