Heel Pressure Ulcers Research Articles

A realist evaluation of devices used for the prevention of heel pressure ulcers: An ethnographic study of clinical practice

BackgroundIt is known that heel offloading devices are widely used in clinical practice for the prevention of heel pressure ulcers, even though there is a lack of robust, good quality evidence to inform their use. ObjectiveTo explore how and why heel offloading devices are used (or not used) and reasoning behind their use in population at high risk of developing heel pressure ulcers. MethodsAn ethnographic study was conducted as part of a realist evaluation in three orthopaedic wards in a large English hospital. Twelve observations took place, with 49 h and 35 min of patient care observed. A total of 32 patients were observed and 19 members of the nursing team were interviewed and in-depth interviews with the three ward managers were conducted. ResultsAlthough the focus of the study was on offloading devices, constant low pressure heel specific devices were also observed in use for pressure ulcer prevention, whilst offloading devices were perceived to be for higher risk patients or those already with a heel pressure ulcer. Nursing staff viewed leadership from the ward manager and the influence of the Tissue Viability Nurse Specialists as key mechanisms for the proactive use of devices. ConclusionsThis study informs trial design as it has identified that a controlled clinical trial of both types of heel specific devices is required to inform evidence-based practice. Involving the ward managers and Tissue Viability Nurse Specialists during set up phase for clinical equipoise could improve recruitment.Tweetable abstractHow, for whom, and in what circumstances do devices work to prevent heel pressure ulcers? Observations of clinical practice.

Impact of material properties in the simulated tissue response in heel pressure ulcer prevention: a preliminary study

Impact of material properties in the simulated tissue response in heel pressure ulcer prevention: a preliminary study

Use of Medical-Grade Honey to Treat Clinically Infected Heel Pressure Ulcers in High-Risk Patients: A Prospective Case Series.

Management of locally infected heel-pressure ulcers (HPUs) remains challenging, and given the increasing occurrence of infections resistant to antibiotic therapy and patients' unwillingness to surgery, innovative and effective approaches must be considered. Medical-grade honey (MGH) could be an alternative therapeutic approach due to its broad-spectrum antimicrobial activity and healing properties. This study aimed to present the high effectiveness and safety of MGH for the conservative treatment of clinically infected HPUs. In this case series, we have prospectively studied nine patients with local signs of infected HPUs. In all cases, HPUs persisted for more than 4 weeks, and previous treatments with topical antibiotics or antiseptic products were ineffective. All patients were at high-risk to develop HPU infection due to their advanced age (median age of 86 years), several comorbidities, and permanent immobility. All wounds were treated with MGH products (L-Mesitran), leading to infection resolution within 3-4 weeks and complete wound healing without complication. Considering the failure of previous treatments and the chronic nature of the wounds, MGH was an effective treatment. MGH-based products are clinically and cost-effective for treating hard-to-heal pressure ulcers such as HPUs. Thus, MGH can be recommended as an alternative or complementary therapy in wound healing.

Offloading devices for the prevention of heel pressure ulcers: A realist evaluation

BackgroundHeel pressure ulcers can cause pain, reduce mobility, lead to longer hospital stays and in severe cases can lead to sepsis, amputation, and death. Offloading boots are marketed as heel pressure ulcer prevention devices, working by removing pressure to the heel, yet there is little good quality evidence about their clinical effectiveness. Given that evidence is not guiding use of these devices, this study aims to explore, how, when, and why these devices are used in hospital settings. ObjectiveTo explore how offloading devices are used to prevent heel pressure ulcers, for whom and in what circumstances. MethodsA realist evaluation was undertaken to explore the contexts, mechanisms, and outcomes that might influence how offloading devices are implemented and used in clinical practice for the prevention of heel pressure ulcers in hospitals. Eight Tissue Viability Nurse Specialists from across the UK (England, Wales, and Northern Ireland) were interviewed. Questions sought to elicit whether, and in what ways, initial theories about the use of heel pressure ulcers fitted with interviewee's experiences. ResultsThirteen initial theories were refined into three programme theories about how offloading devices are used by nurses ‘proactively’ to prevent heel pressure ulcers, ‘reactively’ to treat and minimise deterioration of early-stage pressure ulcers, and patient factors that influence how these devices are used. ConclusionsOffloading devices were used in clinical practice by all the interviewees. It was viewed that they were not suitable to be used by every patient, at every point in their inpatient journey, nor was it financially viable. However, the interviewees thought that identifying suitable ‘at risk’ patient groups that can maintain use of the devices could lead to proactive and cost-effective use of the devices.This understanding of the contexts and mechanisms that influence the effective use of offloading devices has implications for clinical practice and design of clinical trials of offloading devices. Tweetable abstractHow, for whom, and in what circumstances do offloading devices work to prevent heel pressure ulcers? Tissue viability nurses' perspectives.

Heel-selfie for visualization and documentation of heel pressure ulcers.

"heel-selfie" is a method for examination and documentation of heel ulcers, particularly in patients with significant morbidity and impaired mobility. Images can be electronically saved and also be shared with caregivers.

Comparative effectiveness of heel-specific medical devices for the prevention of heel pressure ulcers: A systematic review

BackgroundPressure ulcers (PUs) impact on patient's quality of life and are costly for healthcare providers. Heels are a particular concern due to specific risk factors. Relative effectiveness of medical devices, e.g., dressings, off-loading devices, heel cushioning devices, to reduce PU development is unknown. MethodsSystematic review of the effectiveness of heel-specific medical devices for the prevention of heel PU (HPU)s. Database searches were performed from inception to June 2021 for RCTs. The primary outcome was incidence of new HPUs. Trials were assessed for risk of bias and data analysed with risk ratios, mean difference or hazard ratios as appropriate. ResultsFifteen RCTs (4724 participants) were identified.Dressings, as constant low pressure (CLP) devices vs standard care: eight trials (very low quality) showed no-significant difference in effectiveness (RR 0.31, 95%CI 0.10 to 1.01).Off-loading devices vs standard care: three trials (low quality), showed significant reduction in development of Category≥1 HPUs (RR 0.20, 95%CI 0.05 to 0.80) two trials (medium quality), showed significant reduction in development of Category≥2 HPUs (RR 0.08, 95%CI 0.01 to 0.67).Comparisons between off-loading devices: two trials (low quality) showed no clear difference in HPU incidence.In a paediatric post-surgical population, one trial of off-loading device and one of a dressing (CLP device), both versus standard care, showed no clear difference in HPU incidence (RR 0.19 95%CI 0.02 to 1.55 and RR 0.89 95%CI 0.56 to 1.42 respectively). ConclusionsOff-loading devices may reduce HPU incidence, from low-quality evidence. There is insufficient evidence to suggest that dressings reduce HPU incidence.

The panniculus carnosus muscle: a missing link in the chronicity of heel pressure ulcers?

Chronic and recurring pressure ulcers (PUs) create an unmet need for predictive biomarkers. In this work, we examine the panniculus carnosus, a thin cutaneous muscle, traditionally considered vestigial in humans, and ask whether the panniculus may play a role in the chronicity and reinjury of heel PUs. To determine whether humans have a panniculus muscle layer at the heel, we dissected eight cadavers. To assess the influence of the panniculus layer on PU, we performed computational simulations of supine weight bearing. Finally, we assessed panniculus regeneration in fluorescent mice. Results show a panniculus layer present in all cadavers examined. Simulations show a thin layer of panniculus muscle causes a dramatic decrease in the volume of soft tissue experiencing high strain and stress, compared to a heel without a panniculus. Importantly, in the mouse model, the panniculus fails to regenerate after PU, even when other cutaneous layers had fully regenerated. Our work shows that the panniculus is able to redistribute load around the heel bone, which might allow it to prevent PUs. Moreover, it is highly susceptible to incomplete regeneration after PU. Poor panniculus regeneration after PU might be a predictive anatomical biomarker for recurrence, and this biomarker should be evaluated prospectively in future clinical trials.

Offloading Devices for the Prevention of Heel Pressure Ulcers: A Realist Evaluation

Offloading Devices for the Prevention of Heel Pressure Ulcers: A Realist Evaluation

Heel pressure ulcers: understanding why they develop and how to prevent them.

Because of its anatomical location and the fact that it has no muscle or fascia and little subcutaneous tissue, the heel is highly vulnerable to pressure damage and pressure ulcer development. Heel pressure ulcers are often severe and challenging to heal. Heel pressure ulcers are caused by factors such as pressure, shear and friction and the vulnerability of the heel to pressure damage is increased by immobility, the patient's skin status, the presence of previous pressure ulcers and/or scar tissue, and suboptimal tissue perfusion. The risk is also increased in patients with diabetes mellitus. The role of nurses includes assessing the risk and preventing the development of heel pressure ulcers. This article discusses the causes of, and risk factors for, heel pressure ulcers and describes techniques and devices that nurses can use to prevent them.

Preoperative contaminated wound management using short-term negative pressure wound therapy with instillation.

The short-term application of negative pressure wound therapy with instillation and dwell time (NPWTi-d) enables the delivery of topical wound solutions, the solubilisation of debris and cleansing of the wound bed. The application of NPWTi-d may support the transition of the wound to a more manageable state and minimises the use of more invasive techniques. In this case series, we describe the process of applying NPWTi-d early as part of a contaminated wound treatment plan. The case series included 15 patients in the preoperative setting. Wound types included surgical dehiscence, hard-to-heal wounds, heel pressure ulcers, diabetic foot ulcers, a cat bite and an amputation left open. Normal saline or a 0.125% sodium hypochlorite solution were instilled and allowed to dwell for five minutes, followed by 15 minutes of continuous negative pressure at -125mmHg. NPWTi-d was continued for 4-36 hours, or until the operating room became available. After NPWTi-d, we observed a decreased amount of devitalised tissue in the wound bed and reduced oedema and erythema in the periwound area. Patient white blood cells also significantly decreased in all cases after NPWTi-d (p<0.001). Short-term use of NPWTi-d may be a useful option for supporting the surgical treatment of contaminated lower extremity wounds.

MR-compatible loading device for assessment of heel pad internal tissue displacements under shearing load.

In the last decade, the role of shearing loads has been increasingly suspected to play a determinant impact in the formation of deep pressure ulcers. In vivo observations of such deformations are complex to obtain. Previous studies only provide global measurements of such deformations without getting the quantitative values of the loads that generate these deformations. To study the role that shearing loads have in the etiology of heel pressure ulcers, an MR-compatible device for the application of shearing and normal loads was designed. Magnetic resonance imaging is a key feature that allows to monitor deformations of soft tissues after loading in a non-invasive way. Measuring applied forces in an MR-environment is challenging due to the impossibility to use magnetic materials. In our device, forces are applied through the compression of springs made of polylactide. Shearing and normal loads were applied on the plantar skin of the human heel through a flat plate while acquiring MR images. The device materials did not introduce any imaging artifact and allowed for high quality MR deformation measurements of the internal components of the heel. The obtained subject-specific results are an original data set that can be used in validations for Finite Element analysis and therefore contribute to a better understanding of the factors involved in pressure ulcer development.

Heel pressure ulceration: the perennial clinical and financial problem?

The heel of the foot is particularly susceptible to pressure, friction and shear forces. In consequence, heel pressure ulcers account for approximately 18% of all hospital-acquired pressure ulcers in England. To ameliorate the effects of friction and shear forces, the use of heel protectors made from silk-like fabric is recommended. This article outlines how one such product, the Parafricta bootee (APA Parafricta), has facilitated a reduction in heel pressure ulcer development, resulting in both time and cost savings in an acute NHS trust over the course of 8 years and thousands of patients. A cost-analysis will also be detailed to show that if the products and processes pioneered by this trust were used throughout NHS England, over £300 million in resource savings could be achieved each year.

Silicone adhesive multilayer foam dressings as adjuvant prophylactic therapy to prevent hospital-acquired pressure ulcers: a pragmatic noncommercial multicentre randomized open-label parallel-group medical device trial.

SummaryBackgroundSilicone adhesive multilayer foam dressings are used as adjuvant therapy to prevent hospital‐acquired pressure ulcers (PUs).ObjectivesTo determine whether silicone foam dressings in addition to standard prevention reduce the incidence of PUs of category 2 or worse compared with standard prevention alone.MethodsThis was a multicentre, randomized controlled medical device trial conducted in eight Belgian hospitals. At‐risk adult patients were centrally randomized (n = 1633) to study groups based on a 1 : 1 : 1 allocation: experimental groups 1 (n = 542) and 2 (n = 545) – pooled as the treatment group – and the control group (n = 546). The experimental groups received PU prevention according to hospital protocol, and a silicone foam dressing on the relevant body sites. The control group received standard of care. The primary endpoint was the incidence of a new PU of category 2 or worse at the studied body sites.ResultsIn the intention‐to‐treat population (n = 1605), PUs of category 2 or worse occurred in 4·0% of patients in the treatment group and 6·3% in the control group [relative risk (RR) 0·64, 95% confidence interval (CI) 0·41–0·99, P = 0·04]. Sacral PUs were observed in 2·8% and 4·8% of the patients in the treatment group and the control group, respectively (RR 0·59, 95% CI 0·35–0·98, P = 0·04). Heel PUs occurred in 1·4% and 1·9% of patients in the treatment and control groups, respectively (RR 0·76, 95% CI 0·34–1·68, P = 0·49).ConclusionsSilicone foam dressings reduce the incidence of PUs of category 2 or worse in hospitalized at‐risk patients when used in addition to standard of care. The results show a decrease for the sacrum, but no statistical difference for the heel and trochanter areas.

Clinical effectiveness of a silicone foam dressing for the prevention of heel pressure ulcers in critically ill patients: Border II Trial

Critically ill patients are at high risk of developing pressure ulcers (PU), with the sacrum and heels being highly susceptible to pressure injuries. The objective of our study was to evaluate the clinical effectiveness of a new multi-layer, self-adhesive soft silicone foam heel dressing to prevent PU development in trauma and critically ill patients in the intensive care unit (ICU). A cohort of critically ill patients were enrolled at the Royal Melbourne Hospital. Each patient had the multi-layer soft silicone foam dressing applied to each heel on admission to the emergency department. The dressings were retained with a tubular bandage for the duration of the patients' stay in the ICU. The skin under the dressings was examined daily and the dressings were replaced every three days. The comparator for our cohort study was the control group from the recently completed Border Trial. Of the 191 patients in the initial cohort, excluding deaths, loss to follow-up and transfers to another ward, 150 patients were included in the final analysis. There was no difference in key demographic or physiological variables between the cohorts, apart from a longer ICU length of stay for our current cohort. No PUs developed in any of our intervention cohort patients compared with 14 patients in the control cohort (n=152; p<0.001) who developed a total of 19 heel PUs. We conclude, based on our results, that the multi-layer soft silicone foam dressing under investigation was clinically effective in reducing ICU-acquired heel PUs. The findings also support previous research on the clinical effectiveness of multi-layer soft silicone foam dressings for PU prevention in the ICU.

Cost-effectiveness of multi-layered silicone foam dressings for prevention of sacral and heel pressure ulcers in high-risk intensive care unit patients: An economic analysis of a randomised controlled trial.

Pressure ulcer incidence is high in intensive care units. This causes a serious financial burden to healthcare systems. We evaluated the cost‐effectiveness of multi‐layered silicone foam dressings for prevention of sacral and heel pressure ulcers in addition to standard prevention in high‐risk intensive care units patients. A randomised controlled trial to assess the efficacy of multi‐layered silicone foam dressings to prevent the development of pressure ulcers on heels and sacrum among 422 intensive care unit patients was conducted. Direct costs for preventive dressings in the intervention group and costs for treatment of incident pressure ulcers in both groups were measured using a bottom‐up approach. A cost‐effectiveness analysis by calculating the incremental cost‐effectiveness ratio using different assumptions was performed. Additional dressing and labour costs of €150.81 (€116.45 heels; €34.36 sacrum) per patient occurred in the intervention group. Treatment costs were €569.49 in the control group and €134.88 in the intervention group. The incremental cost‐effectiveness ratio was €1945.30 per PU avoided (€8144.72 on heels; €701.54 sacrum) in the intervention group. We conclude that application of preventive dressings is cost‐effective for the sacral area, but only marginal on heels for critically ill patients.

Deal with heels: a pressure ulcer prevention initiative.

Pressure ulcers/injuries are well known for being a common problem in healthcare and are a key indicator of the quality and experience of patient care. This article discusses how one NHS trust reduced the incidence of heel pressure ulcers within adult inpatient settings. In 2016/17, the trust identified 14 avoidable category 3 and above pressure ulcers/injuries in inpatient settings, of which 10 had developed on the heels. Through root cause analysis, the organisation identified themes, which prompted action, and a quality improvement project 'Deal with heels' was planned and implemented. Changes were introduced through a collaborative and structured approach; the key stakeholders included the tissue viability team, procurement, medical devices, patient safety, managers, matrons, ward sisters and tissue viability link advisors, who worked together to reduce heel ulcer prevalence through education and standardised practice. As a result of improved organisational awareness and some changes, the number of heel pressure ulcers/injuries reduced to two over a 3-year period, which also helped reduce the total number of avoidable pressure ulcers/injuries.

The effectiveness of two silicone dressings for sacral and heel pressure ulcer prevention compared with no dressings in high-risk intensive care unit patients: a randomized controlled parallel-group trial.

There is a high incidence of pressure ulcers in high-risk settings such as intensive care. There is emerging evidence that the application of dressings to pressure ulcer predilection areas (sacrum and heels) improves prevention strategies. To determine whether preventive dressings, applied to the sacrum and heels of high-risk patients in intensive care units, in addition to standard prevention, reduces the incidence of pressure ulcers. Between June 2015 and July 2018, a randomized, controlled, two-arm, superiority pragmatic study was performed with a concealed 1:1 allocation to the intervention and control group. Patients assigned to the intervention group had dressings applied to the sacrum and heels. In total, 7575 patients were screened for eligibility and 475 patients were included and allocated to both groups. Finally, 212 patients in the intervention group and 210 in the control group were analysed. The mean age was 63·5 years and the majority of patients were male (65·4%). The cumulative pressure ulcer incidence category II and above was 2·8% in the intervention, and 10·5% in the control group (P = 0·001). Compared with the control group, the relative risk in the intervention group was 0·26 [95% confidence interval (CI) 0·11-0·62] and the absolute risk reduction was 0·08 (95% CI 0·03-0·13). The results indicate that the application of dressings, in addition to standard prevention, in high-risk intensive care unit patients is effective in preventing pressure ulcers at the heels and sacrum. What's already known about this topic? Pressure ulcers are severe soft tissue injuries and wounds, which occur worldwide in all healthcare settings. Despite preventive interventions, pressure ulcers still develop. There is emerging evidence that dressings help to prevent pressure ulcers. What does this study add? The incidence of pressure ulcers in intensive care units among high-risk patients remains high. The application of dressings to the sacrum and heels, in addition to standard preventive measures, reduces the relative and absolute risks for the development of pressure ulcers. The application of preventive dressings at the heels and sacrum seems to be feasible in intensive care settings.

Evaluate the Incidence of Sacral and Heel Pressure Ulcers During Acute Care After SCI

Evaluate the Incidence of Sacral and Heel Pressure Ulcers During Acute Care After SCI

The role of using a special support surface in heel pressure ulcers appearance in intensive care unit patients

Introduction: Intensive Care Unit (ICU) patients suffer complications such as the development of pressure ulcers. Aim: The purpose of this study was to investigate the relationship between the use of special designed heel protector and the frequency and severity of heel pressure ulcers occurrence in ICU patients. Material and Method: The studied sample consisted of 40 patients hospitalized in ICU of a general hospital in Attica. Hospital Acquired Skin Injury (HASI) and Cubin Jackson (Score Cubin-Jackson) were used and data analysis was performed by the statistical package SPSS 19. Results: 62,5% of the studied sample were men, with mean age 59±17.7 years and length of hospital stay 21.4±18 days. The preventive intervention applied in the present study was effective, as no patient develop pressure ulcers. However, the incidence of tissue lesions at the unstressed edge did not appear to be influenced by factors such as patient age (p = 0.586), gender (p = 0.674 F = 0.180), total blood protein levels (p = 0.732 ), albumin levels (0.185) and hematocrit (p = 0.669). Conclusions: In those patients that the pressure ulcers heel protectors were applied no one develops pressure ulcers during their stay in ICU. On the contrary, in those patients

Free flap and kickstand external fixator in foot and ankle soft tissue reconstruction. The versatility of a microsurgical-friendly application of an orthopedic device

IntroductionFoot and ankle are prone to injuries and often require free flap for complex soft tissue reconstruction due to the insufficiency of local soft tissue. Lower limb reconstruction can be commonly compromised by venous insufficiency, and the elevation of the limb represents a critical component of the postoperative care. This study aims to explore the versatility of combining free soft tissue flap reconstruction for complex foot and ankle defect with a temporary Kickstands External Fixator (KEF) placement. Materials and methodsA retrospective analysis was performed on 14 patients with unilateral foot or ankle complex soft tissue defects (post-traumatic, soft tissue infection and osteomyelitis, chronic skin ulcer, sarcoma), treated with free flap and KEF placement. Patients’ demographics, etiology of injury, type of reconstruction, duration of KEF, complications related to the flap and the KEF placement were recorded. ResultsThe mean age of patients was 52.57-year-old (range 35–68). The average follow up was 15.5 months (range: 3–25). An anterolateral thigh (ALT) flap was performed in 12 patients; 2 patients received composite forearm free flap plus flexor carpalis radial for Achilles tendon reconstruction. The average time for KEF removal was 378 weeks. All flaps survived, though partial necrosis was observed in 1 case. No complication at the flap donor site or related to the KEF placement was observed. No equinus deformity was reported. ConclusionThe KEF placement when performing a complex soft tissue free flap reconstruction of foot and ankle could be an effective method to guarantee limb elevation, avoid pressure on the flap especially in posterior reconstructions, avoid heel pressure ulcer formation and equinus deformity.