scholarly journals Shear Stress-Normal Stress (Pressure) Ratio Decides Forming Callus in Patients with Diabetic Neuropathy

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Ayumi Amemiya ◽  
Hiroshi Noguchi ◽  
Makoto Oe ◽  
Kimie Takehara ◽  
Yumiko Ohashi ◽  
...  

Aim. Callus is a risk factor, leading to severe diabetic foot ulcer; thus, prevention of callus formation is important. However, normal stress (pressure) and shear stress associated with callus have not been clarified. Additionally, as new valuables, a shear stress-normal stress (pressure) ratio (SPR) was examined. The purpose was to clarify the external force associated with callus formation in patients with diabetic neuropathy.Methods. The external force of the 1st, 2nd, and 5th metatarsal head (MTH) as callus predilection regions was measured. The SPR was calculated by dividing shear stress by normal stress (pressure), concretely, peak values (SPR-p) and time integral values (SPR-i). The optimal cut-off point was determined.Results. Callus formation region of the 1st and 2nd MTH had high SPR-i rather than noncallus formation region. The cut-off value of the 1st MTH was 0.60 and the 2nd MTH was 0.50. For the 5th MTH, variables pertaining to the external forces could not be determined to be indicators of callus formation because of low accuracy.Conclusions. The callus formation cut-off values of the 1st and 2nd MTH were clarified. In the future, it will be necessary to confirm the effect of using appropriate footwear and gait training on lowering SPR-i.

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4863
Author(s):  
Ayumi Amemiya ◽  
Hiroshi Noguchi ◽  
Makoto Oe ◽  
Kimie Takehara ◽  
Yumiko Ohashi ◽  
...  

Callus has been identified as a risk factor leading to severe diabetic foot ulcer; thus, it is necessary to prevent its formation. Callus formation under the first, second, and fifth metatarsal heads (MTHs) is associated with external forces (pressure and shear stress) during walking. However, the gait factors increasing the external forces remain undetermined. Thus, this study aims to identify the factors increasing the external forces to prevent callus formation. In 59 patients with diabetic neuropathy wearing their usual shoes, the external forces, and the lower extremity joint angles were measured using MEMS force sensors and motion sensors. The external forces and their relationship with the lower extremity joint angles and footwear size were determined. Risk factors causing high external forces on the first MTH included small flexion of the knee joint (p = 0.015) and large ankle pronation motion (p = 0.034) to obtain propulsion. For the second MTH, wearing excessively long footwear was identified (p = 0.026). For the fifth MTH, high external force was related to tight width footwear (p = 0.005). An effective intervention for preventing callus formation for the first MTH would involve assisting the push-off foot motion using rocker-sole footwear or gait training. For the second and fifth MTHs, wearing appropriate size footwear would be effective.


2014 ◽  
Vol 4 (1) ◽  
pp. 22-26 ◽  
Author(s):  
S Sharmisthas ◽  
P Wongchan ◽  
S Hathairat

Diabetic foot ulcer is a preventable complication of diabetes. Nurses must have knowledge related to this condition so that education can be given to patients. This study aims to examine the level of nurses’ knowledge regarding prevention and management of diabetic foot ulcer in Bangladesh. A survey involved 218 nurses working at a national, specialized, and well-established institute of diabetic care of Bangladesh. The Nurses’ Knowledge Regarding Prevention and Management of Diabetic Foot Ulcer Questionnaire (NKPMDFUQ) comprising of 40 questions with 20 true/false questions and 20 multiple choice questions was used. It was content validated and tested for internal consistency and stability yielding acceptable levels of reliability. The findings revealed that nurses had very low level of knowledge (M=52.60%, SD=7.86%). The content areas most nurses did not have knowledge were detecting loss of protective sensation of the feet, caring of callus formation, encouraging patients to have activity of daily living in order to self-manage, setting a goal for prevention of amputation, and giving advice to patients that causes of diabetes is the least important element in diabetic foot care program. The findings are beneficial for establishing training courses. Consequently, quality of care for patients with diabetes will be improved. DOI: http://dx.doi.org/10.3329/birdem.v4i1.18549 Birdem Med J 2014; 4(1): 22-26


2020 ◽  
pp. 384-387
Author(s):  
Sudarvizhi D ◽  
Anandkumar R ◽  
Priyavadana R ◽  
Nithya C ◽  
Mohanapriya S ◽  
...  

Diabetic foot ulcer leads to several problems to the patients. It engenders illness and sometimes deals that. Those wounds lead to nervous problem along with the development of ulcer and amputation which produces high pressure in legs. Perpendicular slope and applied mathematics operation analyzing will be utilized to get foot malformation. The experiential showed a fragile one- dimensionality and an important division in weigh acceptance. Systems can be applied to evade ulceration during the shoe monitoring. Ulceration is the endpoint of the diabetics. The main etiological factors in foot ulceration are diabetic neuropathy and peripheral vascular disease.


Diabetes Care ◽  
2016 ◽  
Vol 40 (2) ◽  
pp. e14-e15 ◽  
Author(s):  
Metin Yavuz ◽  
Ali Ersen ◽  
Jessica Hartos ◽  
Brandy Schwarz ◽  
Alan G. Garrett ◽  
...  

Author(s):  
Dr. Devi Das Verma ◽  
Dr. Anil Kumar Saxena

Introduction:  Diabetes is one of the most prevalent metabolic chronic diseases due to the imbalance production of insulin. One of the studies reported that in 2010 worldwide 285 million adults had diabetes and this figure may be increase to 439 million by the year 2030. Globally Diabetic foot ulcers (DFUs) constitute major health problem in people that significantly contribute to morbidity and mortality in diabetes patients. Approximate 1.0% to 4.1% of the annual population-based incidences of a diabetic foot ulcer (DFU) were reported. Due to this the lifetime may be as high as 25%. In Asian countries diabetic foot ulcer are major problems which are different from European countries or developing countries.  From many studies reported diabetic foot problems in India are infectious and neuropathic in nature as compared to developed countries. According to World Health Organization (WHO) diabetic foot is defined as lower limb of a diabetic patient characterized by infection, potential risk of pathologic consequences ulceration or destruction of deep tissues associated with neurological abnormalities, various changes in peripheral neuropathy vasculopathy and superimposed infection that are mainly responsible foot ulceration. Ulcers are one kind of abscess which is difficult to treat because of poor wound healing that result from a combination of neuropathy, ischemia and hyperglycemia.  Aim: The main objective was to study the outcome of treatment modalities and it’s relating factors to complication in diabetic foot ulcer.  Material and method:  Total 60 diabetic foot ulcer patients with the age range from 20 to 70 years were included.  From all the patients’ detailed past and present history were recorded.  For all the patients, general, physical and local and systemic examinations were also done. Detail   laboratory examination like Fasting and Post Prandial Blood sugar levels, blood count, ECG, ESR, complete urine examination for the presence of ketone bodies and sugar, x-ray as well as culture and sensitivity of the discharge from ulcer were also done. Patients were treated with various treatment methods like conservative treatment, split skin grafting and amputation. Result: In this study male patients were more in proportion as compared to female. This study showed that maximum with the age group 14 -50 (43.3%) years old followed by 18.3% in 31-40 years old, 16.7% in 61-70 years old.  6.7% showed the least age group as 20 -30 years old.  Out of total 60 patients, 38.3% of the patients showed diabetic ulcer foot which was more whereas 15% showed diabetic gangrene foot which was least. 25% showed diabetic cellulites foot and 21.7% showed as diabetic abscess foot.  Conclusion: Globally as diabetes mellitus cases are increasing and it became rapidly the public health problem. This may be due to burden on economy, health system and on society to manage the diabetic foot problems. Diabetic foot management guidelines must be made into our practice protocols which may preventing limb loss, and decrease mortality and increase the quality of life of the patient. Hence for this it is only possible with the help of foot care education and health care workers.  Hence, foot infection is to put first and care for it like hands. Keywords: Diabetes, foot ulcers, infections, amputations.


2015 ◽  
Author(s):  
Fakhraddeen Muhammad ◽  
Lateefah Pedro ◽  
Hassan Suleiman ◽  
Enikuomehin Adenike ◽  
Rahila Mukhtar ◽  
...  

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