Automatic disposable stapling devices for wound closure

Surgical wound closure by staples or sutures?: Systematic review

AIM

To compare the effects of sutures and staples for skin closure of surgical wounds.

MATERIAL AND METHODS

We included published and unpublished randomized controlled trials (RCTs) and cluster-randomized trials comparing staples with sutures. Patients were adults (aged 18 years or over) who had undergone any type of surgery. The primary outcomes were risk of overall and severe wound infection. Secondary outcomes included length of hospital stay, readmission rate, adverse events, patient satisfaction with cosmetic results, postoperative pain.

RESULTS

Forty-two very low to low quality RCTs with a total of 11,067 patients were included. Sutures resulted in slightly fewer overall wound infections (4.90%) compared to staples (6.75%) but it is uncertain whether there is a difference between the groups (risk ratio [RR] 1.20, 95% confidence intervals [CI] 0.80-1.79; patients = 9864; studies = 34; I = 70%). The evidence was also insufficient to state a difference in terms of severe wound infection (staples 1.4% vs sutures 1.3%; RR 1.08, 95% CI 0.61-1.89; patients = 3036; studies = 17; I = 0%), grade of satisfaction (RR 0.99, 95% CI 0.91-1.07; patients = 3243; studies = 14; I = 67%) and hospital stay. Staples may increase the risk of adverse events (7.3% for staples vs 3.5% for sutures; RR 2.00, 95% CI 1.44-2.79; patients = 6246; studies = 21; I = 33%), readmission rate (RR 1.28, 95% CI 0.18-9.05; patients = 2466; studies = 5; I = 66%) and postoperative pain (standardized mean difference [SMD] 0.41,95%CI -0.35 to 1.16; I = 88%, patients = 390 patients, studies = 5).

CONCLUSIONS

Due to the lack of high quality evidence, we could not state if sutures are better than staples in terms of wound infection, readmission rate, adverse events, and postoperative pain. With a low quality of evidence, sutures reduce postoperative pain and improve grade of satisfaction with the cosmetic outcome.

A double-blinded randomised controlled trial - do subcuticular non-absorbable skin sutures have a better aesthetic outcome than skin staples in large wound closures?

Introduction: Traditionally, non-absorbable skin sutures (SS) have been utilised in the closure of the skin in large wounds. More recently, however, skin staples (SC) have been introduced with the aim of reducing closure time and infection rates.

Method: A double-blinded randomized controlled trial in all patients undergoing elective open surgeries in a single unit, from May 2007 to May 2010. Data on patient demographics, type of surgery, methods of skin closure, rate of wound infection and cosmetic satisfaction were collected. Patients were then randomly allocated to skin sutures (SS) or skin staples (SC) groups. Patients and investigators were then “blinded” to the arm of trial they were allocated to.

Result: In total, 369 patients were recruited, of which 218 patients completed the study. 134 patients were allocated to the SS group with a median age of 67 (IQR 61, 74). SC group had a total of 84 patients with a median age of 69 (IQR 61, 71). 15% of SS group developed wound infection, compared to 20% in SC group (p=0.202). 61% of the SS group claimed better aesthetic results compared to 46% in SC group (p=0.020).

Conclusion: Our results demonstrated that patients with non-absorbable subcuticular skin closures had lower infection rates, better cosmetic outcome and better patient satisfaction outcome compared with skin staples. We therefore suggest using subcuticular sutures to close the skin in elective abdominal open surgery.

Staple versus suture closure for ankle fracture fixation: Retrospective chart review for safety and outcomes

INTRODUCTION/AIM

Recent comparisons of suture versus metal staple skin closure on the rates of wound complications in orthopaedic surgeries have yielded conflicting results. Several studies have since started to approach this question based on anatomic location, comparing suture versus staple closure in total hip and knee arthroplasty and acetabulum fracture surgery. Ankle fractures are one of the most commonly treated fractures by orthopaedic surgeons with unique challenges to skin closure due to the lack of subcutaneous support. However, to date there are no studies comparing superficial skin closure methods specifically in ankle surgery. The objective of this study was to evaluate the safety of staple versus suture closure for open fixation of acute traumatic ankle fractures.

METHODS

The medical records of patients treated at one institution by a single surgeon with open surgical fixation of an acute traumatic ankle fracture between 2011 and 2017 were retrospectively reviewed. Patients with less than 6 months of follow-up, polytrauma patients, diabetic patients, and patients with more than 3 medical comorbidities were excluded. Skin closure technique was determined by the presence or absence of metallic staples on postoperative imaging. Demographic variables, surgical characteristics, and postoperative outcomes up to one year were compared between patients who received superficial skin closure using staple versus suture techniques. Statistical analysis was performed using chi-squared tests and Fisher's exact tests, with p=0.05 used to denote statistical significance.

RESULTS

This study included 94 patients aged 18 to 75: two groups of 47 patients (Staple group and Suture group) that were demographically similar at baseline. Overweight and obese patients constituted the majority of the sample, 34% and 46% of patients, respectively. Current tobacco use was reported by 45% of patients. Fractures tended to be right-sided (63%), low energy (64%), and closed (98%), and the most common fracture types were bimalleolar (30%), lateral malleolar (24%), and pilon (19%) fractures. Ten patients (10.6%) developed local wound related complications within 4 months postoperatively, including five incidences of wound dehiscence, four superficial wound infections, and one deep infection. Eight patients (8.5%) required revision surgery due to wound related complications. There was no difference in the incidence of surgical site infections (p=0.361), local wound related complications (p=0.316), or revision surgeries (p=0.267) between wound closure techniques. Suture group patients required more staff in the operating room compared with staple group patients (p=0.001).

CONCLUSION

These results suggest that staples are a safe alternative to sutures for superficial skin closure in healthy, non-diabetic patients following open surgical fixation of acute traumatic ankle fractures. However, this retrospective, single-institution study was limited by the low number of available patients relative to the rare outcomes of interest. Larger, prospective studies are needed to validate the accuracy and generalizability of these results.

Wound Closure after Thyroid and Parathyroid Surgery: A Meta-Analysis of Randomized Controlled Trials

AIMS

Wound closure after thyroidectomy and parathyroidectomy is associated with patients' satisfaction, perception of cosmetic appearance, and experience of postoperative pain. Subcutaneous sutures, clips, and tissue adhesive are the three major methods of wound closure. In this study, we conducted a meta-analysis of randomized controlled trials to evaluate the outcomes of these methods.

METHODS

Relevant studies published before December 2017 were identified from PubMed, Embase, Cochrane Library, Scopus, and the ClinicalTrials.gov registry. Individual effect sizes were standardized, and a meta-analysis was conducted to calculate the pooled effect size by using random-effect models. The primary outcome was the cosmetic appearance, which was evaluated 4 weeks, 6 weeks, and 6 months after surgery. The secondary outcomes were patient satisfaction, postoperative pain, and complications.

RESULTS

A total of nine trials with 612 patients were reviewed. No significant difference was observed in patient satisfaction, postoperative pain, and complications among the wound closure methods. However, according to surgeon assessment, the subcutaneous suture method resulted in a significantly more favorable cosmetic appearance than the clip method (mean difference: -1.47, 95% confidence interval: -2.72 to -0.23).

CONCLUSION

In the current study, no differences were found in patient satisfaction and postoperative pain among the subcutaneous suture, clip, and tissue adhesive wound closure methods. However, surgeons provided a more favorable appraisal for the subcutaneous suture method because of the improved cosmetic appearance. The choice of the closure method should be based on surgeon's preference and cost.

Application of Materials as Medical Devices with Localized Drug Delivery Capabilities for Enhanced Wound Repair

The plentiful assortment of natural and synthetic materials can be leveraged to accommodate diverse wound types, as well as different stages of the healing process. An ideal material is envisioned to promote tissue repair with minimal inconvenience for patients. Traditional materials employed in the clinical setting often invoke secondary complications, such as infection, pain, foreign body reaction, and chronic inflammation. This review surveys the repertoire of surgical sutures, wound dressings, surgical glues, orthopedic fixation devices and bone fillers with drug eluting capabilities. It highlights the various techniques developed to effectively incorporate drugs into the selected material or blend of materials for both soft and hard tissue repair. The mechanical and chemical attributes of the resultant materials are also discussed, along with their biological outcomes in vitro and/or in vivo. Perspectives and challenges regarding future research endeavors are also delineated for next-generation wound repair materials.

Comparison of Skin Staples and Standard Sutures for Closing Incisions After Head and Neck Cancer Surgery: A Double-Blind, Randomized and Prospective Study

PURPOSE

To investigate the merits and demerits of stapled skin closure when compared to conventional sutures in head and neck cancer surgery.

MATERIALS AND METHODS

A total of 80 patients (40 patients each in control and study group) were enrolled. The patients underwent closure of incision wounds following head and neck cancer surgical procedures. Skin incisions were closed with sutures using 3-0 silk in control group and with stainless steel staples in study group. Both the groups were compared for speed of closure, cost effectiveness, pain on removal, patient comfort, aesthetic outcome on day of removal, 15 and 30 days after day of removal and complications.

RESULTS

The mean incision length in control group was 54 ± 16.3 cm while in study group was 53.7 ± 15.4 cm which was statistically not significant (P = 0.95). The mean time of closure in control group was 34.2 ± 12 min while in study group was 3.3 ± 1.2 min which was statistically highly significant (P < 0.001). The mean cost of material for skin closure in control group was Rs. 270.0 ± 46.4 and in study group was Rs. 517.5 ± 135.7 which was also statistically highly significant (P < 0.001).

CONCLUSION

It was concluded that skin staples are better alternatives to conventional sutures in head and neck cancer surgery as they offer ten times faster wound closure, cost effectiveness, and similar results to sutures in terms of patient comfort, aesthetic outcome and complication rate.

Randomized controlled trial comparing subcuticular absorbable suture with conventional interrupted suture for wound closure at elective operation of colon cancer

BACKGROUND

Subcuticular closure provides a superior cosmetic result in clean wounds. The aim of this work was to investigate the safety in terms of postoperative infection and cosmetic effectiveness of subcuticular wound closure after elective colon cancer surgery in clean-contaminated wounds.

METHODS

Patients who underwent elective resection of colon cancer were randomized to interrupted subcuticular and interrupted transdermal suture groups. The large bowel was prepared by mechanical washout with polyethylene glycol. All patients received metronidazole and kanamycin orally and flomoxef sodium once parenterally for antimicrobial prophylaxis. The primary end point was the incidence of incisional surgical-site infections within 30 days after operation. We assessed noninferiority of subcuticular suture within a margin of 10%. Analysis was by intent-to-treat. Secondary objectives include comparison of wound closure time, comfort, and cosmesis of the scar and satisfaction of patients. This study was registered with UMIN-CTR, UMIN000003005.

RESULTS

A total of 293 patients were randomized to the two groups. Incisional surgical-site infection rates were 11.0% (90% confidence interval 7.0-16.3%) for both groups. The relative risk of subcuticular suture was 1.00 (0.58-1.73, one-tail P = .57). Interrupted subcuticular suture was noninferior to interrupted transdermal suture (P = .0088). Throughout 6 months after operation, patients expressed a significant preference for the subcuticular suture technique, noting rapid relief from pain, decreased vascularity, and smaller width, although the procedure took twice as long.

CONCLUSION

Subcuticular suture did not increase the incidence of wound complications in elective colon cancer operation. Patients preferred a technique of interrupted subcuticular closure, citing better cosmetic results, and less pain.

Sutures versus staples for skin closure in orthopaedic surgery: meta-analysis

OBJECTIVE

To compare the clinical outcomes of staples versus sutures in wound closure after orthopaedic surgery.

DESIGN

Meta-analysis.

DATA SOURCES

Medline, CINAHL, AMED, Embase, Scopus, and the Cochrane Library databases were searched, in addition to the grey literature, in all languages from 1950 to September 2009. Additional studies were identified from cited references. Selection criteria Two authors independently assessed papers for eligibility. Included studies were randomised and non-randomised controlled trials that compared the use of staples with suture material for wound closure after orthopaedic surgery procedures. All studies were included, and publications were not excluded because of poor methodological quality. Review methods Two authors independently reviewed studies for methodological quality and extracted data from each paper. Final data for analysis were collated through consensus. The primary outcome measure was the assessment of superficial wound infection after wound closure with staples compared with sutures. Relative risk and mean difference with 95% confidence intervals were calculated and pooled with a random effects model. Heterogeneity was assessed with I(2) and chi(2) statistical test.

RESULTS

Six papers, which included 683 wounds, were identified; 332 patients underwent suture closure and 351 staple closure. The risk of developing a superficial wound infection after orthopaedic procedures was over three times greater after staple closure than suture closure (relative risk 3.83, 95% confidence interval 1.38 to 10.68; P=0.01). On subgroup analysis of hip surgery alone, the risk of developing a wound infection was four times greater after staple closure than suture closure (4.79, 1.24 to 18.47; P=0.02). There was no significant difference between sutures and staples in the development of inflammation, discharge, dehiscence, necrosis, and allergic reaction. The included studies had several major methodological limitations, including the recruitment of small, underpowered cohorts, poorly randomising patients, and not blinding assessors to the allocated methods of wound closure. Only one study had acceptable methodological quality.

CONCLUSIONS

After orthopaedic surgery, there is a significantly higher risk of developing a wound infection when the wound is closed with staples rather than sutures. This risk is specifically greater in patients who undergo hip surgery. The use of staples for closing hip or knee surgery wounds after orthopaedic procedures cannot be recommended, though the evidence comes from studies with substantial methodological limitations. Though we advise orthopaedic surgeons to reconsider their use of staples for wound closure, definitive randomised trials are still needed to assess this research question.

Closure of hip wound, clips or subcuticular sutures: does it make a difference?

The purpose of this study was to investigate wound healing and complications following surgery for fracture neck of femur. Seventy-one patients were prospectively divided into two groups, according to the method of skin closure: group A had clips; group B had subcuticular vicryl® sutures. There were 41 patients in group A, and 30 patients in group B. There were 13 males and 58 females with an average age of 84.3 years (range 67-100 years). Thirty-seven patients underwent fixation with a dynamic hip screw, while 34 had undergone either a hemi or total hip arthroplasty. The wounds were inspected at days 2, 5, 7, 10 and 14 days, for discharge, redness and infection. There was a statistically significantly greater amount of wound discharge (P<0.002) and redness (P<0.009) in group A (clips) as compared to group B (vicryl). There were three cases of infection; all in patients where clips had been used for skin closure. We concluded that subcuticular vicryl sutures were significantly better than clips in terms of wound healing as well as cost. Except for some decrease in operative time there does not seem to be any advantage in the use of clips for wound closure.

Comparison of gross and histologic tissue responses of skin incisions closed by use of absorbable subcuticular staples, cutaneous metal staples, and polyglactin 910 suture in pigs

OBJECTIVE

To assess gross and histologic tissue responses of skin incisions closed by use of absorbable subcuticular staples, cutaneous metal staples, and polyglactin 910 suture in pigs.

ANIMALS

8 purpose-bred disease-free pigs.

PROCEDURE

Pigs were randomly allocated to 1 of 4 groups from which tissues were collected after death on postoperative days (PODs) 7, 14, 21, or 42. In each pig, 4 incisions were made; 1 was closed subcuticularly with 3-0 polyglactin 910 suture, 1 was closed with metal staples, and 2 were closed with absorbable subcuticular staples. Incision sites were grossly evaluated every 3 days after closure. At necropsy, incision sites and surrounding tissues were examined histologically; a histopathologic scoring system was used to quantitate healing and tissue response directed against the closure material.

RESULTS

Postoperatively, the metal staples induced a severe inflammatory response, compared with minimal inflammation associated with the suture or absorbable subcuticular staples. Histologic evaluation of incisions on PODs 7, 14, and 21 revealed less severe inflammation associated with absorbable subcuticular staples than that associated with the other materials.

CONCLUSIONS AND CLINICAL RELEVANCE

Results indicated that absorbable subcuticular staples induced a less severe inflammatory response in the early stages of healing in pigs, compared with other commonly used methods of wound closure. Use of absorbable staples potentially combines the benefits of subcuticular closure with the speed and precision of staple placement.

Management of lacerations in the emergency department

The goals of wound management are simple: avoid infection and achieve a functional and aesthetically pleasing scar. This is achieved by reducing tissue contamination, debriding devitalized tissue, and restoring perfusion in poorly perfused wounds, in conjunction with a well-approximated skin closure.

5th Annual David R. Boyd, MD Lecture: Revolutionary advances in wound repair in emergency medicine during the last three decades. A view toward the new millennium

This lecture provides an overview of advances in wound repair devised by our multidisciplinary team of physicians, scientists, and students. Our collective efforts have devised products, drugs, and concepts that are facilitating wound repair without infection and with the least possible scar. Some of the beneficial products and drugs developed or identified by our laboratory include nitrile examination and surgical gloves, magnification loupes, high pressure syringe irrigation, Shur Clens, as well as a wide variety of different wound closure techniques. In addition, our studies of the mechanism of wound injury, soil infection-potentiating fractions, dynamic and static skin tensions, and microflora of the skin have become important predictors of the outcomes of wound repair. During the new millennium, the computerized clinical information system as well as studies of tissue regeneration should dramatically change our approaches to wound repair.

Laceration management

In 1996, almost 11 million lacerations were treated in emergency departments throughout the United States. Although most lacerations heal without sequelae regardless of management, mismanagement may result in wound infections, prolonged convalescence, unsightly and dysfunctional scars, and, rarely, mortality. The goals of wound management are simple: avoid infection and achieve a functional and aesthetically pleasing scar. Recent US Food and Drug Administration approval of tissue adhesives has significantly expanded clinicians' wound closure options and improved patient care. We review the general principles of wound care and expand on the use of tissue adhesives for laceration repair.

Pediatric scalp laceration repair complicated by skin staple migration

Skin staples are ideal for pediatric scalp laceration closure because of their rapidity of placement and economy and ease of use. We report two cases of rotatory staple migration necessitating improvised removal techniques. Clinicians should be alert for this complication, which may result from a combination of staple design, local anatomic factors, superficial placement, and prolonged delay prior to removal.

Prospective, randomized, controlled trial of tissue adhesive (2-octylcyanoacrylate) vs standard wound closure techniques for laceration repair. Stony Brook Octylcyanoacrylate Study Group

OBJECTIVE

To compare a new tissue adhesive, 2-octylcyanoacrylate, with standard wound closure techniques for the repair of traumatic lacerations.

METHODS

A prospective, randomized, controlled clinical trial enrolled consecutive patients > 1 year of age with non-bite, non-crush-induced lacerations who presented < 6 hours after injury. Structured closed-question data sheets were completed at the time of laceration repair and suture removal. Patients were randomly assigned to treatment with either 2-octylcyanoacrylate or standard wound closure. Infection was determined at the time of suture removal. Long-term cosmetic appearance (> 3 months) was assessed by physicians using a previously validated categorical cosmetic scale and by patients using a 100-mm visual analog scale.

RESULTS

There were 63 patients randomized to the octylcyanoacrylate group and 61 patients treated with standard wound closure techniques. The 2 treatment groups were similar with respect to age, gender, race, medical history, and wound characteristics. At the 5-to-10-day follow-up, only 1 wound was infected and only 2 wounds required reclosure due to dehiscence. These 3 patients received treatment with octylcyanoacrylate. At long-term follow-up, the cosmetic appearances were similar according to the patients (octylcyanoacrylate, 83.8 +/- 19.4 mm vs standard techniques, 82.5 +/- 17.6 mm; p = 0.72) and the physicians (optimal cosmetic appearance, 77% vs 80%; p = 0.67).

CONCLUSIONS

Wounds treated with octylcyanoacrylate and standard wound closure techniques have similar cosmetic appearances 3 months later.

Comparison of skin stapling devices and standard sutures for pediatric scalp lacerations: a randomized study of cost and time benefits

OBJECTIVE

To compare the total costs and the physician time requirements for suture and staple repair of pediatric scalp lacerations.

STUDY DESIGN

Eighty-eight children, 13 months to 16 years of age, coming to a children's hospital emergency department with simple scalp lacerations were prospectively randomly selected to receive staple or suture repair. Wound lengths, times required for initial wound care and closure, and equipment use were recorded. Patients returned in 1 week for suture or staple removal and wound reevaluation. The two methods were compared in terms of both time expended and costs of equipment and physician compensation.

RESULTS

Forty-five children underwent staple repair and 43 underwent suture repair. There were no differences in age, sex, wound length, number of sutures or staples per centimeter, or physician experience. Stapling resulted in shorter wound closure times (65 vs 397 seconds; p < 0.0001) and shorter overall times for wound care and closure (395 vs 752 seconds; p < 0.0001). Staple repair was less expensive in terms of equipment ($12.55 vs $17.59; p < 0.0001) and total cost based on equipment and physician time ($23.55 vs $38.51; p < 0.0001). The follow-up rate was 91%, with no cosmetic or infectious complications in either group.

CONCLUSIONS

Stapling is faster and less expensive than suturing in the repair of uncomplicated pediatric scalp lacerations, with no additional complications. Physicians who treat children with scalp lacerations should consider the use of stapling devices.

Absorbable skin graft staples: a clinical trial using Graftac-X

Skin stapling devices are a quick, effective method for securing skin grafts in burns patients. Removal of staples can be painful, often requiring a general anaesthetic. This problem has led to the recent development of absorbable staples which extrude with time. A prospective controlled clinical trial was performed on 20 burns patients comparing absorbable skin tacks with stainless steel staples. An area of at least 50 cm2 was grafted in each patient, half of which was secured with absorbable tacks and half with stainless steel staples. Each patient therefore acted as his/her own control. The presence of infection, haematoma and graft take using a grided cellophane sheet were assessed at one week. Infection and excess scarring at tack sites were assessed at one month. A statistically significant difference was not found between either group. In our hands absorbable skin staples have proven to be a reliable method of securing skin grafts.

Wound care after posterior spinal surgery. Does early bathing affect the rate of wound complications?

STUDY DESIGN

The study was a prospective clinical trial with historic control.

OBJECTIVES

To determine if early bathing after posterior spinal surgery resulted in increased wound problems.

SUMMARY OF BACKGROUND DATA

Little is known about the time needed for wound healing before patients may get the wound wet. Traditional teaching usually calls for the wound to be kept clean and dry for 10-14 days or until shortly after the sutures are removed. Studies have shown wound closure with skin staples to be resistant to external contamination.

METHODS

One hundred consecutive patients undergoing posterior spinal surgery with skin closure using steel skin staples were prospectively allowed to shower and wet the surgical wound 2-5 days after surgery. These results were compared with a historic control of 100 consecutive patients done in the previous year by the same surgeon with a similar patient profile, albeit with fewer patients who underwent revision surgery and instrumentation in the control group. Follow-up evaluation was done by an independent reviewer. Certain high risk patients were excluded from the trial and control groups.

RESULTS

Ninety-five patients in the historic control group were available for follow-up evaluation, and 97 of the experimental (early bathing group) were available. There was one deep infection in the control group and none in the experimental group. There were three superficial wound problems in the control group, and two in the early bathing group. All superficial wound troubles healed without sequelae. Operating time, complexity, and revision rates were slightly higher in the experimental group.

CONCLUSIONS

Prohibition of showering of patients after uncomplicated posterior spinal surgery and wound closure with skin staples may be unnecessary beyond the first few days.

Risk factors for surgical infection

In the last century remarkable advances have been made in surgery, associated with the lowest recorded rates of infection or sepsis. Many surgical practices are time honoured but have little scientific basis to prevent postoperative infection whereas some local and systemic factors are well recognized and can be modified to lower infection risks. Surgical skill is not easily measurable but shorter operations in experienced hands leaving the minimum of tissue damage, haematoma or dead space have the lowest infection rates in general surgery: < 2% in clean and < 10% in contaminated operations. Adequate surgical scrub, appropriate suture materials and antibiotic prophylaxis, perioperative correction of dehydration and poor nutrition are examples of effective therapy which can be conformed to by all surgeons. Other factors, such as the use of wound guards, drains and surgical dressings are less easy to estimate for effectiveness or be sure that they could be changed or left out of surgical ritual.

A prospective randomized trial of absorbable staple fixation of skin grafts for burn wound coverage

A prospective randomized trial of absorbable versus metal skin staples for securing skin grafts to excised burn wounds was performed in 20 patients. The absorbable staples were easy to use and efficacious in securing the skin grafts, except to edematous fatty tissue. Aesthetically, the absorbable staples yielded as good or better results when compared with metal staples resulting from a lack of tissue distortion. A decrease of 61.4 minutes of the most significantly painful portion of the postoperative dressing change (i.e., staple removal) would have been avoided by using absorbable staples. The overall cost of using the absorbable staples for small burns was comparable with metal staples; however, the cost difference was significantly greater for large burns.

Considerations in the selection of surgical gloves for tape wound closure

One of the reasons that tape closure of wounds is rarely used in the emergency department is that it is difficult for the emergency physician wearing powdered, latex gloves to handle skin closure tapes. Because the skin closure tapes adhere aggressively to powdered latex gloves, it is difficult for the emergency physician to separate the tape from his glove and apply the tape to the skin. The advent of a new powder free glove allows the emergency physician to handle the tapes and accomplish tape wound closure.

Cost analysis of stapling versus suturing for skin closure

A randomized, prospective study was performed to test the null hypothesis that there is no difference between the cost of stapling and suturing for skin closure of selected linear lacerations. Appropriate wounds were randomly assigned to be closed by staples or sutures. Wound lengths, skin closure times, and the number of staples or the number and types of sutures used were recorded. Costs for materials and labor were calculated. The average total cost per case was $17.69 (with suture kit) and $7.84 (without suture kit) for the staple Group compared with $21.58 for the suture Group (P = .0001 for each). It is concluded that stapling is less costly than suturing and that the advantage appears to increase as laceration length increases.

Skin and fascia staple closure

Skin stapling is the fastest method of closure for long skin incisions. In addition, clean-contaminated wounds closed by staples have a greater resistance to infections than wounds closed with suture. It is important to realize that staples are a particular modality of suturing live tissues and if used properly they add speed and precision to wound closure. Many skin staplers are available to the veterinary surgeon and most perform satisfactorily. Stapling may be economically feasible when the reduced cost of surgical time and anesthesia is considered.

Emergency physician workload: a time study

STUDY HYPOTHESIS

Physician service time varies with patient service category, length of stay, and intensity of service.

DESIGN

Prospective time study of emergency physician services. Physicians recorded the beginning and ending times of each service episode offered to a patient (whether at the bedside or occurring elsewhere in the department). Each episode was defined as an "interaction," with the total service time offered to a patient being the sum of all interactions for that patient. Length of stay was the time interval from when the patient registered in the emergency department to when the patient was released. Intensity of service was calculated as service time divided by length of stay.

SETTING

University-affiliated community teaching hospital.

TYPE OF PARTICIPANTS

One thousand three hundred forty-seven ED patients were entered into the study for nonselected (514), walk-in (637), observation (52), laceration repair (102), or critical care (42) services. Six of 12 physicians in the group staffing the ED participated in the study. Patient data were entered onto study cards when the service was offered. Patients were entered into the study consecutively except when the physician became too busy to see one patient at a time and accurately enter time data; such interruptions occurred for 18% of the patients.

RESULTS

Physician service time for nonselected service patients (24.2 minutes per patient; 95% CI, 23.1-25.3) was consistent with ACEP's findings for nonselected services offered by emergency physicians (22 minutes per patient). Physician service time did not vary significantly from the standard for laceration repair patients (25.0 minutes per patient; 95% CI, 22.6-27.4) but did vary significantly from the standard for walk-in (9.8 minutes per patient; 95% CI, 9.3-10.3; P < .05), observation (55.6 minutes per patient; 95% CI, 50.7-60.5; P < .05), and critical care patients (31.9 minutes per patient; 95% CI, 26.2-37.6; P < .05). Walk-in and laceration repair patients had a single physician-patient interaction (1.3 per patient and 1.1 per patient, respectively), consistent with a discrete service offered during episodic care. Observation and critical care patients had multiple physician-patient interactions (6.3 per patient and 2.6 per patient, respectively) over an extended period, which is consistent with additional services being offered during their period of observation/holding.

CONCLUSION

Case mix of patient services affects emergency physician workload and should be considered in planning departmental staffing needs.

New advances in automatic disposable rotating cartridge skin staplers

This report describes the design, operation, and mechanical performance of Auto Suture Multifire Premium disposable skin staplers and staples in a biomechanical laboratory investigation and a clinical evaluation. The performance of this reloadable stapler has been compared with that of a new disposable skin stapler with a rotating cartridge, the Proximate RH stapler. The latter exemplifies a disposable skin stapler whose cartridge cannot be reloaded. The Auto Suture Multifire Premium disposable skin stapler has been designed so that its cartridge can be reloaded during a single surgical procedure. The most obvious advantage of this new device is that it substantially reduces the cost of skin stapling during surgery. Another unique benefit of this stapler is that it can accommodate either regular or wide staples, allowing the surgeon to use both size of staples without discarding the stapler. On the basis of this investigation, the Auto Suture Multifire Premium disposable skin stapler is recommended for skin incision and graft closure, since it provides maximal visualization of the wound as well as the staple during its formation. It delivers the staple into the skin or skin graft so that the topspan of the staple is above the skin or wound surface. In addition, the Auto Suture Multifire Premium disposable skin stapler has a prepositioning (precocking mechanism) that is controlled by the surgeon with minimal force, a mechanism which allows the stapler to hold its staple securely, even when its pointed legs extend beyond the delivery end of the stapler. The force required to form its staples is so low that the surgeon can staple repetitively without fatigue.(ABSTRACT TRUNCATED AT 250 WORDS)

The use of taped skin closure in orthopaedic wounds

The cosmetic result, cost effectiveness, and complication rate of three different types of skin closure: staples, tapes, and interrupted nylon were compared. In 68 wounds, skin closure was randomized to staples, tapes, or interrupted 3/0 nylon sutures. All wounds were closed subcutaneously with interrupted undyed 2/0 dexon. For 3 months, 59 wounds were followed and assessed by an independent observer at 1 and 3 months postoperatively in the outpatient department. In three different skin closures, the cosmetic result was superior for tapes because the wound line itself was finer and there were no dot scars. Tapes were the most cost-effective because they are the cheapest although they were not as quick to apply as staples. There was no difference in complication rate. Tapes also afforded the greatest patient comfort.

Closure of laparotomy wounds: skin staples versus sutures

To investigate the routine use of a skin stapling device for the closure of midline abdominal wounds, 48 patients were randomized to receive skin staples or subcuticular polydioxanone sutures. The mean (range) time for closure with staples was 8.0 (3.4-14.8) s cm-1 while subcuticular closure took 12.7 (9.6-28.0) s cm-1. The mean time saved per patient with skin staples was 77 s. Wound pain and requirements for analgesia were significantly lower in the sutured group. The mean cost per patient was 1.41 pounds for subcuticular closure and 7.72 pounds for stapling; the latter also incurred an additional cost of 6.27 pounds for staple removal. No clear benefit derives from the use of staples in the closure of abdominal wounds.

Comparative study of skin closure in hip surgery

A prospective, randomized controlled study was performed to compare skin staplers for closure of skin following hip surgery. Patients were randomized to have their skin closed with either continuous subcuticular non-absorbable polypropylene 'prolene' suture (33 patients) or metal skin staples (Autosuture 'Premium' or Davis and Geck 'Oppose'; 33 patients). All patients received prophylactic cephalosporin (Cephalothin) in pre- and postoperative antibiotic therapy. The wounds were examined daily and the presence of discharge, wound dehiscence and infection were noted. Any discharge at 7 days was swabbed for microbiological examination. The final cosmetic appearance was assessed at 8-12 weeks postoperatively. Scar length and width were measured and the presence of cross-hatching noted. Wound dehiscence occurred in 1 patient (closed with staples). Wound infection developed in 2 patients at a rate of 3% (1 patient from each group). At final review (8-12 weeks postop), the scar produced by subcuticular prolene was narrower than that produced by the skin stapler (P less than 0.05). There was no significant difference in scar width between a wound which had staples removed at 10 days post operation and one where the staples were removed at 14 days. Staple insertion sites were more obvious in scars that had had the staples removed at the later time (P less than 0.05).

Evaluation of skin stapling for wound closure in the emergency department

Automatic skin staplers have been commonly used for surgical wound closure for many years. The efficiency and ease of placement of skin staplers make them an attractive alternative to suture repair of selected lacerations in the emergency department. Emergency physicians, however, have been reluctant to use staplers in the ED. We evaluated skin staples in 76 patients presenting with 87 lacerations to the scalp, trunk, or extremities, excluding hands and feet. Patients returned to the ED in two and seven to ten day for wound check and staple removal. Skin stapling was assessed for efficiency, cosmetic results, complications, and cost-effectiveness. Only one significant complication was noted in our study group - a dehiscence of a scalp laceration secondary to hematoma collection. There was also a minor dehiscence of a superficial laceration of the leg due to inadequate primary closure, which did not result in any cosmetic deformity. No infectious complications, delayed wound healing, or cosmetic problems were seen. Skin stapling was easier and quicker than suture repair at a lower overall cost in most circumstances. Our study shows skin stapling to be an efficient and cost-effective alternative method to suture wound closure for selected lacerations in patients presenting to the ED, without compromising wound healing or cosmetic results.

Staples versus sutures in the closure of scalp wounds: a prospective, double-blind, randomized trial

Over a 6-month period, patients attending the Accident and Emergency Department of the Mater Infirmorum Hospital with scalp wounds were randomly allocated to one of two groups for closure of their wounds with either nylon sutures or metal staples. Each group contained 100 patients. Patients were reviewed at 5 days (95 per cent) after the removal of sutures or staples and again at 3 weeks (61 per cent). The two groups were similar for age, sex, aetiology and wound characteristics. There was no difference in morbidity or rate of wound infection but stapling was significantly faster and less painful. The use of staples carries no risk of accidental needle-stick injury and should therefore be safer than suturing for the user.

The arcuate skin staple: its influence on pain of staple penetration and removal

The purpose of this study was to measure the degree of pain elicited by either staple implantation and by removal in human subjects. Included in the study were conventional rectangular staples and the new arcuate staples. The pain associated with staple implantation was significantly greater than that associated with staple removal. The configuration of the staple did not influence the magnitude of pain associated with either staple implantation or staple removal.

The use of staples in dermatologic surgery

Staples are an excellent form of wound closure for certain types of cutaneous surgery, namely, scalp reductions, application of split-thickness grafts, axillary vault resections, and truncal excisions. Various staplers currently in use, their advantages and disadvantages, are reviewed in the context of these aforementioned procedures.