BackgroundIn order to facilitate normal gait, toes require to be in a rectus position during the propulsive phase. This requires a correct balance and sequence of activity of the intrinsic musculature of the feet. Alteration of this balance and sequence may lead to the development of claw toes. Atrophy of the lumbricals occurs in the development of claw toes, but it is not known if changes occur in any other intrinsic muscles, including flexor digitorum brevis. This study set out to investigate whether hypertrophic changes were evident in flexor digitorum brevis in feet with claw toes.MethodsFour cadaver feet were investigated, two with rectus toes and two with claw toes. Flexor digitorum brevis was removed from each, and seven anatomically significant tissue sections from each muscle were routinely processed, cut and stained. One hundred and sixty muscle fibre cross sectional areas were measured from each section.ResultsThe mean age of the donors was 81.5 years, and three of the four were female. Results showed that the cross sectional area of fibres from feet with claw toes was 417 μg2 significantly greater (p < 0.01) than the cross sectional area of fibres from feet with rectus toes, which was 263 μg2.ConclusionsAlthough this study has several limitations, preliminary observations reveal that flexor digitorum brevis muscle fibre cross sectional area is significantly reduced in feet with claw toes. This would indicate a relationship between muscle fibre atrophy of flexor digitorum brevis and clawing of the lesser toes.
BackgroundAssessing diabetic foot ulcers (DFUs) for infection is difficult because clinical symptoms and signs may be masked by neuropathy and vasculopathy and there are no objective tests available at point of care to guide clinicians. Empirical prescription of antibiotics compromises antibiotic stewardship, while missing early infection may lead to severe infection and amputation. In 2011-12, the cost of managing DFUs and associated amputations borne by NHS England was £650 million, nearly 1% of its budget. Our INDUCE study had two aims: (1) to develop an online educational tool for DFU infection and (2) to conduct a pilot study investigating C-reactive protein (CRP) and procalcitonin from venous blood and calprotectin from wound exudate as inflammatory biomarkers of mild DFU infection. Methods Yola software was used to develop an online educational tool covering DFU history and examination, arterial assessment, microbiology, radiology and management of osteomyelitis. The tool contains links to NICE guidance and other relevant learning resources. A quiz using patient scenarios is included. Feedback from podiatrists was elicited by questionnaires and a focus group. Patients with non-infected or mildly infected DFUs were recruited from community podiatry clinics in 2 UK regions. Exclusion criteria included immunosuppression or receipt of antibiotics within the previous 2 weeks. Antibiotics were prescribed based on clinical judgement at the baseline assessment. Our gold standard defining DFU infection was the clinician's judgement one week later, while still blinded to test results, factoring in the response to antibiotic therapy, if prescribed. All 3 inflammatory biomarkers were measured at weeks 0 and 1, including assessment of CRP using a point-of-care device. Results Feedback regarding the educational tool from end-users ranging from trainee to senior podiatrists was very positive. The main improvement requested was a printable certificate after successful completion of the quiz and provision of CPD points. Between September 2014 and September 2015, the INDUCE study recruited 67 patients with DFUs, from a total of 363 potential participants.
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