Determining risk factors for surgical wound dehiscence: Development and internal validation of a risk assessment tool

Whilst surgical procedures are considered safe, complications such as surgical wound dehiscence (SWD) may occur despite advances in surgical techniques, infection control practices and wound care. A SWD risk assessment tool was developed from identified risk factors based on a review of the literature and a retrospective case control study. A prospective clinical validation of the tool yielded a predictive power of 71% with an interrater reliability of 100%

An advanced transparent hydropolymer wound dressing for undisturbed post‐op management of surgical wounds following hip and knee replacement: A prospective observational series

Total hip arthroplasty (THA) and total knee arthroplasty (TKA) are standardised surgical procedures for patients with complex comorbidities. The enhanced recovery after surgery (ERAS) protocol has shown reduced lengths of hospital stay and reduced postoperative complications. Currently, there is a paucity of recommendations in regards to dressing selection for postoperative wound care within the ERAS protocol. The aim of this study was to investigate the usefulness of a transparent hydropolymer wound dressing in suit for 14 days in 20 orthopaedic patients following hip or knee arthroplasty under the ERAS protocol. The majority of participants (90%) had a wear time of 14 days without the need for dressing removal. Clinicians rated the dressing very easy to apply with very good visibility of the incision line (100%). All participants reported the dressing to be ‘very comfortable’ (95%, n = 19) or ‘comfortable’ (5%, n = 1). Overall, the transparent hydropolymer dressing provided sufficient incision site visibility, reducing the need for dressing changes. To the best of our knowledge, this is the first study to show that the use of a transparent hydropolymer dressing in situ for 14 days to allow undisturbed wound healing

Uncovering the high prevalence of bacterial burden in surgical site wounds with point‐of‐care fluorescence imaging

Detection of bacterial burden within or near surgical wounds is critical to reducing the occurrence of surgical site infection (SSI). A distinct lack of reliable methods to identify postoperative bioburden has forced reliance on clinical signs and symptoms of infection (CSS). As a result, infection management has been reactive, rather than proactive. Fluorescence imaging of bacterial burden (FL) is positioned to potentially flip that paradigm. This post hoc analysis evaluated 58 imaged and biopsied surgical site wounds from the multi-centre fluorescence imaging assessment and guidance clinical trial. Diagnostic accuracy measures of CSS and FL were evaluated. A reader study investigated the impact of advanced image interpretation experience on imaging sensitivity. Forty-four of fifty-eight surgical site wounds (75.8%) had bacterial loads >104 CFU/g (median = 3.11 × 105 CFU/g); however, only 3 of 44 were CSS positive (sensitivity of 6.8%). FL improved sensitivity of bacterial detection by 5.7-fold compared with CSS alone (P = .0005). Sensitivity improved by 11.3-fold over CSS among clinicians highly experienced with FL interpretation (P < .0001). Surgical sites that reach the stage of referral to a wound specialist frequently harbour asymptomatic high bacterial loads that delay healing and increase infection risk. Advanced imaging of pathological bacterial burden improves surgical site monitoring and may reduce the rate of SSIs

Patients’ perceptions and experiences of living with a surgical wound healing by secondary intention : a qualitative study

Background: Most surgical wounds heal by primary intention, that is to say, the edges of the wound are brought together with sutures, staples, adhesive glue or clips. However, some wounds may be left open to heal (if there is a risk of infection, or if there has been significant tissue loss), and are known as ‘surgical wounds healing by secondary intention’. They are estimated to comprise approximately 28% of all surgical wounds and are frequently complex to manage. However, they are under researched and little is known of their impact on patients’ lives. Objectives: To explore patients’ views and experiences of living with a surgical wound healing by secondary intention. Design: A qualitative, descriptive approach. Settings: Participants were recruited from acute and community nursing services in two locations in the North of England characterised by high levels of deprivation and diverse populations. Participants: Participants were aged 18 years or older and had at least one surgical wound healing by secondary intention, which was slow to heal. Purposeful sampling was used to include patients of different gender, age, wound duration and type of surgery (general, vascular and orthopaedic). Twenty people were interviewed between January and July 2012. 2 Methods: Semi-structured interviews were conducted, guided by use of a topic guide developed with input from patient advisors. Data were thematically analysed using steps integral to the ‘Framework’ approach to analysis, including familiarisation with data; development of a coding scheme; coding, charting and cross comparison of data; interpretation of identified themes. Findings: Alarm, shock and disbelief were frequently expressed initial reactions, particularly to “unexpected” surgical wounds healing by secondary intention. Wound associated factors almost universally had a profound negative impact on daily life, physical and psychosocial functioning, and wellbeing. Feelings of frustration, powerlessness and guilt were common and debilitating. Patients’ hopes for healing were often unrealistic, posing challenges for the clinicians caring for them. Participants expressed dissatisfaction with a perceived lack of continuity and consistency of care in relation to wound management. Conclusions: Surgical wounds healing by secondary intention can have a devastating effect on patients, both physical and psychosocial. Repercussions for patients’ family members can also be extremely detrimental, including financial pressures. Health care professionals involved in the care of patients with these wounds face multiple, complex challenges, compounded by the limited evidence base regarding cost-effectiveness of different treatment regimens for these types of wounds

Surgical wounds healing by secondary intention: characterising and quantifying the problem, identifying effective treatments, and assessing the feasibility of conducting a randomised controlled trial of negative pressure wound therapy versus usual care

Background: Most surgical incisions heal by primary intention (i.e. wound edges are apposed with sutures, clips or glue); however some heal by secondary intention (i.e. the wound is left open and heals by formation of granulation tissue). There is, however, a lack of evidence regarding the epidemiology, management, and impact on patients’ quality of life of these surgical wounds healing by secondary intention (SWHSI), resulting in uncertainty regarding effective treatments and difficulty in planning care and research. Objectives: To derive a better understanding of the nature, extent, costs, impact and outcomes of SWHSI, effective treatments and the value and nature of further research. Design: Cross-sectional survey; inception cohort; cost-effectiveness and value of implementation analyses; qualitative interviews; and a pilot, feasibility randomised controlled trial (RCT). Setting: Acute and community care settings in Leeds and Hull, Yorkshire, UK. Participants: Adults with (or for qualitative interviews, patients or practitioners with previous experience of) a SWHSI. Inclusion criteria varied between the individual Workstreams. Interventions: The pilot, feasibility RCT compared negative pressure wound therapy (NPWT) – a device applying a controlled vacuum to a wound via a dressing - with Usual Care (no NPWT). Results: Survey data estimated that treated SWHSI have a point prevalence of 4.1 per 10,000 population (95% CI: 3.5 to 4.7). SWHSI most frequently occurred following colorectal surgery (n=80, 42.8% - Cross-sectional survey, n=136, 39.7% - Inception cohort), and were often planned before surgery (n=89, 47.6% - Survey, n=236, 60.1% - Cohort). Wound care was frequently delivered in community settings (n=109, 58.3%) and most patients (n=184, 98.4%) received active wound treatment. Cohort data identified hydrofibre dressings (n=259, 65.9%) as the most common treatment, although 29.3% (n=115) participants used NPWT at some time during the study. SWHSI healing occurred in 81.4% (n=320) of participants at a median of 86 days (95% CI: 75 to 103). Baseline wound area (p=<0.01), surgical wound contamination (determined during surgery) (p=0.04) and wound infection at any time (p=<0.01) (i.e. at baseline or post-operatively) were found to be predictors of prolonged healing. Econometric models, using observational, cohort study data, identified that with little uncertainty, that NPWT treatment is more costly and less effective than standard dressing treatment for the healing of open surgical wounds: Model A (ordinary least squares with imputation): Effectiveness: 73 days longer than those who did not receive NPWT (95% Credible Interval (CrI): 33.8 to 112.8); Cost Effectiveness (Associated incremental quality adjusted life years): -0.012 (SE 0.005) (Observables); -0.008 (SE 0.011) (Unobservables) , Model B (Two Stage Model – Logistic and linear regression): Effectiveness: 46 days longer the those who did not receive NPWT (95% CrI: 19.6 to 72.5); Cost Effectiveness (Associated incremental quality adjusted life years): -0.007 (Observables) and -0.027 (Unobservables) (SE 0.017). Patient interviews (n=20) identified initial reactions to SWHSI of shock and disbelief. Impaired quality of life characterised the long healing process, with particular impact on daily living for patients with families or in paid employment. Patients were willing to try any treatment promising wound healing. Health professionals (n=12) had variable knowledge of SWHSI treatments, and frequently favoured NPWT despite the lack of robust evidence, The pilot, feasibility RCT screened 248 patients for eligibility and subsequently recruited and randomised 40 participants to receive NPWT or Usual Care (no NPWT). Data indicated that it was feasible to complete a full RCT to provide definitive evidence for the effectiveness of NPWT as a treatment for SWHSI. Key elements and recommendations for a larger RCT were identified. Limitations: This research programme was conducted in a single geographical area (Yorkshire and the Humber, UK) and local guidelines and practices may have affected treatment availability and so may not represent UK wide treatment choices. A wide range of wound types were included, however, some wound types may be underrepresented meaning this research may not represent the overall SWHSI population. The lack of RCT data on the relative effects of NPWT in SWHSI resulted in much of the economic modelling being based on observational data. Observational data, even with adjustment, does not negate the potential for unresolved confounding to affect the results. This may reduce confidence in the conclusions drawn and may lead to calls for definitive evidence from an RCT. Conclusions: This research has provided new information regarding the nature, extent, costs, impacts and outcomes of SWHSI, treatment effectiveness and the value and nature of future research; addressing previous uncertainties regarding the problem of SWHSI. Aspects of our research indicate that NPWT is more costly and less effective than standard dressing for the healing of open surgical wounds. However, because this conclusion is based solely on observational data it may be affected by unresolved confounding. Should a future RCT be considered necessary, its design should reflect careful consideration of the findings of this programme of research

Bid from the International Surgical Wound Complications Advisory Panel

The International Surgical Wound Complications Advisory Panel sets out its bid for the WUWHS 2026 Congress to be held in Perth, Western Australia