Clinimetric properties and clinical utility in rehabilitation of postsurgical scar rating scales: a systematic review

Aesthetic Evaluation of Facial Scars in Patients Undergoing Surgery for Basal Cell Carcinoma: A Prospective Longitudinal Pilot Study and Validation of POSAS 2.0 in the Lithuanian Language

Facial basal cell carcinoma (BCC) surgery enhances the quality of life (QoL) but leaves patients with inferior QoL, presumably caused by scarring, emphasizing the need to understand post-surgery aesthetic satisfaction. This study aimed to validate the Lithuanian version of the Patient and Observer Scar Assessment Scale (POSAS) 2.0 and utilise it to identify scar evaluation differences and correlations among POSAS scores and specific aesthetic facial regions, age, gender, surgery types, and short- and long-term QoL. Employing a prospective longitudinal design, 100 patients with facial scars after surgical BCC removal were enrolled. The validation phase confirmed the translated POSAS 2.0 psychometric properties, while the pilot phase used statistical analyses to compare scores among demographic and clinical groups and evaluate correlations between scar assessment and QoL. The findings indicate that the translated Lithuanian version of POSAS 2.0 exhibits good psychometric properties, revealing insights into aesthetic satisfaction with post-surgical facial scars and their impact on QoL. The Lithuanian version of the POSAS 2.0 was established as a valid instrument for measuring post-surgical linear scars. QoL with scar assessment statistically significantly correlates, 6 months after surgery, with worse scores, particularly notable among women, younger patients, and those with tumours in the cheek region.

Effects of soft tissue mobilisation on subacute adherent linear scars: a single-group intervention study

OBJECTIVE

Scar adherence due to a pathological healing process can cause physical and psychological disturbance. Soft tissue mobilisation (STM) techniques are widely used to treat and prevent scar adherence, but little is known on their effects. We aimed to analyse the effect of STM in patients with subacute post-surgical scar adhesions affecting the extremities.

METHOD

A single-group quasi-experimental study was conducted on consecutive patients undergoing post-surgery limb rehabilitation. Patients with a baseline Adhesion Severity (AS) index of <0.5 at the worst scar point, as measured by the Adheremeter, were eligible. All patients who completed a minimum of five manual treatment sessions were included. The primary outcome was the AS index and the secondary outcome was the Italian version of the Patient and Observer Scar Assessment Scales (POSAS-I).

RESULTS

A cohort of 19 patients underwent an average of eight STM sessions over a period of one month. The AS index value increased from a median of 0.12 at baseline (interquartile range (IQR): 0.05-0.25) to 0.41 post-treatment (IQR: 0.26-0.63; median change: 0.24; IQR: 0.16-0.40; p<0.001). A large effect size was observed for both AS and Observer Scar Assessment Scale (OSAS-I) (Cohen r=0.6), with a large probability of superiority (PS) (87% and 86%, respectively). A moderate effect was observed for the Patient Scar Assessment Scale (PSAS-I) (Cohen=0.4; PS=71%). Pre-post treatment changes exceeded the minimal detectable changes for the AS and OSAS-I in 68% of subjects, and for PSAS-I in 21% of subjects.

CONCLUSION

STM manual techniques may produce a large effect on the mobility of adherent subacute post-surgical scars.

From qualitative data to a measurement instrument: A clarification and elaboration of choices made in the development of the Patient Scale of the Patient and Observer Scar Assessment Scale (POSAS) 3.0

PURPOSE

To clarify and elaborate on the choices that were made in the development of the Patient Scale of the Patient and Observer Scar Assessment Scale 3.0 (POSAS 3.0), based upon the rich information obtained from patients during focus groups and pilot tests.

METHODS

The discussions described in this paper are a reflection of the focus group study and pilot tests that were conducted in order to develop the Patient Scale of the POSAS3.0. The focus groups took place in the Netherlands and Australia and included 45 participants. Pilot tests were performed with 15 participants in Australia, the Netherlands, and the United Kingdom.

RESULTS

We discussed the selection, wording and merging of 17 included items. Additionally, the reason for exclusion of 23 characteristics are given.

CONCLUSION

Based upon the unique and rich material of patient input obtained, two versions of the Patient Scale of the POSAS3.0 were developed: the Generic version, and the Linear scar version. The discussions and decisions taken during the development are informative for a good understanding of the POSAS 3.0 and are indispensable as a background for future translations and cross-cultural adaptations.

InCISE: Instrument for Comprehensive Incisional and Surgical Evaluation

OBJECTIVE

The evaluation of healing after head and neck surgery is currently qualitative and non-standardized, limiting the quality of surgical healing assessments in clinical and research settings. We sought to develop an objective, standardized wound assessment score, and hypothesize that a reliable instrument can be developed to evaluate head and neck surgical wounds.

METHODS

A prospective cohort study was conducted in a tertiary-care, academic head and neck surgery practice. Patients undergoing head and neck surgery were enrolled. A digital photograph protocol was developed for evaluating healing surgical wounds. A panel of experts developed and refined a wound healing score and established reliability, reproducibility, internal consistency, and validity of the score.

RESULTS

InCISE: Instrument for comprehensive incisional and surgical evaluation was created. The utility of our wound healing score was assessed using classical test theory. We performed the major steps of establishing reliability in head and neck surgeons: (1) internal consistency (Cronbach's α = 0.81), (2) inter-observer reliability (intra-class correlation = 0.76), and (3) intra-rater reliability (intra-class correlation = 0.87), and content validity (through focus groups). Our composite measure was found to have strong internal consistency, inter-rater reliability, and intra-rater reliability. Preliminary work suggests criterion validity via associations with physical health related quality of life (SF-12).

CONCLUSION

A wound healing score for head and neck surgery, InCISE, has been developed and is reliable, reproducible, and consistent. Although content validity is present and criterion validity is suggested, work continues to establish validity in this instrument to allow for expanded clinical and research use.

LEVEL OF EVIDENCE

NA Laryngoscope, 133:2166-2173, 2023.

Carbon dioxide laser treatment of burn-related scarring: Results of the ELIPSE (Early Laser Intervention Promotes Scar Evolution) prospective randomized controlled trial

AIM

To investigate the impact of ablative fractional carbon dioxide laser (AFCO2L) on patient-reported outcomes measures, subjective scar appearance, dermal architecture, and gene transcription in early burn scars.

METHODS

Fifteen adult patients with a burn-related scar were recruited. Inclusion criteria were two non-contiguous scar areas of 1% total body surface area, similar baseline Vancouver scar scale (VSS) score and 3months since the time of injury. All participants acted as their own control. Scars were randomized to treatment or control. Treatment scars received three AFCO2L treatments at 6-week intervals. Outcome measures were recorded at baseline, 3, 6, and 12-months post-treatment. Measures included blinded VSS, Patient Observer Scar Assessment Scale (POSAS), Brisbane Burn Scar Impact Profile (BBSIP), blinded scar photo assessment, histological tissue analysis, and RNA sequencing analysis.

RESULTS

No significant difference was found in VSS, scar erythema, or pigmentation. Patient POSAS improved in scar thickness and texture following AFCO2L. All elements of BBSIP improved in control and laser groups. AFCO2L-treated scars were scored better than control scars by blinded raters. RNA sequencing illustrated that AFCO2L induced sustained changes in fibroblast gene expression.

CONCLUSIONS

AFCO2L treated scars had significantly altered scar thickness and texture 6 months post-laser and were rated better than controls on blinded photo analysis after 3 treatments. RNASeq results suggest laser treatment alters the transcriptome of treated fibroblasts for at least 3 months after treatment. Expansion of this research to study in more depth fibroblast changes in response to laser, as well as assessing the impact on daily activity and quality of life, will be beneficial.

The Importance of Psychometric and Physical Scales for the Evaluation of the Consequences of Scars-A Literature Review

BACKGROUND

Scars affect patients after trauma, burns, or surgical procedures and can generate both physical and psychosocial changes. The aesthetic damage represents the modification of a person's physical appearance, in its bodily integrity, causing numerous sufferings and determining social or economic consequences. The aim of this research is to evaluate the advantages and disadvantages offered by the available psychosocial and physical scar scales in assessing the physical, aesthetic, psychosocial, and juridical consequences of scars. This will aid to inform medical examiners about the most valued existing scales to allow them to select the most appropriate instrument to manage their patient.

METHODS

A broad search of relevant scientific studies on the psychosocial determinants of post-traumatic and surgical scars was conducted by using the following international database tools: PsycINFO, MedLine Social Science Index, Scopus, Web of Science, published from 1960 until 2022.

RESULTS

We analyzed 63 scientific studies to assess the advantages and limits of several psychometric and physical scar evaluation scales.

CONCLUSIONS

The researchers analyzed in this review highlight the advantages and limitation of existing instruments, evidencing the demand for future scar evaluation instruments and a scar-assessing algorithm that takes into account the physical, aesthetic, psychosocial, and legal consequences of scars.

Development of the Patient Scale of the Patient and Observer Scar Assessment Scale (POSAS) 3.0: a qualitative study

PURPOSE

The Patient and Observer Scar Assessment Scale (POSAS) is widely used for measurements of scar quality. This encompasses visual, tactile and sensory characteristics of the scar. The Patient Scale of previous POSAS versions was lacking input from patients. Therefore, the aim of this study was to develop the POSAS3.0, Patient Scale with involvement of adults patients with all scar types, complying with the highest clinimetric standards.

METHODS

From February 2018 to April 2019, a series of six focus group interviews were performed in the Netherlands and Australia to identify scar quality characteristics that adults with scars consider to be important. All focus groups were transcribed, anonymized and analysed using a thematic analysis. Relevant characteristics were formulated into items, resulting in a Dutch and English version of the Patient Scale. These drafts were pilot tested in Australia, the Netherlands and the United Kingdom, and refined accordingly.

RESULTS

A total of 21 relevant scar quality characteristics were identified during the focus groups. Two distinct versions of the POSAS3.0, Patient Scale were developed. The Generic version contains 16 items and can be used for all scar types, except linear scars. The Linear Scar version of the Patient Scale contains the same 16 items, with an extra item referring to the widening of scar margins. All included items are rated on a verbal rating scale with five response options.

CONCLUSION

Two versions of the POSAS3.0 Patient Scale were developed. Further field tests are being performed to establish the measurement properties and scoring algorithm of the scales.

Two-stage skin grafting using a basic fibroblast growth factor-impregnated artificial dermis

For traditional artificial dermises, a waiting period of approximately three weeks is required after the first implantation before they are adequately vascularized. The objective of this retrospective case series was to investigate whether full-thickness skin defects, requiring surgical reconstruction, could be successfully treated by implantation of a basic fibroblast growth factor (bFGF)-impregnated artificial dermis and secondary skin grafting with a shorter waiting period. Between January 2019 and January 2021, 19 skin defects in 14 patients (7 male and 7 female) were treated with two-stage skin grafting using bFGF-impregnated collagen-gelatin sponge (CGS). All of them were included in this case series, and the waiting period for skin grafting, success rate of skin grafting, infection during the waiting period, and scar quality 6–12 months postoperatively were retrospectively investigated. As a result, all skin grafting surgeries were successfully performed with a waiting period of 13.3 ± 4.3 days. Infection during the waiting period was observed in three lesions (15.8%); however, all infections were controllable. Postoperative scar quality was acceptable (Vancouver Scar Scale score range, 1–8). In conclusion, compared to traditional artificial dermises, bFGF-impregnated CGSs have the potential to shorten the waiting period without decreasing the success rate of skin grafting. Further studies are required to confirm this finding.

•

We previously developed a novel artificial dermis which is capable of sustained release of bFGF.

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Skin defects were successfully treated by two-stage skin grafting using bFGF-impregnated CGS.

•

The use of bFGF-impregnated CGS allowed for a short waiting period for secondary skin grafting.

Is massage an effective intervention in the management of post-operative scarring? A scoping review

BACKGROUND

Scar massage is a widely used treatment modality in hand therapy. This intervention is thoroughly discussed in the literature relating to burns rehabilitation, however, the evidence for its use in treating linear scars following surgery is limited.

PURPOSE OF STUDY

To collate the empirical literature on scar massage for the treatment of postsurgical cutaneous scars.

STUDY DESIGN

Scoping review.

METHODS

Medline, EMBASE, CINAHL, AMED, Scopus, ProQuest Dissertations & Theses Global, and the Joanna Briggs Institute were searched from inception to December 2020. Two researchers used a data extraction tool to record key demographic, intervention and outcome data, and to apply the Oxford Levels of Evidence for each study.

RESULTS

Twenty-five studies met the inclusion criteria, reporting on a combined sample of 1515 participants. Only two papers addressed hand or wrist scars (92 participants). While all studies reported favorable outcomes for scar massage, there were 45 different outcome measures used and a propensity towards non-standardized assessment. Intervention protocols varied from a single session to three treatments daily for 6 months. The results from 13 studies were confounded by the implementation of additional rehabilitation interventions.

CONCLUSIONS

The overall findings suggest that while there may be benefits to scar massage in reducing pain, increasing movement and improving scar characteristics; there is a lack of consistent research methods, intervention protocols and outcome measures. This scoping review highlights the heterogenous nature of research into scar massage following surgery and supports the need for further research to substantiate its use in the clinical setting.

Efficacy and safety of botulinum toxin type A for postoperative scar prevention and wound healing improvement: A systematic review and meta-analysis

BACKGROUND

Botulinum toxin type A (BTXA) has shown underlying effects for wound healing improvement. New small clinical trials keep emerging every year and updated evidence-based information is warranted. This study aimed to evaluate the efficacy and safety of BTXA for preventing scarring.

METHODS

Four databases were searched to recruit randomized clinical trials (RCTs) which compared the surgical wounds treated with BTXA vs. those treated with placebo or blank control. The outcomes were primarily quantified by measures including the Vancouver Scar Scale (VSS), Visual Analog Scale (VAS), Stony Brook Scar Evaluation Scales (SBSES), modified SBSES (mSBSES), and scar width. Patients' satisfaction and adverse events were also reported.

RESULTS

In total, 16 RCTs involving 671 cases (510 patients) were included. The outcome showed significant superiority of BTXA in VSS (mean difference [MD] = -1.32, 95% confidence interval [CI]: -2.00 to -0.65, p = 0.0001), VAS (MD = 1.29, 95% CI: 1.05-1.52, p < 0.00001), SBSES or mSBSES (MD = -0.18, 95% CI: -0.27 to -0.10, p < 0.0001), scar width (MD = -0.18, 95% CI: -0.27 to -0.10, p < 0.0001), and patients' satisfaction (risk ratio [RR] = 1.25, 95% CI: 1.06-1.49, p = 0.01). No significant difference of adverse events incidence was observed (RR = 1.46 95% CI: 0.64-3.33, p = 0.36).

CONCLUSIONS

Botulinum toxin type A is effective and safe for postoperative scar prevention and wound healing improvement, especially for facial wounds of Asians. Further studies should manage to standardize the treatment algorithm, while mSBSES is recommended for scar assessment.

Development and Pilot Analysis of the Bruise Visibility Scale

The accuracy of assessing and documenting injuries is crucial to facilitate ongoing clinical care and forensic referrals for victims of violence. The purpose of this cross-sectional, pilot study was to evaluate the inter-rater reliability and criterion validity of a newly developed Bruise Visibility Scale (BVS). Methods: The instrument was administered to a diverse sample (n = 30) with existing bruises. Bruises were assessed under fluorescent lighting typical of an examination room by three raters who were randomly selected from a pool of eight experienced clinical nurses. Colorimetry values of the bruise and surrounding tissue were obtained using a spectrophotometer. Results: The BVS demonstrated good single (ICC = 0.71, 95% CI = 0.54 – 0.84) and average agreement (ICC = 0.88, 95% CI = 0.78 – 0.94) between raters. A significant, positive moderate correlation was found between mean BVS scores and overall color difference between the bruise and surrounding skin (Pearson’s r = 0.614, p < 0.001). Conclusion: With further research, the BVS has the potential to be a reliable and valid tool for documenting the degree of clarity in bruise appearance.

Clinical Outcomes Following the Early Application of Multimodal Scar Programs for Facial Incisional Wounds

BACKGROUND

Even though scars are major issues for patients who undergo facial lacerations, programs for their prevention and early management are not well established. The purpose of this study was to evaluate the clinical outcomes of prophylactic scar assessments and early scar interventions in patients with lacerations.

PATIENTS AND METHODS

A total of 116 patients underwent suture line and scar prevention treatment in the emergency room from 2014 to 2015. In the retrospective study, 46 patients who met all the criteria were included in the study. They were assigned to one of the following two scar prevention programs: the standard scar program for prevention, which included taping, silicone sheets, and ointments, and the multimodality scar program for treatment, which included triamcinolone, botulinum toxins, or CO₂ fractional lasers. The patterns of early scar program were investigated for the standard scar prevention program and the multimodality scar management program, and we evaluated the scar assessment scores of the patients at 3 and 6 months.

RESULTS

Scar scores for the patients who received multimodality scar management showed statistically significant improvements in Patient Scar Assessment (PSA) scales, Stony Brook Scar Evaluation Scales (SBSES), Vancouver Scar Scale (VSS) scores, and Visual Analog Scar (VAS) scales (the p values were 0.008, 0.007, 0.017, and 0.01, respectively).

CONCLUSION

The multimodality scar program is more effective for scar prevention than the standard scar program.

LEVEL OF EVIDENCE IV

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Clinimetric properties of a translated and culturally adapted Norwegian version of the Patient and Observer Scar Assessment Scale for use in clinical practice and research

PURPOSE

To translate and culturally adapt the Patient and Observer Scar Assessment Scale, POSAS, to Norwegian and explore its test-retest, intra- and inter-tester reliability.

METHODS

POSAS was translated into Norwegian following international guidelines in collaboration with an international translation bureau. Twenty-six adults and 24 children were recruited from a burns outpatient clinic. Three observer-categories: doctor, nurse and physiotherapist, assessed the patients' scars and scored the Observer scale for estimating inter-tester reliability. Photos of the scars were taken and used to score the Observer scale a second time for examining intra-tester reliability. The patients or parents/next of kin rated their scar on the Patient scale at the clinic and after two days at home for examining test-retest reliability. Intraclass correlation (ICC) and Kappa were used for statistical analysis.

RESULTS

A Norwegian version of POSAS (POSAS-NV) was developed. Inter-tester ICC of the Observer parameters varied between 0.203 and 0.728, and for the total sum score, ICC=0.528 (0.280-0.708). Intra-tester ICC of the Observer scale ranged between 0.575 and 0.858. The Patient scale demonstrated high test-retest reliability.

CONCLUSIONS

Intra-tester reliability of the Observer scale and test-retest reliability of the Patient scale of POSAS-NV were found satisfactory, but not inter-tester reliability of the Observer scale.

Ultrasound imaging of a scar on the knee: Sonopalpation for fascia and subcutaneous tissues

Persistent scar pain associated with healed surgical incisions after a trauma is a common and potentially debilitating type of fascial pain. At present, there is no universally effective treatment for persistent surgical or post-trauma scar pain. Herein we describe the successful objective diagnosis of debilitating scar pain by Ultrasound (US) imaging. The sonopalpation of the fasciae and subcutaneous tissues seems to be relevant to diagnose the real cause of the pain and why not to monitor the treatment.

Early laser intervention to reduce scar formation in wound healing by primary intention: A systematic review

BACKGROUND

Hypertrophic scars frequently follow primary closure of surgical wounds. Laser application at or shortly after suture may be associated with a reduction in scar formation, although the respective study results vary.

AIM

The objective was to evaluate the efficacy of early laser applied within the first six months after surgery to reduce scar formation compared to no treatment.

METHODS

We searched the databases MEDLINE and CENTRAL on 14 January 2019 and included randomized controlled trials (RCTs). Primary outcome was the Vancouver Scar Scale (VSS). Measure of treatment effect was the mean difference from baseline.

RESULTS

Seventeen relevant RCTs randomized 430 scars (413 assessed) and compared laser versus no treatment. Fourteen studies applied a split-scar and three applied a simple parallel design. Three studies with a split-scar design favored the laser group on VSS, and one study had indifferent findings. Considerable heterogeneity I² = 86% did not justify a meta-analysis. The remaining 13 studies did not report appropriate data.

CONCLUSION

On the basis of the currently available evidence, we are uncertain whether early laser can reduce scar formation, and more high-quality research is needed for a definitive conclusion.

Cross-cultural adaptation and psychometric validation of the Patient Scar Assessment Questionnaire to the Spanish language in head and neck surgery

External appearance is the main aesthetic outcome in patients who undergo surgical procedures. Scars located in exposed areas, such as the neck and face, are important for patients. There are at least eight instruments that are used to evaluate postoperative scars, but few fulfil standard methodological conditions. The Patient Scar Assessment Questionnaire (PSAQ) was designed and validated using psychometric methodology. However, this scale has not been translated or validated in the Spanish language. The aim of this study was to undergo a cross-cultural adaptation and psychometric validation of the PSAQ scale to the Spanish language in patients who underwent head and neck surgery. We followed The Professional Society for Health Economics and Outcomes Research (ISPOR) guidelines for the translation and validation of health-related scales. Forward and back translations were made by independent translators. We included adult patients who underwent thyroidectomy, parathyroidectomy, parotidectomy, and neck dissection. For the psychometric validation, we used a principal axis exploratory factor analysis with oblimin rotation. A reliability test involving Cronbachs alpha and the item-total correlation was performed and for the convergent/concurrent validity, we selected the Spanish version of the Vancouver Scar Scale. A total of 180 patients were recruited. Factor analysis showed a five-factor solution. Cronbachs alpha for the subscales was >0.7. The comparison between the PSAQ appearance subscale and the VSS demonstrated a high correlation (rho = - 0.89). In a sample of 62 patients, the test-retest evaluation showed high correlation (0.74-0.99). Our study supports the Spanish version of the PSAQ as a valid, reliable, and reproducible tool to assess the perception and impact of neck scars in Spanish-speaking patients who undergo head and neck surgery.

Effectiveness and Safety of Botulinum Toxin Type A Injection for Scar Prevention: A Systematic Review and Meta-analysis

BACKGROUND

The role of active scar prevention in postoperative scar management is important. Botulinum toxin type A (BTXA) has been shown to improve postoperative scars in the past decades. The aim of this systematic review and meta-analysis was to evaluate the effectiveness and safety of BTXA injection for scar prevention.

METHODS

The authors searched the databases of Medicine, Embase, the Cochrane Library, Web of Science, and CINAHL from inception through November 2018 for randomized controlled trials (RCTs) reporting the use of BTXA in scar prevention. The outcomes were the visual analogue scale (VAS) score, Vancouver Scar Scale score, scar width, patient satisfaction and adverse events.

RESULTS

A total of nine RCTs were identified in this systematic review and meta-analysis. The VAS score was significantly higher in the BTXA group than in the control group (weighted mean difference (WMD) = 1.32, 95% confidence interval (CI) = 1.06-1.58, P < 0.00001). The Vancouver Scar Scale score was significantly lower in the BTXA group (WMD = - 1.25, 95% CI = - 2.23 to - 0.26, P = 0.01). The scar width was also significantly smaller in the BTXA group (WMD = - 0.18, 95% CI = - 0.24 to - 0.12, P < 0.00001). There was a significant difference in terms of patient satisfaction between the BTXA group and the control group (relative risk (RR) = 1.38, 95% CI = 1.09-1.74, P = 0.007). Only two studies reported complications, and other studies reported no complications during the follow-up period.

CONCLUSIONS

This systematic review and meta-analysis demonstrates that BTXA injection can reduce scar width in wounds and improve the overall appearance of postoperative scars and suggests that BTXA may be a safety therapy for scar prevention.

LEVEL OF EVIDENCE II

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Systematic Review on the Content of Outcome Measurement Instruments on Scar Quality

Supplemental Digital Content is available in the text.

Measurements of scar quality are essential to evaluate the effectiveness of scar treatments and to monitor scars. A large number of scar scales and measurement devices have been developed, which makes instrument selection challenging. The aim of this study was to provide an overview of the content (ie, included items) of all outcome measurement instruments that measure scar quality in different types of scars (burn, surgical, keloid, and necrotizing fasciitis), and the frequency at which the instruments and included items are used.

Translation and cultural adaptation of an Arabic version of the patient scar assessment scale for thyroidectomy patients

Objectives:

To translate and validate an Arabic version of the patient scar assessment scale (PSAS). The cosmetic appearance of a thyroidectomy scar can critically influence a patient’s self-esteem. Moreover, scar evaluation tools are necessary for an evidence-based approach to scar management.

Methods:

This quantitative, observational, cross-sectional study was conducted by administering an Arabic-translated version of the PSAS. The translation process included a forward translation into Arabic by 3 fluently bilingual otolaryngologists, a back-translation into English, and a comparison with the original items. The questionnaires were distributed to patients who underwent thyroidectomies. We included patients who underwent surgery at least 2 months previously.

Results:

A total of 50 patients were included in this research. The internal consistency was 0.89, with a 95% confidence interval (CI) of 0.88-0.90. The score distributions showed high correlations for all items. The Arabic-translated PSAS showed good test-retest reliability, and the Pearson correlation coefficient between the test and retest administrations was 0.84 (p<0.001). With a possible range of 6-60 points, the standard error of the mean was 5.14, and the minimal detectable change was 14.2.

Conclusion:

This Arabic version of the PSAS was reliable for use in Arabic-speaking communities. It will allow for comparisons between the results of investigations conducted in different countries, which aids in the exchange of information within the international scientific community.

Mid- to Long-term Outcomes After Split-thickness Skin Graft vs. Skin Extension by Multiple Incisions

BACKGROUND/AIM

Skin extension by multiple incisions (SEMI) may be superior to split-thickness skin graft (STSG) for closure of large soft tissue defects.

MATERIALS AND METHODS

Twenty-six patients who had undergone STSG were compared to 29 patients who had undergone SEMI on the extremities. Patient and Observer Scar Assessment Scale (POSAS), Dermatology Life Quality Index, Wound QoL (Quality of Life) and Short Form Health Survey 36 were used. Elasticity, thickness and skin sensation were compared between the treated and contralateral extremity. Range of motion in adjacent joints was measured. Complication rates were compared.

RESULTS

A total of 55 patients with a mean follow-up of 5.5 years (range=2-9 years) were examined. Patients with STSG had significantly worse scores in POSAS. The scar was thinner, less elastic and did not provide intact sensibility. Other scores, ROM and complication rates did not differ significantly.

CONCLUSION

SEMI was superior to STSG regarding patient satisfaction and scar quality.

Transabdominal ultrasound: Can it be used to detect and quantify adhesions/reported pain, following Caesarean section?

BACKGROUND

Caesarean section is common in the UK with post-procedural adhesions causing life-long clinical symptoms and impacting future pregnancies. This study's aim was to explore associations between these surgical adhesions, via transabdominal ultrasound findings, and perceived symptoms.

METHOD

Females demonstrating 1-3 transverse, lower-segment Caesareans were included. Visceral slide transabdominal ultrasound elicited positive adhesions (<1 cm movement) and negative adhesions (>1 cm movement). Scar tissue quality was assessed by the Patient and Observer Scar Assessment Scale (POSAS) and Numerical rating scales (NRS) described pain symptoms. The relationship between adhesions was explored using Fisher's exact test and multiple regression analysis.

RESULTS

Twenty-two subjects (mean-age 35) were recruited; twenty participants (91%) had undergone 1 Caesarean, one each of the remainder had undergone 2 and 3 Caesareans respectively. Increased Visceral slide (>1 cm) was seen as predictive of increased scar pain (R² = 0.76 (95% CI 0.12-0.28), P < 0.001).

CONCLUSION

Caesarean adhesion scans showed significant associations with pain symptomology. Comprehensive adhesion assessment needs to be developed to improve long term outcomes of adhesions. Transabdominal Ultrasound can be considered a useful, quick and non-deleterious alternative diagnostic tool to Laparoscopy, therefore preventing further adhesion formation.

Evaluation of inguinal vascular surgical scars treated with closed incisional negative pressure wound therapy using three-dimensional digital imaging-A randomized controlled trial on bilateral incisions

PURPOSE OF THE INVESTIGATION

Scar formation is an important, permanent surrogate marker for wound healing. The main aim of this randomized trial was to evaluate the effects of incisional negative pressure wound therapy (iNPWT) on scar formation in uncomplicated wound healing with 3-dimensional (3D) digital imaging.

BASIC PROCEDURES

Patients undergoing bilateral inguinal incisions after vascular surgery were randomized to receive iNPWT and standard dressing on separate sides. The incisional scars were documented at a median time of 808 days (range 394-1194) after surgery with 3D photography, which were objectively evaluated by two plastic surgeons using the Stony Brook scar evaluation scale (SBSES) and a 10-point graded numeric ranking scale (NRS10). Subjective evaluation was performed with the patient observer scar assessment scale (POSAS). Patients with surgical site infection or other wound complications were excluded to minimize bias. The p-values were calculated using McNemar's and Wilcoxon signed-rank test for paired nominal and paired continuous data, respectively.

MAIN FINDINGS

Among 33 patients, 32 patients had undergone endovascular aortic repair (EVAR) and 31 patients had transverse inguinal incisions. Objective and subjective scar evaluation showed no difference between iNPWT and standard dressing. In objective scorings, 18.8 and 21.9% received the highest possible SBSES total score in the iNPWT and standard dressing groups, while 43.8 and 37.5% received the highest possible NRS10 score, respectively. The inter-rater reliability between the two assessors for SBSES total score and NRS10 showed an intra-class correlation (ICC) of 0.78 and 0.68 for NPWT and 0.70 and 0.77 for traditional dressing, respectively.

PRINCIPAL CONCLUSION

The present randomized trial showed that iNPWT and standard dressings on closed transverse inguinal incisions after EVAR resulted in equal subtle scar formation. Objective scar evaluation with 3D images showed good inter-rater agreement.

Optimizing Postsurgical Scars: A Systematic Review on Best Practices in Preventative Scar Management

BACKGROUND

Scar management is critical for every plastic surgeon's practice and, ultimately, the patient's satisfaction with his or her aesthetic result. Despite the critical nature of this component of routine postoperative care, there has yet to be a comprehensive analysis of the available literature over the past decade to assess the best algorithmic approach to scar care. To this end, a systematic review of best practices in preventative scar management was conducted to elucidate the highest level of evidence available on this subject to date.

METHODS

A computerized MEDLINE search was performed for clinical studies addressing scar management. The resulting publications were screened randomized clinical trials that met the authors' specified inclusion/exclusion criteria.

RESULTS

This systematic review was performed in May of 2016. The initial search for the Medical Subject Headings term "cicatrix" and modifiers "therapy, radiotherapy, surgery, drug therapy, prevention, and control" yielded 13,101 initial articles. Applying the authors' inclusion/exclusion criteria resulted in 12 relevant articles. All included articles are randomized, controlled, clinical trials.

CONCLUSIONS

Optimal scar care requires taking into account factors such as incisional tension, anatomical location, and Fitzpatrick skin type. The authors present a streamlined algorithm for scar prophylaxis based on contemporary level I and II evidence to guide clinical practice.

Cross-cultural adaptation, reproducibility and validation of the Italian version of the Patient and Observer Scar Assessment Scale (POSAS)

The Patient and Observer Scar Assessment Scale (POSAS) is one of the most robust instruments to assess scar quality, but there is no Italian version, and no other competing instruments are available in Italian. The aim of this study was to translate and validate an Italian version of POSAS (POSAS-I). POSASv2.0 was culturally adapted in accordance with international standards. The psychometric assessment included acceptability/feasibility, internal consistency, reproducibility, construct validity and sensitivity to change. Cultural equivalence of POSAS-I with the English version was confirmed. The validation study included 102 subjects with surgical scars. Both subscales demonstrated acceptable internal consistency (Cronbach's α = 0·72-0·80). Reproducibility of the OSAS-I (ICCs = 0·93-0·94; SEM = 1·8 points; MDC₉₅ = 5·1 points) was superior to that of PSAS-I (ICC = 0·65; SEM = 5·7 points; MDC₉₅ = 15·7 points). OSAS-I showed moderate to good correlations with the Vancouver Scar Scale (VSS), Global Rating of Change Scale (GRCS) and PSAS-I. Sensitivity to change was large for PSAS-I (effect size = 1·08; standardised response mean = 0·96) and moderate to large for OSAS-I (ES = 0·69; SRM = 0·92). This study confirmed that POSAS-I can be used to assess patients with surgical scars in the Italian population. OSAS-I is useful for clinical and research purposes, while PSAS-I should be better used to capture patients' own opinions and symptoms in clinical settings.

A 1-Year Follow-Up of Post-operative Scars After the Use of a 1210-nm Laser-Assisted Skin Healing (LASH) Technology: A Randomized Controlled Trial

BACKGROUND

Laser therapies are used prophylactically for excessive scar formation. The Laser-Assisted Skin Healing treatment induces a controlled heat stress that promotes tissue regeneration. This comparative trial is the first to evaluate the performance of a new automated 1210-nm laser system, compatible with all Fitzpatrick scale phototypes.

METHODS

Forty women undergoing bilateral breast reduction were enrolled in this double-blinded randomized controlled trial. The horizontal sutured incision of one breast was treated with the portable 1210-nm laser while in the operating theatre. The other breast was used as the study control. Objective measurements, subjective clinical assessments and safety evaluation were carried out over 1 year by both clinicians and patients.

RESULTS

Six weeks following surgery, better overall appearance and modified OSAS scores were reported for the laser-treated scars when compared to the control group (p = 0.024 and p = 0.079). This supports an early effect of the laser treatment during the inflammatory stage of the healing process. After a post-treatment period of 6 months, there continued to be a strong tendency in favour of the laser treatment based on the subjective scores and corroborated by the objective improvement of the treated scar volume (p = 0.038). At 1 year, the laser-treated scars continued to improve compared to the control ones in terms of volume (p = 0.004), surface (p = 0.017) and roughness (p = 0.002), and these comparatively better results were strengthened with the blind expression of patients' preference for their laser-treated scar (p = 0.025).

CONCLUSIONS

This new 1210-nm laser treatment, used as a single session performed immediately after surgery, provides significant objective and subjective improvements in scar appearance. These data can be useful when preparing patients to undergo their surgical procedure.

LEVEL OF EVIDENCE I

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

A Simple Mathematical Model for Wound Closure Evaluation

The incidence of ulcers associated to type 2 diabetes mellitus (T2DM) increases every year. We introduce and explore a new mathematical algorithm to evaluate wound-healing in foot ulcers associated to T2DM. Fifteen patients (nine women and six men), mean age of 70 ± 16 years were included. The evolution of their wounds followed-up for a period of 18-45 days. According to the Wagner grading system the ulcers were grade I (5 patients), grade II (9 patients), and grade III (1 patient). Clinically, the type of the ulcers was neuroischemic (12 patients) and neuropathic (3 patients). A new parameter is introduced, the "continuous linear healing rate" Dc that was more accurate with higher values and requires less quantifications than usual formulas to make a wound-healing projection.