The effectiveness of ambulatory continuous popliteal sciatic nerve blockade on patient-reported overall benefit of analgesia in patients undergoing foot or ankle surgery (CAREFREE trial); a randomized, open label, non-inferiority trial

STUDY OBJECTIVE

Management of pain after foot and ankle surgery remains a concern for patients and healthcare professionals. This study determined the effectiveness of ambulatory continuous popliteal sciatic nerve blockade, compared to standard of care, on overall benefit of analgesia score (OBAS) in patients undergoing foot or ankle surgery. We hypothesized that usage of ambulatory continuous popliteal sciatic nerve blockade is non-inferior to standard of care.

DESIGN

Single center, randomized, non-inferiority trial.

SETTING

Tertiary hospital in the Netherlands.

PATIENTS

Patients were enrolled if ≥18 years and scheduled for elective inpatient foot or ankle surgery.

INTERVENTION

Patients were randomized to ambulatory continuous popliteal sciatic nerve blockade or standard of care.

MEASUREMENTS

The primary outcome was the difference in OBAS, which includes pain, side effects of analgesics, and patient satisfaction, measured daily from the first to the third day after surgery. A non-inferiority margin of 2 was set as the upper limit for the 90% confidence interval of the difference in OBAS score. Mixed-effects modeling was employed to analyze differences in OBAS scores over time. Secondary outcome was the difference in opioid consumption.

MAIN RESULTS

Patients were randomized to standard of care (n = 22), or ambulatory continuous popliteal sciatic nerve blockade (n = 22). Analyzing the first three postoperative days, the OBAS was significantly lower over time in the ambulatory continuous popliteal sciatic nerve blockade group compared to standard of care, demonstrating non-inferiority (-1.9 points, 90% CI -3.1 to -0.7). During the first five postoperative days, patients with ambulatory continuous popliteal sciatic nerve blockade consumed significantly fewer opioids over time compared to standard of care (-8.7 oral morphine milligram equivalents; 95% CI -16.1 to -1.4).

CONCLUSIONS

Ambulatory continuous popliteal sciatic nerve blockade is non-inferior to standard of care with single shot popliteal sciatic nerve blockade on patient-reported overall benefit of analgesia.

Delayed diagnosed injuries in trauma patients after initial trauma assessment with a total-body computed tomography scan

INTRODUCTION

Even when using the Advanced Trauma Life Support (ATLS) guidelines and other diagnostic protocols for the initial assessment of trauma patients, not all injuries will be diagnosed in this early stage of care. The aim of this study was to quantify how many, and assess which type of injuries were diagnosed with delay during the initial assessment of trauma patients including a total-body computed tomography (TBCT) scan in a Level 1 Trauma Center in the Netherlands.

METHODS

We conducted a retrospective cohort study of 697 trauma patients who were assessed in the trauma bay of the Amsterdam University Medical Center (AUMC), using a TBCT. A delayed diagnosed injury was defined as an injury sustained during the initial trauma and not discovered nor suspected upon admission to the Intensive Care Unit (ICU) or surgical ward following the initial assessment, diagnostic studies, or during immediate surgery. A clinically significant delayed diagnosis of injury was defined as an injury requiring follow-up or further medical treatment. We aimed to identify variables associated with delayed diagnosed injuries.

RESULTS

In total, 697 trauma patients with a median age of 46 years (IQR 30-61) and a median Injury Severity Score (ISS) of 16 (IQR 9-25) were included. Delayed diagnosed injuries were found in 97 patients (13.9 %), of whom 79 injuries were clinically significant (81.4 %). Forty-eight of the delayed diagnosed injuries (49.5 %) were within the TBCT field. Ten delayed diagnosed injuries had an Abbreviated Injury Scale (AIS) of ≥3. Most injuries were diagnosed before or during the tertiary survey (60.8 %). The median time of delay was 34.5 h (IQR 17.5-157.3). Variables associated with delayed diagnosed injuries were primary ICU admission (OR 1.8, p = 0.014), an ISS ≥ 16 (OR 1.6, p = 0.042), and prolonged hospitalization (40+ days) (OR 8.5, p < 0.001).

CONCLUSION

With the inclusion of the TBCT during the primary assessment of trauma patients, delayed diagnosed injuries still occurs in a significant number of patients (13.9 %). Factors associated with delayed diagnosed injuries were direct admission to ICU and an ISS ≥ 16.

Measuring External Rotation of the Fibula and Fibular Length in Bilateral Computed Tomography Scans: How Reliable Is This Method?

OBJECTIVES

During ankle fracture surgery, goals include accurate reduction and fixation of the fibula regarding rotation and fibular length. Bilateral postoperative computed tomography (CT) can be performed to assess fibular rotation using the talar dome angle, and fibular length. The aim of this study was to compare side-to-side differences of the fibular rotation and fibular length using bilateral CT scans of uninjured ankles.

METHODS

DESIGN

Retrospective.

SETTING

Single center, Level I Academic Trauma Center.

PATIENT SELECTION CRITERIA

Patients with bilateral CT scans of uninjured ankles.

OUTCOME MEASURES AND COMPARISONS

External rotation using the Nault talar dome method and fibular length using the coronal method of Prior et al. The average, difference, and ratio (injured side/healthy side) and interobserver variability were calculated.

RESULTS

There were 83 patients included (166 ankles, mean age 47 years, 77.1% male). A random set of 66 ankles (33 CT scans) were used to measure interobserver variability. The mean degrees of external rotation ranged from 6.6 to 7.7, mean difference ranged from 1.4 to 3.4 degrees, mean ratio ranged from 1.1 to 1.5, and interobserver variability ranged from 0.27 to 0.65. For fibular length, the mean ranged from 24.6 to 25.8 mm, mean difference in fibular length ranged from 0.5 to 2.1 mm, mean ratio ranged from 1.0 to 1.1 mm, and interobserver variability ranged from 0.45 to 0.73.

CONCLUSIONS

Using bilateral ankle CT scans, mean differences in fibular rotation using the Nault talar dome method were 1.4-3.4 degrees. The distal fibular length had a mean difference between both sides of 0.5-2.1 mm. Although the intraclass correlation's were low, the interleg differences between patients were small, making them useful for clinical practice.

LEVEL OF EVIDENCE

Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.

IDENTIFICATION OF POTENTIALLY MODIFIABLE FACTORS TO IMPROVE RECOGNITION AND OUTCOME OF NECROTIZING SOFT-TISSUE INFECTIONS

ABSTRACT

Background : Necrotizing soft-tissue infections (NSTIs) present a surgical emergency of increasing incidence, which is often misdiagnosed and associated with substantial mortality and morbidity. A retrospective multicenter (11 hospitals) cohort study was initiated to identify the early predictors of misdiagnosis, mortality, and morbidity (skin defect size and amputation). Methods : Patients of all ages who presented with symptoms and were admitted for acute treatment of NSTIs between January 2013 and December 2017 were included. Generalized estimating equation analysis was used to identify early predictors (available before or during the first debridement surgery), with a significance level of P < 0.05. Results : The median age of the cohort (N = 216) was 59.5 (interquartile range = 23.6) years, of which 138 patients (63.9%) were male. Necrotizing soft-tissue infections most frequently originated in the legs (31.0%) and anogenital area (30.5%). More than half of the patients (n = 114, 54.3%) were initially misdiagnosed. Thirty-day mortality was 22.9%. Amputation of an extremity was performed in 26 patients (12.5%). Misdiagnosis was more likely in patients with a higher Charlson Comorbidity Index (β = 0.20, P = 0.001), and less likely when symptoms started in the anogenital area (β = -1.20, P = 0.003). Besides the established risk factors for mortality (septic shock and age), misdiagnosis was identified as an independent predictor of 30-day mortality (β = 1.03, P = 0.01). The strongest predictors of the final skin defect size were septic shock (β = 2.88, P < 0.001) and a skin-sparing approach to debridement (β = -1.79, P = 0.002). Conclusion : Recognition of the disease is essential for the survival of patients affected by NSTI, as is adequate treatment of septic shock. The application of a skin-sparing approach to surgical debridement may decrease morbidity.

Adjunctive hyperbaric oxygen therapy in the management of severe lower limb soft tissue injuries: a systematic review

PURPOSE

Traumatic crush injuries of the lower limb often accompany severe complications. The incorporation of hyperbaric oxygen therapy to standard trauma care may have the potential to diminish injury-related complications and improve outcome in such cases. This systematic review aims to evaluate the effectiveness of hyperbaric oxygen therapy in the management of severe lower limb soft tissue injuries.

METHODS

The electronic databases Medline, Embase and Cochrane Library were searched to identify studies involving patients with crush-associated sever lower limb soft tissue injuries who received hyperbaric oxygen therapy in conjunction with standard trauma care. Relevant data on type of injury, hyperbaric oxygen therapy protocol and outcome related to wound healing were extracted.

RESULTS

In total seven studies met the inclusion criteria, involving 229 patients. The studies included two randomized clinical trials, one retrospective cohort study, three case series and one case report. The randomized placebo-controlled clinical trial showed a significant increase in wound healing and decrease in the need for additional surgical interventions in the patient group receiving hyperbaric oxygen therapy when compared to those undergoing sham therapy. The randomized non-placebo-controlled clinical trial revealed that early hyperbaric oxygen therapy reduces tissue necrosis and the likelihood of long-term complications. The retrospective cohort study indicated that hyperbaric oxygen therapy effectively reduces infection rates and the need for additional surgical interventions. The case series and case report presented beneficial results with regard to wound healing when hyperbaric oxygen therapy was added to the treatment regimen.

CONCLUSION

Hyperbaric oxygen therapy is generally considered a safe therapeutic intervention and seems to have a beneficial effect on wound healing in severe lower limb soft tissue injuries when implemented as an addition to standard trauma care.

Non-compressible truncal and junctional hemorrhage: A retrospective analysis quantifying potential indications for advanced bleeding control in Dutch trauma centers

BACKGROUND

Truncal and junctional hemorrhage is the leading cause of potentially preventable deaths in trauma patients. To reduce this mortality, the application of advanced bleeding control techniques, such as resuscitative endovascular balloon occlusion of the aorta (REBOA), junctional tourniquets, Foley catheters, or hemostatic agents should be optimized. This study aimed to identify trauma patients with non-compressible truncal and junctional hemorrhage (NCTJH) who might benefit from advanced bleeding control techniques during initial trauma care. We hypothesized that there is a substantial cohort of Dutch trauma patients that can possibly benefit from advanced bleeding control techniques.

METHODS

Adult trauma patients with an Abbreviated Injury Scale ≥3 in the torso, neck, axilla, or groin region, who were presented between January 1st, 2014 and December 31st, 2018 to two Dutch level-1 trauma centers, were identified from the Dutch Trauma Registry. Potential indications for advanced bleeding control in patients with NCTJH were assessed by an expert panel of three trauma surgeons based on injury characteristics, vital signs, response to resuscitation, and received treatment.

RESULTS

In total, 1719 patients were identified of whom 249 (14.5 %) suffered from NCTJH. In 153 patients (60.6 %), hemorrhagic shock could have been mitigated or prevented with advanced bleeding control techniques. This group was younger and more heavily injured: median age of 40 versus 48 years and median ISS 33 versus 22 as compared to the entire cohort. The mortality rate in these patients was 31.8 %. On average, each of the included level-1 trauma centers treated an NCTJH patient every 24 days in whom a form of advanced bleeding control could have been beneficial.

CONCLUSIONS

More than half of included Dutch trauma patients with NCTJH may benefit from in-hospital application of advanced bleeding control techniques, such as REBOA, during initial trauma care. Widespread implementation of these techniques in the Dutch trauma system may contribute to reduction of mortality and morbidity from non-compressible truncal and junctional hemorrhage.

Pelvic Ring Fractures in Older Adult Patients-Assessing Physician Practice Variation among (Orthopedic) Trauma Surgeons

PURPOSE

Pelvic fractures in older adults are a major public health problem and socioeconomic burden. The standard of care has changed over the past years, and there is limited consensus on which patients benefit from surgical fixation. There is currently no nationwide treatment protocol to guide the decision-making process. Therefore, the aim of this survey was to provide more insight into if, when, and why patients with a fragility fracture of the pelvis (FFPs) would be considered for additional imaging and surgical fixation by treating physicians.

METHODS

An online clinical vignette-based survey of hypothetical scenarios was sent out to all orthopedic and trauma surgeons in the Netherlands. The questionnaire comprised multiple-choice questions and radiographic images. Differences between subgroups were calculated using the X2 test or the Fisher exact test.

RESULTS

169 surgeons responded to the survey, with varying levels of experience and working in different types of hospitals. In a patient with a simple pubic ramus fracture and ASA 2 or ASA 4, 32% and 18% of the respondents would always advise a CT scan for further analysis. In the same patients, 11% and 31% of the respondents would not advise a CT scan, respectively. When presented with three cases of increasing severity of co-morbidity (ASA) and/or increasing age and/or different clinical presentation of an FFP type 3c on a CT scan, an increasing number of respondents would not consider surgical fixation. There was significant variation in practice patterns between the respondents who do not work in a hospital performing pelvic and acetabular (P&A) fracture surgery and those who do work in a P&A referral hospital. Most respondents (77%) refer patients 1-5 times a year to an expert center for surgical fixation.

CONCLUSION

There is currently a wide variety of clinical practices regarding the imaging and management of FFPs, which seems to be influenced by the type of hospital the patients are presented to. A regional or national evidence-based treatment protocol should be implemented to ensure a more uniform approach.

Implant Choice and Outcomes of the Sinus Tarsi Approach for Displaced Intra-articular Calcaneal Fractures

BACKGROUND

Operative fixation of displaced intra-articular calcaneal fractures is considered the gold standard, for which multiple fixation methods are available. This study compares the (functional) outcome of screw fixation (SF), plate fixation (PF), and anatomical plate fixation (APF) via the sinus tarsi approach (STA).

METHODS

A total of 239 patients (265 fractured calcanei) who received surgical treatment of a displaced intra-articular calcaneal fracture via STA between 2011 and 2022 were included.

RESULTS

Böhler angle (BA) measured immediately postoperatively (BA post-OR) and the decrease in BA at 1 year (∆BA) differed significantly in favor of PF/APF compared with SF (BA post-OR: SF vs PF P = .010 and SF vs APF P = .001; ∆BA: SF vs PF P = .032 and SF vs APF P = .042). Implant removal surgery was performed significantly less in the APF group as compared to the SF/PF groups (APF vs SF/PF; 9.9% vs 22.9%/23.7%, P = .015). Surgical site infections and secondary arthrodesis of the subtalar joint occurred equally in the 3 groups. Furthermore, the mean American Orthopaedic Foot & Ankle Society ankle-hindfoot scale, Foot Function Index score, and EuroQOL-5D-index / visual analog scale score, did not differ notably between SF, PF, and APF.

CONCLUSION

The results show that both PF and APF are favored over SF because of an improved correction of BA measured directly postoperatively, a lower secondary loss of BA and, for APF, a lower implant removal rate. There was no difference in the rate of surgical site infections, need for secondary arthrodesis, nor functional outcome scores between different implants using the STA.

LEVEL OF EVIDENCE

Level III, retrospective cohort study.

Characteristics of fatal penetrating injury; data from a retrospective cohort study in three urban regions in the Netherlands

INTRODUCTION

Penetrating injury (PI) is a relatively rare mechanism of trauma in the Netherlands. Nevertheless, injuries can be severe with high morbidity and mortality rates. The aim of this study is to assess fatalities due to PI and evaluate the demographic parameters, mechanism of injury and the resulting injury patterns of this group of patients in three Dutch regions.

METHODS

Patients suffering fatal PI (stab- and gunshot injuries), in the period between July 1st 2013 and July 1st 2019, in the region of Amsterdam, Utrecht and The Hague were included. Data were collected from the electronic registration system (Formatus) of the regional departments of Forensic Medicine.

RESULTS

During the study period 283 patients died as the result of PI. The mean age was 44 years (SD 16.9), 83% was male and psychiatric history was reported in 22%. Over 60% of the injuries were due to assault and 35% was self-inflicted. Almost half of the incidents took place at home (47%). Injuries were most frequently to the head (24%) and chest (16%). Mortality was due to exsanguination (chest 27%, multiple body region's 17%, neck 9% and extremities 8%) and traumatic brain injury (21%). Up to 40% of the patients received medical treatment, surgical intervention was performed in 25%. The injuries to the extremities suggest a (potentially) preventable death rate of over 8%. Over 70% of the total population died at the scene.

CONCLUSION

Fatal PI most often involves the relatively young, male, and psychiatric patient. Self-inflicted fatal PI accounted for 35%, addressing the importance of suicide prevention programs. Identification of preventable deaths needs more awareness to reduce the number of fatal PI.

The use of routine laboratory testing in acute trauma care: A retrospective analysis

BACKGROUND

In more than 60 countries worldwide, laboratory testing plays a challenging and expensive role in trauma resus-citation. In 1995, the literature already suggested that routine laboratory testing may not be useful for most trauma patients. Our study hypothesized that still the need for some laboratory tests perhaps should be reconsidered. Therefore, the aim of this study was to create more insight in the distribution between normal and abnormal parameters for routine laboratory testing in trauma patient management.

METHODS

This retrospective analysis was performed at Amsterdam UMC, location AMC, an academic level 1 trauma center. Data concerning age, gender, American Society of Anesthesiologists (ASA) physical state classification system (ASA), Injury Severity Scores, Glasgow Coma Scales, mechanism of injury, presence of high-energy trauma, and type of injury (blunt or penetrating) were obtained. Laboratory parameters included comprehensive hematology, coagulation, arterial blood gas, kidney, and liver blood panels. Analytical focus was paid to the patient's vital status, the indication for an emergency intervention, and the risk of in-hospital mortality.

RESULTS

A total of 1287 patients were included in the study. Patients with unstable vital signs or who required emergency inter-vention were most often dealing with abnormalities in pO2, glucose, D-dimer, creatinine, and alcohol values. Mean corpuscular volume (MCV), international normalized ratio (INR), fibrinogen, and amylase were obtained in more than 80% of the patients, but in specific patient groups only abnormal in less than 9%.

CONCLUSION

Trauma patients suffer mainly from abnormal values of D-dimer, pO2, glucose, creatinine, and alcohol. By contrast, MCV, INR, amylase, fibrinogen, and thrombocytes are regularly obtained as well, but only abnormal in a small amount of trauma patients. These findings suggest reconsiderations and more accuracy in the performance of laboratory testing, especially for trauma patients with stable vital signs.

Long-Term Follow-up of Functional and Radiographic Outcome After Revision Surgery for Fibula Malunion

Background. Ankle fractures are some of the most common injuries seen in the emergency department. Malunited ankle fractures are uncommon. Patients with malunion frequently present with multiple complaints. Radiographs often show abnormalities in anatomical alignment. Aim. To evaluate the anatomical alignment on radiographic imaging in patients with malunited ankle fractures. Secondary aims were to evaluate patient satisfaction after reconstruction and to investigate the relationships between radiological alignment and functional outcome. Methods. All consecutive patients (n = 25) treated for a fibula malunion between January 1, 2002, and September 1, 2017, were included. The primary outcome was anatomical alignment of the ankle mortise. The talocrural angle (TCA), talar tilt (TT), and medial clear space (MCS) were used to investigate to what extent revision surgery had improved alignment. The patient-related outcome measure consisted of the Olerud and Molander Ankle Score (OMAS). To assess quality of life (QoL) the EQ-5D-5L was used. Results. The median TCA was 78.4° before revision and 79.25° after revision; P = .297. The median TT was 2.95° before revision and 0.70° after; P < .001. The MCS before revision was 5.2 mm and 3.17 mm after; P < .000). The OMAS had a median of 67.5 points. Analysis of the QoL questionnaires yielded a score of 0.84 points. Conclusion. Anatomical alignment improves significantly after revision surgery of malunited ankles. Measurements of the TCA appeared less useful in determining the anatomical alignment. In our series, 60% of patients reported good to excellent results. The QoL scores of our patient were comparable to those in the healthy population in the Netherlands.Levels of Evidence: Level IV: Case series.

Preventable death in trauma: A systematic review on definition and classification

PURPOSE

Trauma-related preventable death (TRPD) has been used to assess the management and quality of trauma care worldwide. However, due to differences in terminology and application, the definition of TRPD lacks validity. The aim of this systematic review is to present an overview of current literature and establish a designated definition of TRPD to improve the assessment of quality of trauma care.

METHODS

A search was conducted in PubMed, Embase, the Cochrane Library and the Web of Science Core Collection. Including studies regarding TRPD, published between January 1, 1990, and April 6, 2021. Studies were assessed on the use of a definition of TRPD, injury severity scoring tool and panel review.

RESULTS

In total, 3,614 articles were identified, 68 were selected for analysis. The definition of TRPD was divided in four categories: I. Clinical definition based on panel review or expert opinion (TRPD, trauma-related potentially preventable death, trauma-related non-preventable death), II. An algorithm (injury severity score (ISS), trauma and injury severity score (TRISS), probability of survival (Ps)), III. Clinical definition completed with an algorithm, IV. Other. Almost 85% of the articles used a clinical definition in some extend; solely clinical up to an additional algorithm. A total of 27 studies used injury severity scoring tools of which the ISS and TRISS were the most frequently reported algorithms. Over 77% of the panels included trauma surgeons, 90% included other specialist; 61% emergency medicine physicians, 46% forensic pathologists and 43% nurses.

CONCLUSION

The definition of TRPD is not unambiguous in literature and should be based on a clinical definition completed with a trauma prediction algorithm such as the TRISS. TRPD panels should include a trauma surgeon, anesthesiologist, emergency physician, neurologist, and forensic pathologist.

Determining the Correlation Between Lateral Radiograph Morphology and the Outcome Following Surgically Treated Intra-Articular Calcaneal Fractures

Purpose. It is currently still common practice to obtain conventional radiographs in the follow-up of surgically treated displaced intra-articular calcaneal fractures at regular intervals. There is, however, insufficient evidence that these radiographs can be used to predict functional outcome. The aim of the current study was to evaluate the correlation between the most commonly used angles on lateral radiographs and disease-specific patient-reported outcome measures (PROMs). Methods. Two available databases, containing a total of 233 patients, were used in this study. Eleven angles on the lateral images of the preoperative and at 1-year follow-up radiographs were measured. The 6 most commonly used angles were also measured immediately postoperatively. These 6 most commonly used angles were correlated with PROMs (American Orthopaedic Foot and Ankle Society hindfoot score, Foot Function Index) by a Spearman's rho analysis. After a Bonferroni correction was applied, a P value of <.0042 was considered to be statistically significant. Results. After exclusion of bilateral fractures, primary arthrodesis, open fractures, wound infections, other wound complications, nonavailable radiographs, and nonresponders, 86 patients remained. No significant correlations were found between the measured angles on the preoperative and at 1-year follow-up radiographs and the PROMs. Conclusion. No apparent correlation between lateral radiograph morphology and outcome was detected. Therefore, long-term follow-up radiographs after confirmed healing may be restricted to patients with persistent complaints on indication.Levels of Evidence: Prognostic, Level IV: Retrospective.

Intraoperative Effect of 2D vs 3D Fluoroscopy on Quality of Reduction and Patient-Related Outcome in Calcaneal Fracture Surgery

BACKGROUND

Three-dimensional (3D) fluoroscopy is thought to be advantageous in the open reduction and internal fixation (ORIF) of calcaneal fractures. The goal of this multicenter randomized controlled trial was to investigate the clinical effect of additional intraoperative 3D fluoroscopy on postoperative quality of reduction and fixation and patient-reported outcome as compared to conventional 2-dimensional (2D) fluoroscopy in patients with intra-articular fractures of the calcaneus.

METHODS

Patients were randomized to 3D or conventional 2D fluoroscopy during operative treatment of calcaneal fractures. Primary outcome was the difference in quality of fracture reduction and implant position on postoperative computed tomography (CT). Secondary endpoints included intraoperative corrections (prior to wound closure), complications, and revision surgery (after wound closure). Function and patient-reported outcome were evaluated after surgery and included range of motion, Foot and Ankle Outcome Score (FAOS), American Orthopaedic Foot & Ankle Society (AOFAS) score, Short-Form 36 (SF-36) questionnaires, and Kellgren-Lawrence posttraumatic osteoarthritis classification. A total of 102 calcaneal fractures were included in the study in 100 patients. Fifty fractures were randomized to the 3D group and 52 to the 2D group.

RESULTS

There was a statistically significant difference in duration of surgery between the groups (2D 125 min vs 3D 147 min; P < .001). After 3D fluoroscopy, a total of 57 intraoperative corrections were performed in 28 patients (56%). The postoperative CT scan revealed an indication for additional revision of reduction or implant position in 69% of the 3D group vs 60% in the 2D fluoroscopy group. At 2 years, there was no difference in number of revision surgery, complications, FAOS, AOFAS score, SF-36 score, or posttraumatic osteoarthritis.

CONCLUSION

The use of intraoperative 3D fluoroscopy in the treatment of intra-articular calcaneal fractures prolongs the operative procedures without improving the quality of reduction and fixation. There was no benefit of intraoperative 3D fluoroscopy with regard to postoperative complications, quality of life, functional outcome, or posttraumatic osteoarthritis.Level of Evidence: Level I, prospective randomized controlled study.

Lateral Process Fracture of the Talus: A Case Series and Review of the Literature

Fracture of the lateral process of the talus (LPFT) is a frequently overlooked injury that can lead to severe complaints if not treated adequately. The aim of this study was to evaluate treatment and long-term outcomes of LPFT through a review of the literature. Furthermore, we propose a modified classification based on severity and intra- or extra-articular location of LPFT. Patients diagnosed with LPFT and treated at a Level 1 trauma center between 2001 and 2018 were included. Fracture and treatment characteristics were recorded in combination with functional outcome and quality of life after a mean follow-up of 5.5 (range 0.8 to 17.2) years. A comprehensive literature search was performed to identify all case series regarding patients with LPFT; 36 patients were included. According to our modified classification, 1 patient had type 1A (2.8%), 6 patients had type 1B (16.7%), 10 patients had type 2 (27.8%), 11 patients had type 3 (30.6%), 6 patients had type 4A (16.7%), and 2 patients had type 4B (5.6%). Twenty-eight patients underwent operative fixation (78%). The median American Orthopaedic Foot and Ankle Society Hindfoot Score was 75 (range 12 to 100). The median Foot Function Index was 2 (range 0 to 9). The median score for the EuroQol-5D was 0.8 (range -0.5 to 1), and the median score for health status component was 75 (range 30 to 98). There is some room for conservative treatment of LPFT; however, we strongly believe that this should be considered only for nondisplaced, small-fragment, and extra-articular fractures. Surgical treatment leads to an overall good (long-term) outcome.

Selective non-operative management for penetrating abdominal injury in a Dutch trauma centre

INTRODUCTION

Selective non-operative management (SNOM) for penetrating abdominal injury (PAI) is accepted in trauma centres in South Africa and the US. Owing to the low incidence of gunshot wounds (GSWs) in Western Europe, few are inclined to practise SNOM for such injuries although it is considered for stab wounds (SWs). This study evaluated the outcome of patients admitted to a Dutch level 1 trauma centre with PAI.

METHODS

A retrospective study was undertaken of all PAI patients treated over 15 years. In order to prevent bias, patients admitted six months prior to and six months following implementation of a treatment algorithm were excluded. Data concerning type of injury, injury severity score and treatment were compared.

RESULTS

A total of 393 patients were included in the study: 278 (71%) with SWs and 115 (29%) with GSWs. Of the 178 SW patients in the SNOM group, 111 were treated before and 59 after introduction of the protocol. The SNOM success rates were 90% and 88% respectively (p=0.794). There were 43 patients with GSWs in the SNOM cohort. Of these, 32 were treated before and 11 after implementation of the algorithm, with respective success rates of 94% and 100% (p=0.304).The protocol did not bring about any significant change in the rate of non-therapeutic laparotomies for SWs or GSWs. However, the rate of admission for observation for SWs increased from 83% to 100% (p<0.001). There was a decrease in ultrasonography for SWs (from 84% to 32%, p<0.001) as well as for GSWs (from 87% to 43%, p<0.001). X-ray was also used less for GSWs after the protocol was introduced (44% vs 11%, p=0.001).

CONCLUSIONS

SNOM for PAI resulting from either SWs or GSWs can be safely practised in Western European trauma centres. Results are comparable with those in trauma centres that treat high volumes of PAI cases.

Functional Outcome and Quality of Life After Nonoperative Treatment of Posterior Process Fractures of the Talus

BACKGROUND

Fractures of the posterior process of the talus are frequently overlooked, possibly leading to nonunion, arthritis, and chronic pain. Given the rare occurrence, previous case series have been small and without functional outcome scores. Therefore, we aimed to provide evidence on outcomes after nonoperative and operative management of posterior process fractures of the talus.

METHODS

All patients treated at a level 1 trauma center between 2012 and 2018 were retrospectively evaluated. Patient, fracture, and treatment characteristics were collected, and functional outcome as well as quality of life were assessed. Twenty-nine patients with posterior process fractures of the talus were identified in our database.

RESULTS

The most frequently seen mechanism of trauma was fall from height in 13 patients (44.8%). Twenty-two patients underwent primary arthrodesis or operative reduction and fixation of the fracture (75.9%). Eighty-two percent of the patients returned the questionnaires with a mean follow-up of 6 years. The 2 patients with primary arthrodesis were excluded from outcome analysis. The mean Foot Function Index score was 1.8 (range 0.0-10). The mean American Orthopaedic Foot & Ankle Society (AOFAS) score was 78.7 points (range 0-100). The mean quality of life EuroQol-5D (EQ-5D) index score was 0.78 (range -0.26 to 1). The mean visual analog scale (VAS) on overall patient satisfaction was 8.2 (range 1-10).

CONCLUSION

Operative management of extended posterior talar fractures was found to provide good functional outcome, quality of life, and patient satisfaction. Although the patients treated nonoperatively were found to have less severe injuries, they demonstrated worse overall outcome, which is supportive of surgical management. Nonoperative treatment is therefore only justified in selected patients.

LEVEL OF EVIDENCE

Level IV, retrospective case series.

Health-Related Quality of Life Is Decreased After Necrotizing Soft-Tissue Infections

BACKGROUND

A necrotizing soft-tissue infection (NSTI) is a rare but severe infection with a high mortality rate of 12%-20%. Diagnosing is challenging and often delayed. Treatment consists of surgical debridement of all necrotic tissue and administration of antibiotics. Despite adequate treatment, survivors are often left with extensive wounds, resulting in mutilating scars and functional deficits. Both the disease and the subsequent scars can negatively influence the health-related quality of life (HRQoL). The present study was performed to contribute to the knowledge about HRQoL in patients after NSTI.

METHODS

We retrospectively identified patients treated for NSTI in a tertiary center in the Netherlands. Patient and treatment characteristics were collected and patients were asked to fill in a Short Form 36 questionnaire.

RESULTS

Forty-six patients with a diagnosis of NSTI were identified. Twenty-eight (61%) were male and mean age was 57 y. Thirty-nine patients (80%) survived. Thirty-one (84%) of the survivors returned the questionnaire after a median follow-up of 4.1 y (interquartile range [IQR], 2.4-5.9 y). Statistically significantly decreased scores when compared to the Dutch reference values were observed for the Short Form 36 domains, physical functioning, role-physical functioning, general health, and the combined Physical Component Score. No differences were observed for the other five domains or for the Mental Component Score.

CONCLUSIONS

This study confirms that NSTI negatively affects HRQoL as reported by the patient, especially on the physical domains. To learn more about HRQoL in patients after NSTI, studies in larger groups with a more disease-specific questionnaire should be performed.

LEVEL OF EVIDENCE

Level 3, prognostic and epidemiological.

Bipolar clavicular fractures and treatment options

Introduction

Fractures of the clavicle are common injuries, accounting 2.6–4% of all fractures in adults. Of these fractures, 21–28% are lateral clavicle fractures and 2–3% are medial clavicle fractures. Bipolar clavicle fractures are defined as a lateral and medial fracture and are uncommon. There is no consensus on the treatment of these fractures. The aim of this study is to provide a treatment on bipolar clavicle fractures based on the current literature.

Methods

The electronic databases PubMed, the Cochrane library and EMBASE were searched up on September 25th, 2017. Two reviewers (KR and TG) independently screened titles and abstracts for their relevance. Studies designed to evaluate the outcomes of conservative and/or operative treatment of segmental bipolar clavicle fractures in adults (> 16 years) were included. Editorials and commentaries were excluded, as well as synthetic, cadaveric and animal studies. Primary outcomes considered were pain reduction and shoulder function. Secondary outcomes considered are complications.

Results

Ten studies reporting results from ten patients were included for the review. In most patients, if treated operatively, surgical treatment with the use of double plating was performed. Only in elderly patients conservative treatment was adopted. All included patients were pain free and had a full range of motion after 3–6 months. Only two case reports provided a DASH score, while in eight studies no functional outcome score was measured.

Conclusion

A missed bipolar fracture can complicate the clinical progress. Surgical management of these fractures may be necessary; however, the treatment of choice depends on the age of the patient, daily activities and comorbidity.

Electronic supplementary material

The online version of this article (10.1007/s00068-019-01191-5) contains supplementary material, which is available to authorized users.

Identification of Postoperative Step-Offs and Gaps With Brodén's View Following Open Reduction and Internal Fixation of Calcaneal Fractures

BACKGROUND

To date, there is no consensus regarding which postoperative imaging technique should be used after open reduction and internal fixation of an intra-articular calcaneal fracture. The aim of this study was to clarify whether Brodén's view is sufficient as postoperative radiologic examination to assess step-offs and gaps of the posterior facet.

METHODS

Six observers estimated the size of step-offs and gaps on Brodén's view in 42 surgically treated intra-articular calcaneal fractures. These findings were compared to postoperative CT scans (gold standard). Inter- and intraobserver reliability were calculated and compared using intraclass correlation coefficients (ICCs).

RESULTS

An accuracy of approximately 75% for both step-offs and gaps was found in foot and ankle experts. Less experienced observers correctly identified step-offs and gaps in approximately 62% of cases on fluoroscopy and in 48% on radiographs. Interobserver reliability for intraoperative fluoroscopy as well as postoperative radiographs was fair for step-offs, whereas interobserver reliability for gaps was excellent. Intraobserver reliability showed a low level of agreement for intraoperative fluoroscopy, in contrast to postoperative radiographs with excellent agreement for step-offs and good agreement for gaps.

CONCLUSION

Our results show that especially for more experienced foot and ankle surgeons, in the majority of fractures, Brodén's view accurately showed step-offs and gaps following open reduction and internal fixation. Interobserver reliability showed a fair level of agreement for step-offs and excellent agreement for gaps. Intraobserver reliability was only enough for radiographs, not for fluoroscopy.

LEVEL OF EVIDENCE

Level IV, case series.

Routine pelvic X-rays in asymptomatic hemodynamically stable blunt trauma patients: A meta-analysis

INTRODUCTION

There is no consensus on how pelvic X-rays should be ordered selectively in blunt trauma patients which may save time, reduce radiation exposure and costs. The aim of this systematic review and meta-analysis was to assess the need for routine pelvic X-rays in awake, respiratory and hemodynamically (HD) stable blunt trauma patients without signs of pelvic fracture. Criteria to identify patients who could safely forgo pelvic X-ray were evaluated.

METHODS

A literature search was performed for prospective comparative cohort studies. Inclusion criteria were: blunt force trauma, hemodynamically and respiratory stable and awake patients, physical examination (PE) for pelvic fractures was adequately described, and the reliability of negative PE findings could be evaluated. Primary outcome was the negative predictive value (NPV) of PE for all and for clinically relevant pelvic fractures. Additionally sensitivity, specificity and positive predictive value (PPV) were calculated.

RESULTS

Ten studies were included; yielding a total of 11,423 patients. The NPV of PE for all pelvic fractures ranged from 0.96 to 1.00 with a median of 0.996. Combining studies, total NPV was 0.991. For clinically relevant fractures, the NPV of PE ranged from 0.996 to 1.00 with a median of 1.00. In patients with negative findings during PE, 0.9% had fractures, and 0.1% had clinically relevant fractures, none requiring surgical management.

CONCLUSIONS

In awake, hemodynamically and respiratory stable blunt trauma patients, PE could identify those patients who could safely forgo pelvic X-ray. Selective ordering of pelvic X-ray may lead to a decrease in patient work-up time, lower radiation exposure, and reduce costs. A decision making flow chart is proposed..

Extra-articular Medial Impression Fracture of the Talus: A Previously Undescribed Injury

BACKGROUND

Peripheral fractures of the talus are uncommon. Almost all the literature regarding talar fractures consists of central intra-articular fractures, whereas studies about peripheral talar fractures are lacking. The aim of this study is to increase awareness in diagnosing an unusual peripheral extra-articular medial impression fracture of the talus.

METHODS

This study includes a retrospective case series of patients with an extra-articular medial impression fracture of the talus. Patient characteristics, trauma mechanism, diagnostics, fracture characteristics, and treatment were reported.

RESULTS

Eight consecutive patients with an extra-articular medial impression fracture of the talus were identified. In 80%, the trauma mechanism was a supination or inversion injury of the ankle and foot. An X-ray was obtained in all patients; in 7 (88%) patients, a computed tomography scan was done, and an additional magnetic resonance imaging was done in 3 (38%) patients. In 4 patients (50%), the correct diagnosis was missed at first presentation. The delay between injury and diagnosis was 0 to 180 days (of 36 days on average).

CONCLUSION

This is the first case series to describe patients with a peripheral extra-articular medial impression fracture of the talus. Good clinical examination and judicious use of diagnostic imaging are a necessity to find the talar impression fractures in a timely manner, and treatment can be started immediately.

LEVELS OF EVIDENCE

Level V.

Mesh versus suture repair of umbilical hernia in adults: a randomised, double-blind, controlled, multicentre trial

BACKGROUND

Both mesh and suture repair are used for the treatment of umbilical hernias, but for smaller umbilical hernias (diameter 1-4 cm) there is little evidence whether mesh repair would be beneficial. In this study we aimed to investigate whether use of a mesh was better in reducing recurrence compared with suture repair for smaller umbilical hernias.

METHODS

We did a randomised, double-blind, controlled multicentre trial in 12 hospitals (nine in the Netherlands, two in Germany, and one in Italy). Eligible participants were adults aged at least 18 years with a primary umbilical hernia of diameter 1-4 cm, and were randomly assigned (1:1) intraoperatively to either suture repair or mesh repair. In the first 3 years of the inclusion period, blocked randomisation (of non-specified size) was achieved by an envelope randomisation system; after this time computer-generated randomisation was introduced. Patients, investigators, and analysts were masked to the allocated treatment, and participants were stratified by hernia size (1-2 cm and >2-4 cm). At study initiation, all surgeons were invited to training sessions to ensure they used the same standardised techniques for suture repair or mesh repair. Patients underwent physical examinations at 2 weeks, and 3, 12, and 24-30 months after the operation. The primary outcome was the rate of recurrences of the umbilical hernia after 24 months assessed in the modified intention-to-treat population by physical examination and, in case of any doubt, abdominal ultrasound. This trial is registered with ClinicalTrials.gov, number NCT00789230.

FINDINGS

Between June 21, 2006, and April 16, 2014, we randomly assigned 300 patients, 150 to mesh repair and 150 to suture repair. The median follow-up was 25·1 months (IQR 15·5-33·4). After a maximum follow-up of 30 months, there were fewer recurrences in the mesh group than in the suture group (six [4%] in 146 patients vs 17 [12%] in 138 patients; 2-year actuarial estimates of recurrence 3·6% [95% CI 1·4-9·4] vs 11·4% (6·8-18·9); p=0·01, hazard ratio 0·31, 95% CI 0·12-0·80, corresponding to a number needed to treat of 12·8). The most common postoperative complications were seroma (one [<1%] in the suture group vs five [3%] in the mesh group), haematoma (two [1%] vs three [2%]), and wound infection (one [<1%] vs three [2%]). There were no anaesthetic complications or postoperative deaths.

INTERPRETATION

This is the first study showing high level evidence for mesh repair in patients with small hernias of diameter 1-4 cm. Hence we suggest mesh repair should be used for operations on all patients with an umbilical hernia of this size.

FUNDING

Department of Surgery, Erasmus University Medical Center, Rotterdam, Netherlands.

Unstable fragility fractures of the ankle in the elderly: Transarticular Steinmann pin or external fixation

INTRODUCTION

Because of poor skin conditions and comorbidity, open reduction and internal fixation in ankle fractures is frequently contra-indicated in the elderly. This study reports the results of two temporary fixation types in fragility fractures in the older patient: transarticular Steinmann pin fixation and external fixation.

METHODS

Patients aged over 60 treated with a Steinmann pin or external fixation were retrospectively included. Patient, fracture and treatment characteristics were collected.

RESULTS

Fifteen patients were included. Nine were managed using a Steinmann pin and six by external fixation. All reached fracture consolidation. Patients treated with a Steinmann pin underwent a median of 2 operations and the pin was left in situ for 80 days. Three patients suffered from superficial wound infection. X-ray showed malreduction in 67% and only two patients returned to pre-injury mobility. A median of 2 operations with 32 fixation days was reported in the external fixation group. This group showed one deep infection. In 50% there was malreduction, one patient experienced disability in ambulation at the end of treatment.

CONCLUSION

Both techniques show few complications, but have, as expected, poor results in fracture reduction and functional outcome. External fixation and subsequent internal fixation could result in better functional outcome.

Resection of Small Avulsion Fractures of the Anterior Process of the Calcaneus for Refractory Complaints

Minor injuries of the anterior process of the calcaneus occur frequently and most heal uneventfully. The present series reports on 6 patients with persistent complaints after anterior process avulsion fractures. The avulsed fragments of the anterior process at the calcaneocuboid joint were surgically excised in all, which resolved the complaints completely in 4 patients and reduced the complaints significantly in 2. If conservative measures fail and the complaints are refractory, debridement of the anterior process avulsion fractures at the calcaneocuboid joint could be a viable option.

Management of penetrating injuries of the upper extremities

BACKGROUND

Routine surgical exploration after penetrating upper extremity trauma (PUET) to exclude arterial injury leads to a large number of negative explorations and iatrogenic injuries. Selective non-operative management (SNOM) is gaining in favor for patients with PUET. The present study was undertaken to assess the validity of SNOM in PUET and to present a practical management algorithm.

METHODS

All consecutive patients presenting to a tertiary referral center following PUET were included in this prospective observational cohort study. Patients were managed along Advanced Trauma Life Support (ATLS©) guidelines, and based on clinical manifestations, either underwent emergency surgery or were treated conservatively with or without additional diagnostic investigations. Computed tomography angiography (CTA) was indicated by a preset protocol based on the physical examination.

RESULTS

During the four-month study period, 161 patients with PUET were admitted. Sixteen (9.9%) patients underwent emergency surgery, revealing 14 vascular injuries. Another 8 (5.0%) patients underwent vascular exploration following CTA. The remaining patients (n=137) were managed non-operatively for vascular matters. Eighteen (11.2%) patients required semi-elective surgical intervention for fractures or nerve injuries. During the follow- up, no missed vascular injuries were detected.

CONCLUSION

Neither routine exploration nor routine CTA is indicated after PUET. Stable patients should undergo additional investigation based on clinical findings only. SNOM is a feasible and safe strategy after PUET.

Treatment of rectal war wounds

Treatment strategies for penetrating rectal injuries (PRI) in civilian settings are still not uniformly agreed, in part since high-energy transfer PRI, such as is frequently seen in military settings, are not taken into account. Here, we describe three cases of PRI, treated in a deployed combat environment, and outline the management strategies successfully employed. We also discuss the literature regarding PRI management. Where there is a major soft tissue component, repetitive debridement and vacuum therapy is useful. A loop or end colostomy should be used, depending on the degree of damage to the anal sphincter complex.

"Thunderstruck": penetrating thoracic injury from lightning strike

Lightning strike victims are rarely presented at an emergency department. Burns are often the primary focus. This case report describes the improvised explosive device like-injury to the thorax due to lightning strike and its treatment, which has not been described prior in (kerauno)medicine. Penetrating injury due to blast from lightning strike is extremely rare. These "shrapnel" injuries should however be ruled out in all patients struck by lightning.

Treatment of penetrating trauma of the extremities: ten years' experience at a Dutch level 1 trauma center

Background

A selective non-operative management (SNOM) has found to be an adequate and safe strategy to assess and treat patients suffering from penetrating trauma of the extremities (PTE). With this SNOM comes a strategy in which adjuvant investigations or interventions are not routinely performed, but based on physical examination only.

Methods

All subsequent patients presented with PTE at a Dutch level I trauma center from October 2000 to June 2011 were included in this study. In-hospital and long-term outcome was analysed in the light of assessment of these patients according to the SNOM protocol.

Results

A total of 668 patients (88.2% male; 33.8% gunshot wounds) with PTE presented at the Emergency Department of a level 1 traumacenter, of whom 156 were admitted for surgical treatment or observation. Overall, 22 (14%) patients that were admitted underwent exploration of the extremity for vascular injury. After conservative observation, two (1.5%) patients needed an intervention to treat (late onset) vascular complications. Other long-term extremity related complications were loss of function or other deformity (n = 9) due to missed nerve injury, including 2 patients with peroneal nerve injury caused by delayed compartment syndrome treatment.

Conclusion

A SNOM protocol for initial assessment and treatment of PTE is feasible and safe. Clinical examination of the injured extremity is a reliable diagnostic 'tool' for excluding vascular injury. Repeated assessments for nerve injuries are important as these are the ones that are frequently missed and result in long-term disability. Level of evidence: II / III, retrospective prognostic observational cohort study Key words Penetrating trauma, extremity, vascular injury, complications.

Damage to the superficial peroneal nerve in operative treatment of fibula fractures: straight to the bone? Case report and review of the literature

Ankle fractures are a significant part of the lower extremity trauma seen in the emergency department. Neurologic complications of ankle fracture surgery are infrequently described but account for significant morbidity. The risk of nerve injury is increased for the Blair and Botte type B pattern of the intermediate cutaneous dorsal nerve branch, crossing the distal fibula from posterior to anterior (at 5 to 7 cm from malleolar tip). This pattern is present in about 10% to 15% of patients. Injuries to the superficial peroneal nerve and its branches negatively influence the outcome. Early recognition and protection might reduce the incidence of superficial peroneal nerve injuries during open reduction and internal fixation of lateral malleolus fractures. We describe 2 surgically treated ankle fractures with superficial peroneal nerve branch (intermediate cutaneous dorsal nerve) involvement and review the current literature.

Randomized clinical trial of laparoscopic versus open repair of the perforated peptic ulcer: the LAMA Trial

BACKGROUND

Laparoscopic surgery has become popular during the last decade, mainly because it is associated with fewer postoperative complications than the conventional open approach. It remains unclear, however, if this benefit is observed after laparoscopic correction of perforated peptic ulcer (PPU). The goal of the present study was to evaluate whether laparoscopic closure of a PPU is as safe as conventional open correction.

METHODS

The study was based on a randomized controlled trial in which nine medical centers from the Netherlands participated. A total of 109 patients with symptoms of PPU and evidence of air under the diaphragm were scheduled to receive a PPU repair. After exclusion of 8 patients during the operation, outcomes were analyzed for laparotomy (n = 49) and for the laparoscopic procedure (n = 52).

RESULTS

Operating time in the laparoscopy group was significantly longer than in the open group (75 min versus 50 min). Differences regarding postoperative dosage of opiates and the visual analog scale (VAS) for pain scoring system were in favor of the laparoscopic procedure. The VAS score on postoperative days 1, 3, and 7 was significant lower (P < 0.05) in the laparoscopic group. Complications were equally distributed. Hospital stay was also comparable: 6.5 days in the laparoscopic group versus 8.0 days in the open group (P = 0.235).

CONCLUSIONS

Laparoscopic repair of PPU is a safe procedure compared with open repair. The results considering postoperative pain favor the laparoscopic procedure.

Incisional hernia after upper abdominal surgery: a randomised controlled trial of midline versus transverse incision

Objectives

To determine whether a transverse incision is an alternative to a midline incision in terms of incisional hernia incidence, surgical site infection, postoperative pain, hospital stay and cosmetics in cholecystectomy.

Summary background data

Incisional hernias after midline incision are commonly underestimated but probably complicate between 2 and 20% of all abdominal wall closures. The midline incision is the preferred incision for surgery of the upper abdomen despite evidence that alternatives, such as the lateral paramedian and transverse incision, exist and might reduce the rate of incisional hernia. A RCT was preformed in the pre-laparoscopic cholecystectomy era the data of which were never published.

Methods

One hundred and fifty female patients were randomly allocated to cholecystectomy through midline or transverse incision. Early complications, the duration to discharge and the in-hospital use of analgesics was noted. Patients returned to the surgical outpatient clinic for evaluation of the cosmetic results of the scar and to evaluate possible complications such as fistula, wound dehiscence and incisional hernia after a minimum of 12 months follow-up.

Results

Two percent (1/60) of patients that had undergone the procedure through a transverse incision presented with an incisional hernia as opposed to 14% (9/63) of patients from the midline incision group (P = 0.017). Transverse incisions were found to be significantly shorter than midline incisions and associated with more pleasing appearance. More patients having undergone a midline incision, reported pain on day one, two and three postoperatively than patients from the transverse group. The use of analgesics did not differ between the two groups.

Conclusions

In light of our results a transverse incision should, if possible, be considered as the preferred incision in acute and elective surgery of the upper abdomen when laparoscopic surgery is not an option.

Management in patients with liver cirrhosis and an umbilical hernia

BACKGROUND

Optimal management in patients with umbilical hernias and liver cirrhosis with ascites is still under debate. The objective of this study was to compare the outcome in our series of operative versus conservative treatment of these patients.

METHODS

In the period between 1990 and 2004, 34 patients with an umbilical hernia combined with liver cirrhosis and ascites were identified from our hospital database. In 17 patients, treatment consisted of elective hernia repair, and 13 were managed conservatively. Four patients underwent hernia repair during liver transplantation.

RESULTS

Elective hernia repair was successful without complications and recurrence in 12 out of 17 patients. Complications occurred in 3 of these 17 patients, consisting of wound-related problems and recurrence in 4 out 17. Success rate of the initial conservative management was only 23%; hospital admittance for incarcerations occurred in 10 of 13 patients, of which 6 required hernia repair in an emergency setting. Two patients of the initially conservative managed group died from complications of the umbilical hernia. In the 4 patients that underwent hernia correction during liver transplantation, no complications occurred and 1 patient had a recurrence.

CONCLUSIONS

Conservative management of umbilical hernias in patients with liver cirrhosis and ascites leads to a high rate of incarcerations with subsequent hernia repair in an emergency setting, whereas elective repair can be performed with less morbidity and is therefore advocated.

Intraperitoneal polypropylene mesh hernia repair complicates subsequent abdominal surgery

BACKGROUND

Prosthetic incisional hernia repair (PIHR) is superior to primary closure in preventing hernia recurrence. Serious complications have been associated with the use of prosthetic material. Complications of subsequent surgical interventions after prior PIHR in relation to its anatomical position were the objectives of this study.

PATIENTS AND METHODS

Patients who underwent subsequent laparotomy/laparoscopy after PIHR between January 1992 and February 2005 at our institution were evaluated. Intraperitoneal and preperitoneal mesh was related to complication rates after subsequent surgical interventions.

RESULTS

Sixty-six of 335 patients underwent re-laparotomy after PIHR. The perioperative course was complicated in 76% (30/39) of procedures with intraperitoneal placed grafts compared to 29% (8/27) of interventions with preperitoneally positioned meshes (P < 0.001). Small bowel resections were necessary in 21% of the intraperitoneal group (8/39) versus 0% in the preperitoneal group. Surgical site infection rates were higher in the intraperitoneal group (10/39, 26%, versus 1/27, 4%). Enterocutaneous fistula formation was rare and occurred in two patients after subsequent laparotomy (5%).

CONCLUSIONS

Re-laparotomy after PIHR with polypropylene meshes are associated with more preoperative and postoperative complications when the mesh is placed intraperitoneally. Therefore 0intraperitoneal positioning of polypropylene mesh at incisional hernia repair should be avoided if possible.

Patent processus vaginalis in the adult as a risk factor for the occurrence of indirect inguinal hernia

BACKGROUND

Inguinal hernias are a common entity with nearly 31,000 repairs annually in The Netherlands and over 800,000 in the USA. The aim of the present study is to determine whether a laparoscopically diagnosed patent processus vaginalis (PPV) is a risk factor for the development of groin hernia.

METHODS

The study population was originally composed of 599 consecutive cases (189 male, 32%) of laparoscopic transperitoneal surgery for different indications performed in 4 teaching hospitals in The Netherlands between November 1998 and February 2002. During laparoscopy, the deep inguinal ring was inspected bilaterally. The PPV group was compared with the obliterative processus vaginalis (OPV) group.

RESULTS

After a mean follow-up of 5.5 years, the studied population consisted of 337 cases (94 male, 28%). In this study 12% of the studied population appeared to have PPV in adult life. The percentage PPV of our study group is much higher than the percentage of hernia repairs performed in the Dutch population. A greater proportion (12%) of hernia repairs in the PPV group was found as compared with the OPV group (3%). The chance of developing an inguinal hernia within 5.3 years is four times higher in the group with PPV. No significant correlation between age and the prevalence of PPV was observed.

CONCLUSION

This study demonstrates that PPV is an etiologic factor and a risk factor for acquiring an indirect inguinal hernia in adults.

Evaluation of new prosthetic meshes for ventral hernia repair

BACKGROUND

In hernia repair, particularly laparoscopic hernia repair, direct contact between mesh and abdominal organs cannot always be avoided. Several mesh materials and composite meshes have been developed to decrease subsequent adhesion formation. Recently, new meshes have been introduced. In an experimental rat study, their value was established and compared with that of meshes already available on the market.

METHODS

In 200 rats, eight different meshes were placed intraperitoneally and in direct contact with abdominal viscera. The following meshes were tested: polypropylene (Prolene), e-PTFE (Dualmesh), polypropylene- polyglecaprone composite (Ultrapro), titanium-polypropylene composite (Timesh), polypropylene with carboxymethylcellulose-sodium hyaluronate coating (Sepramesh), polyester with collagen-polyethylene glycol-glycerol coating (Parietex Composite), polypropylene-polydioxanone composite with oxidized cellulose coating (Proceed), and bovine pericardium (Tutomesh). At 7 and then at 30 days postoperatively, adhesion formation, mesh incorporation, tensile strength, shrinkage, and infection were scored by two independent observers.

RESULTS

Parietex Composite, Sepramesh, and Tutomesh resulted in decreased surface coverage with adhesions, whereas Prolene, Dualmesh, Ultrapro, Timesh, and Proceed resulted in increased adhesion coverage. Parietex Composite, Prolene, Ultrapro, and Sepramesh resulted in the most mesh incorporation. Dualmesh and Tutomesh resulted in significantly increased shrinkage. There were no differences in mesh infection. Parietex Composite and Dualmesh resulted in a moderate inflammatory reaction, as compared with the mild reaction the other meshes exhibited.

CONCLUSION

Parietex Composite and Sepramesh combine minimal adhesion formation with maximum mesh incorporation and tensile strength. The authors recommend the use of these meshes for hernia repair in which direct contact with the abdominal viscera cannot be avoided.

Incisional hernia: early complication of abdominal surgery

It has been suggested that early development of the incisional hernia is caused by perioperative factors, such as surgical technique and wound infection. Late development may implicate other factors, such as connective tissue disorders. Our objective was to establish whether incisional hernia develops early after abdominal surgery (i.e., during the first postoperative month). Patients who underwent a midline laparotomy between 1995 and 2001 and had had a computed tomography (CT) scan of the abdomen during the first postoperative month were identified retrospectively. The distance between the two rectus abdominis muscles was measured on these CT scans, after which several parameters were calculated to predict incisional hernia development. Hernia development was established clinically through chart review or, if the chart review was inconclusive, by an outpatient clinic visit. The average and maximum distances between the left and right rectus abdominis muscles were significantly larger in patients with subsequent incisional hernia development than in those without an incisional hernia (P < 0.0001). Altogether, 92% (23/25) of incisional hernia patients had a maximum distance of more than 25 mm compared to only 18% (5/28) of patients without an incisional hernia (P < 0.0001). Incisional hernia occurrence can thus be predicted by measuring the distance between the rectus abdominis muscles on a postoperative CT scan. Although an incisional hernia develops within weeks of surgery, its clinical manifestation may take years. Our results indicate perioperative factors as the main cause of incisional hernias. Therefore, incisional hernia prevention should focus on perioperative factors.

Totally extraperitoneal repair for bilateral inguinal hernia: does mesh configuration matter?

BACKGROUND

The endoscopic preperitoneal approach has numerous advantages for the reconstruction of bilateral inguinal hernias. Repair may be achieved using either one large or two small meshes. The aim of this study was to investigate whether one of the techniques was superior in terms of recurrence and complication rate.

METHODS

Data obtained from 113 patients who underwent surgery between January 1998 and December 2001 was reviewed. For the sake of this study, 86% of all patients were examined for hernia recurrence at an additional outpatient visit.

RESULTS

The findings showed recurrence rates, of 3.5% for single mesh and 3.7% for double mesh. This difference was not significant. Complication rates did not differ significantly between the groups.

CONCLUSIONS

Endoscopic preperitoneal bilateral hernia repair is a safe and reliable technique in the hands of experienced surgeons. The rate of hernia recurrence and complications is low and independent of the mesh configuration (single or double). Mesh configuration based on personal preference is permissible.

Long-term follow-up after umbilical hernia repair: are there risk factors for recurrence after simple and mesh repair

Adult umbilical hernia is a common surgical condition mainly encountered in the fifth and sixth decade of life. Despite the high frequency of the umbilical hernia repair procedure, disappointingly high recurrence rates, up to 54% for simple suture repair, are reported. Since both mesh and suture techniques are used in our clinic we set out to investigate the respective recurrence rates and associated complications, retrospectively. Patients who were treated between January 1998 and December 2002 were identified from our hospital database and invited to attend the outpatient department for an extra follow-up, history taking and physical examination. The use of prosthetic material, occurrence of surgical site infection, body mass and height as well as recurrence were recorded at the time of this survey. In total, 131 consecutive patients underwent operative repair of an umbilical hernia. Twenty-eight percent of the patients were female (n = 37). In 12 patients (11%) umbilical hernia repair was achieved with mesh implantation. Fourteen umbilical hernia recurrences were noted (13%); none had been repaired using mesh. No relationship was found between wound infection or obesity and umbilical hernia recurrence. In the light of these results it is necessary to re-evaluate our clinical "guidelines" on mesh placement in umbilical hernia repair: apparently not every umbilical fascial defect needs mesh repair. Research should focus on establishing risk factors for hernia recurrence.

Long-term follow-up of a randomized controlled trial of suture versus mesh repair of incisional hernia

OBJECTIVE

The objective of this study was to determine the best treatment of incisional hernia, taking into account recurrence, complications, discomfort, cosmetic result, and patient satisfaction.

BACKGROUND

Long-term results of incisional hernia repair are lacking. Retrospective studies and the midterm results of this study indicate that mesh repair is superior to suture repair. However, many surgeons are still performing suture repair.

METHODS

Between 1992 and 1998, a multicenter trial was performed, in which 181 eligible patients with a primary or first-time recurrent midline incisional hernia were randomly assigned to suture or mesh repair. In 2003, follow-up was updated.

RESULTS

Median follow-up was 75 months for suture repair and 81 months for mesh repair patients. The 10-year cumulative rate of recurrence was 63% for suture repair and 32% for mesh repair (P < 0.001). Abdominal aneurysm (P = 0.01) and wound infection (P = 0.02) were identified as independent risk factors for recurrence. In patients with small incisional hernias, the recurrence rates were 67% after suture repair and 17% after mesh repair (P = 0.003). One hundred twenty-six patients completed long-term follow-up (median follow-up 98 months). In the mesh repair group, 17% suffered a complication, compared with 8% in the suture repair group (P = 0.17). Abdominal pain was more frequent in suture repair patients (P = 0.01), but there was no difference in scar pain, cosmetic result, and patient satisfaction.

CONCLUSIONS

Mesh repair results in a lower recurrence rate and less abdominal pain and does not result in more complications than suture repair. Suture repair of incisional hernia should be abandoned.

Administration of interleukin-7 after allogeneic bone marrow transplantation improves immune reconstitution without aggravating graft-versus-host disease

Prolonged immunodeficiency after allogeneic bone marrow transplantation (BMT) causes significant morbidity and mortality from infection. This study examined in murine models the effects of interleukin-7 (IL-7) given to young and middle-aged (9-month-old) recipients of major histocompatibility complex (MHC)-matched or -mismatched allogeneic BMT. Although administration of IL-7 from day 0 to 14 after syngeneic BMT promoted lymphoid reconstitution, this regimen was ineffective after allogeneic BMT. However, IL-7 administration from day 14 (or 21) to 27 after allogeneic BMT accelerated restoration of the major lymphoid cell populations even in middle-aged recipients. This regimen significantly expanded donor-derived thymocytes and peripheral T cells, B-lineage cells in bone marrow and spleen, splenic natural killer (NK) cells, NK T cells, and monocytes and macrophages. Interestingly, although recipients treated with IL-7 had significant increases in CD4(+) and CD8(+) memory T-cell populations, increases in naive T cells were less profound. Most notable, however, were the observations that IL-7 treatment did not exacerbate graft-versus-host disease (GVHD) in recipients of an MHC-matched BMT, and would ameliorate GVHD in recipients of a MHC-mismatched BMT. Nonetheless, graft-versus-leukemia (GVL) activity (measured against 32Dp210 leukemia) remained intact. Although activated and memory CD4(+) and CD8(+) T cells normally express high levels of IL-7 receptor (IL-7R, CD127), activated and memory alloreactive donor-derived T cells from recipients of allogeneic BMT expressed little IL-7R. This might explain the failure of IL-7 administration to exacerbate GVHD. In conclusion, posttransplant IL-7 administration to recipients of an allogeneic BMT enhances lymphoid reconstitution without aggravating GVHD while preserving GVL.