Acute Compartment Syndrome

The efficacy of the Bogota Bag technique for wound closure in limb fasciotomy patients: a prospective cohort study

PURPOSE

Fasciotomy is a surgical procedure that involves the incision of fascial compartments in the body to relieve pressure, prevent tissue damage, and maintain blood flow. This study aimed to investigate the effectiveness of the Bogota Bag technique in closing fasciotomy wounds in patients with lower limb compartment syndrome.

METHODS

A prospective cohort study was conducted between October 2022 and October 2023 to document our experience in employing the Bogota Bag technique for fasciotomy closure. The study included the evaluation of medical files from fifteen patients aged 17 to 61.

RESULTS

The outcomes of the study present the initial series of limb fasciotomies treated with the Bogota Bag technique. Fifteen patients (14 male, 1 female) were included in the study. The average age of the patients was 34.73 ± 13.9 years and the average hospitalization was 8.33 ± 3.2 days. The average closure time of fasciotomy is 3.6 ± 1.4 days.

CONCLUSION

This report makes a significant contribution as the first documented series of limb fasciotomies treated with the Bogota Bag technique. This method exhibits simplicity in execution, cost-effectiveness, and a low incidence of complications.

Comparison of Negative-Pressure Wound Therapy and Gradual Wound Approximation Treatments for Infected Fasciotomy Wounds

Negative-pressure wound therapy (NPWT) and gradual wound approximation (GWA) are effective and reliable methods of treating fasciotomy wounds. However, the effectiveness of these 2 methods in treating infected wounds remains unclear. The aim of our study was to compare these 2 delayed primary closure methods of treating infected fasciotomy wounds on the limbs. Patients who underwent fasciotomy surgery on the extremities after sustaining crushing injuries in the 2023 Kahramanmaraş-centered earthquakes and who were referred owing to infected open wounds during follow-up were included in the study. Patients who completed the wound closure process at our clinic were divided into 2 groups: the NPWT and GWA groups. Using retrospectively collected data, the groups were compared in terms of demographic characteristics, time until wound closure, number of surgeries, skin graft requirements, and complications. Laboratory parameters were also examined. Thirteen patients, (with 21 wounds) who underwent NPWT and 14 (with 22 wounds) who underwent GWA, were examined. The average age of the NPWT group was 32.85 ± 18.37 years, whereas that of the GWA group was 25.21 ± 16.31 years. The number of surgeries in the NPWT and GWA groups were 5.38 ± 2.11 and 4.23 ± 1.27, respectively, and the difference was statistically significant (P = .040). The average wound closure times of the NPWT and GWA groups (P = .0210) (11.00 ± 4.86 days and 8.27 ± 2.41 days, respectively) also differed significantly. Skin grafting was performed in 5 patients in the NPWT group and 2 in the GWA group. There were no significant differences between the 2 groups in terms of skin graft requirements or complication rates. NPWT and GWA are effective and reliable methods of closing infected fasciotomy wounds. Closure of these wounds can be achieved in a shorter time and with fewer surgeries using GWA than using NPWT.

Microfluidics as a Powerful Tool to Investigate Microvascular Dysfunction in Trauma Conditions: A Review of the State-of-the-Art

Skeletal muscle trauma such as fracture or crush injury can result in a life-threatening condition called acute compartment syndrome (ACS), which involves elevated compartmental pressure within a closed osteo-fascial compartment, leading to collapse of the microvasculature and resulting in necrosis of the tissue due to ischemia. Diagnosis of ACS is complex and controversial due to the lack of standardized objective methods, which results in high rates of misdiagnosis/late diagnosis, leading to permanent neuro-muscular damage. ACS pathophysiology is poorly understood at a cellular level due to the lack of physiologically relevant models. In this context, microfluidics organ-on-chip systems (OOCs) provide an exciting opportunity to investigate the cellular mechanisms of microvascular dysfunction that leads to ACS. In this article, the state-of-the-art OOCs designs and strategies used to investigate microvasculature dysfunction mechanisms is reviewed. The differential effects of hemodynamic shear stress on endothelial cell characteristics such as morphology, permeability, and inflammation, all of which are altered during microvascular dysfunction is highlighted. The article then critically reviews the importance of microfluidics to investigate closely related microvascular pathologies that cause ACS. The article concludes by discussing potential biomarkers of ACS with a special emphasis on glycocalyx and providing a future perspective.

Proteomics analysis of deep fascia in acute compartment syndrome

Acute compartment syndrome (ACS) is a syndrome in which local circulation is affected due to increased pressure within the compartment. We previously found in patients with calf fractures, the pressure of fascial compartment could be sharply reduced upon the appearance of tension blisters. Deep fascia, as the important structure for compartment, might play key role in this process. Therefore, the aim of the present study was to examine the differences in gene profile in deep fascia tissue in fracture patients of the calf with or without tension blisters, and to explore the role of fascia in pressure improvement in ACS. Patients with lower leg fracture were enrolled and divided into control group (CON group, n = 10) without tension blister, and tension blister group (TB group, n = 10). Deep fascia tissues were collected and LC-MS/MS label-free quantitative proteomics were performed. Genes involved in fascia structure and fibroblast function were further validated by Western blot. The differentially expressed proteins were found to be mainly enriched in pathways related to protein synthesis and processing, stress fiber assembly, cell-substrate adhesion, leukocyte mediated cytotoxicity, and cellular response to stress. Compared with the CON group, the expression of Peroxidasin homolog (PXDN), which promotes the function of fibroblasts, and Leukocyte differentiation antigen 74 (CD74), which enhances the proliferation of fibroblasts, were significantly upregulated (p all <0.05), while the expression of Matrix metalloproteinase-9 (MMP9), which is involved in collagen hydrolysis, and Neutrophil elastase (ELANE), which is involved in elastin hydrolysis, were significantly reduced in the TB group (p all <0.05), indicating fascia tissue underwent microenvironment reconstruction during ACS. In summary, the ACS accompanied by blisters is associated with the enhanced function and proliferation of fibroblasts and reduced hydrolysis of collagen and elastin. The adaptive alterations in the stiffness and elasticity of the deep fascia might be crucial for pressure release of ACS.

Comparison of single and double incision leg fasciotomy in disaster settings-Experience from 2023 Türkiye earthquakes

INTRODUCTION

Although there are studies comparing methods for leg fasciotomy in compartment syndrome after fractures, choice of single or double fasciotomies in disasters was not investigated. The aim of this study was to compare the efficacy of single and double incision leg fasciotomy in the setting of disaster.

METHODS

Patients that have undergone fasciotomy after 2023 Kahramanmaraş earthquakes were retrospectively analyzed. The cases were separated into two groups as single incision and double incision according to the method of the first fasciotomy. The number of debridements after each fasciotomy, muscle group excisions, completion time of treatment, presence of amputation, the method of closure (primary closure or graft/flap) and positive results of wound cultures were analyzed and compared between two groups.

RESULTS

62 legs of 52 patients (22 females, 30 males, age 36.9 ± 11.2 years) with compartment syndrome that have undergone fasciotomy after 2023 Kahramanmaraş earthquakes were included in the study. Single-incision group included 27 legs and double incision group included 35 legs. Amputation was needed in 15 patients (%24.2), six in single incision group and nine in double incision group. (p = 0.75). Compartment excision (eight patients in single incision, nine patients in double incision groups, p = 0.81), number of debridements (median 4 in both groups, p = 0.55), wound closure time (median 17 days in single incision, 22 days in double incision groups, p = 0.52), graft or flap requirement (11 patients in single incision, 16 patients in double incision groups, p = 0.53), positive culture results (15 patients in single incision, 16 patients in double incision groups, p = 0.44) were not different statistically between two groups.

CONCLUSION

Single and double incision fasciotomy methods are equally effective and safe in treatment of compartment syndrome of the leg in disaster situations. To our knowledge, this is the first study comparing outcomes of single and double incision fasciotomy in disaster settings.

Reviving the Grasp: A Case Report on a Pioneering Approach to Managing Crush Syndrome and Unveiling the Occult Compartment Syndrome

A crush injury results directly from a crushing force, while crush syndrome, or traumatic rhabdomyolysis, manifests as systemic consequences stemming from the breakdown of muscle cells. Hand crush injuries present intricate challenges involving damage to multiple structures, tissue loss, and potential digit amputation, often caused by high-energy trauma. Each case demands a unique management plan, with the critical decision between limb salvage and amputation. Early intervention to restore vascularity is pivotal for preserving hand function. The complexity is heightened by the occult compartment syndrome, characterized by increased pressure causing neurovascular compromise without external signs. A patient with an insensate limb due to ipsilateral pan brachial plexus injury (BPI) adds an additional layer of complexity to the management journey, emphasizing the need for a multidisciplinary approach. This case is unique and underscores the importance of prioritizing reconstruction, identifying crush syndrome and the occult compartment syndrome, and employing a strategic, decisive approach that includes various surgical techniques for optimal outcomes in complex hand injuries.

Use of a Continuous Intracompartmental Pressure Monitoring Device During Fasciotomy

A 52-year-old man presented with a bicondylar tibial plateau fracture and acute compartment syndrome. Continuous compartment pressure monitoring was used while the patient was treated with fasciotomies and application of an external fixator. The intraoperative pressure reading in the anterior compartment decreased from 105 mm Hg to 50 mm Hg after skin and subcutaneous tissue incision. Pressure continued to decrease to 10 mm Hg after all 4 compartments were released. The patient underwent staged open reduction and internal fixation and healed both fracture and fasciotomy incisions without complication. To our knowledge, this is the first report of continuous pressure changes during the different stages of a compartment release. Future studies could expand on use of this technology to gain information on compartment pressures during release and how single release affects pressures in other compartments. [Orthopedics. 2024;47(2):e98-e101.].

Sports Medicine Curricular Recommendations for Undergraduate Medical Education

ABSTRACT

Sports medicine is a unique field encompassing many specialties and aspects of medicine. While musculoskeletal medicine is a significant aspect of sports medicine, the breadth of sports medicine extends beyond the musculoskeletal system and includes the spectrum of care for the patient who is or desires to be physically active. This article provides recommendations for sports medicine education in undergraduate medical education. The framework highlighting these recommendations uses domains of competence. Entrustable professional activities, measures that are endorsed by the Association of American Medical Colleges, were matched to domains of competence to provide objective markers of achievement. In addition to recommended sports medicine educational content, there should be consideration of both methods of assessment and implementation catered to each individual institution's needs and resources. These recommendations may serve as a guide for medical educators and institutions pursing optimization of sports medicine education.

Porcine Model of Acute Compartment Syndrome

OBJECTIVES

Acute compartment syndrome is a devastating condition associated with lasting consequences or even death if not treated in a timely fashion. Current preclinical modeling is inadequate. Ideally a model should mimic human disease. There should be a trauma-induced reperfusion or direct muscle event that causes gradual increased pressure and is amenable to release with fasciotomy. We have attempted to reproduce this mechanism and outcome in a porcine model.

METHODS

Anterior tibial musculature was injured with vascular occlusion plus exterior tourniquet crush or direct intracompartmental crush through balloon inflation. The injury was maintained for over 5 hours. At that time, the tourniquet or balloon was removed. The injuries were continuously monitored with an intramuscular continuous pressure sensor. Pressure changes were recorded and after 2 hours of postinjury observation, a fasciotomy was performed for the muscle compartment.

RESULTS

Pressures were brought to 100 mm Hg during the injury phase. During the two-hour observation period, the balloon catheter technique achieved an average pressure of 25.1 ± SD 8.8 mm Hg with a maximum reading of 38.2 mm Hg and minimum reading of 14.1 mm Hg. During this same period, the ischemia-reperfusion + direct crush technique achieved an average pressure of 33.7 ± SD 7.3 mm Hg, with a maximum reading of 43.5 mm Hg and minimum reading of 23.5 mm Hg. Average pressure postfasciotomy for the balloon catheter technique was 2.4 ± SD 2.5 mm Hg; and for the crush technique, average value postfasciotomy was 4.9 ± SD 3.7 mm Hg-both representing a return to physiologic levels.

CONCLUSION

This is the first preclinical model that shows the same response to injury and treatment as is observed in human physiology. Surgical and nonsurgical therapies for compartment syndrome can now be tested reliably.

The mechanism of the Nfe2l2/Hmox1 signaling pathway in ferroptosis regulation in acute compartment syndrome

Acute compartment syndrome (ACS) is a life-threatening orthopedic emergency, which can even result in amputation. Ferroptosis is an iron-dependent form of nonapoptotic cell death. This study investigated the mechanism of ferroptosis in ACS, explored candidate markers, and determined effective treatments. This study identified pathways involved in the development of ACS through gene set enrichment analysis (GSEA), Gene Ontology, Kyoto Encyclopedia of Genes and Genomes (KEGG), and GSEA of heme oxygenase 1 (Hmox1). Bioinformatics methods, combined with real-time quantitative polymerase chain reaction, western blot analysis, and iron staining, were applied to determine whether ferroptosis was involved in the progression of ACS and to explore the mechanism of nuclear factor erythroid-2-related factor 2 (Nfe2l2)/Hmox1 in ferroptosis regulation. Optimal drugs for the treatment of ACS were also investigated using Connectivity Map. The ferroptosis pathway was enriched in GSEA, KEGG of DEGs, and GSEA of Hmox1. After ACS, the reactive oxygen species content, tissue iron content, and oxidative stress level increased, whereas glutathione peroxidase 4 protein expression decreased. The skeletal muscle was swollen and necrotized; the number of mitochondrial cristae became fewer or even disappeared, and Nfe2l2/Hmox1 expression increased at the transcriptional and protein levels. Hmox1 was highly expressed in ACS, indicating that Hmox1 is a possible marker for ACS. we could predict 12 potential target drugs for the treatment of ACS. In conclusion, Hmox1 was a potential candidate marker for ACS diagnosis. Ferroptosis was involved in the progression of ACS. It was speculated that ferroptosis is inhibited by the Nfe2l2/Hmox1 signaling pathway.

Predictors of Foot Acute Compartment Syndrome: Big Data analysis

Acute compartment syndrome (ACS) in the foot is a challenging diagnosis and can lead to significant disabilities to patients. The present study aims to investigate the incidence, risk factors, demographics and association in the analysis of acute compartment syndrome (ACS) of the foot. We performed a retrospective review of the Trauma Quality Programs data from the American College of Surgeons including 70,525 patients who sustained a fracture of the foot from 2015 to 2018 (4 calendar years). Fasciotomies were performed in 0.7% of all foot fractures. Open fractures, crush injuries and multiple foot fractures were the strongest predictors of fasciotomies, with odds ratios of 2.38, 2.38 and 2.33 respectively. Being a male was associated with an increased likelihood of fasciotomies of 64% (p < .0001 O.R. = [1.42-1.90]), while a dislocation in the foot increased likelihood of fasciotomies by 48% (p = .0008 O.R. = [1.18-1.86]). Trauma centre level III had higher rate of fasciotomy than Tertiary Trauma centers. Multiple other factors were addressed while controlling for cofounders. This big data analysis provided information not previously reported on the risk factors, demographics, and clinical association of ACS in the foot.

Novel digital continuous sensor for monitoring of compartment pressure: a case report

Case

The American Academy of Orthopaedic Surgeons has recently identified continuous intracompartmental pressure monitoring as 1 of the few means to assist in ruling out acute compartment syndrome (ACS). There are very few methods that allow this measurement. This manuscript describes the use of a new digital monitoring system for ACS in 3 patients. This minimally invasive device, the MY01 (NXTSENS, Montreal, Canada) is capable of continuously and precisely measuring variations in intracompartmental pressure.

Conclusion

MY01 detected the occurrence of ACS at early-stage and expedited the timing of surgery for 2 patients. This tool also objectively excluded a suspected diagnosis of ACS in a medically comorbid patient, obviating the need for unnecessary fasciotomies and potential complications.

Prophylactic and Therapeutic Fasciotomy for Acute Compartment Syndrome after Revascularization for Acute Lower Limb Ischemia - Renal and Wound Outcomes

OBJECTIVES

Acute Compartment Syndrome (ACS) is a significant complication after revascularization for Acute Lower Limb Ischemia (ALI). High risk patients sometimes undergo prophylactic fasciotomy (PF) to prevent ACS. Patients that develop ACS undergo therapeutic fasciotomy (TF). The optimal timing of fasciotomy has been debated. The aim of this study was to describe and compare renal and wound outcomes in patients undergoing PF and TF.

METHODS

A retrospective cohort study including 76 patients undergoing PF (n=40) or TF (n=36) after revascularization for ALI between 2006 and 2018. Estimated Glomerular Filtration Rate (e-GFR) was used to evaluate renal function and compare within (paired-samples t-test) and between (ANOVA) groups. Wound complications and healing time were compiled from the complete wound healing period and compared between groups with Pearson's chi²- and log-rank test, respectively.

RESULTS

E-GFR improved over the in-hospital period with 8.2ml/min/1.73m² (95% CI 2.4-14.1, p=0.007) in the PF group and 4.4ml/min/1.73m² (95% CI 1.2-7.7, p=0.010) in the TF group, with no significant difference between the two groups (0.3ml/min/1.73m², 95% CI -6.7-7.4, p=0.93). The rate of wound infections was higher after TF (PF=60.6 % and TF=82.4 %, p=0.048), whereas rate of other wound complications (PF=61.3 % and TF=35.3%, p=0.036) was higher after PF.

CONCLUSION

Overall wound complications were high, whereas renal function improved during in-hospital stay. A more conservative approach to fasciotomy could avoid unnecessary fasciotomies and reduce wound complications, while have the potential to sufficiently preserve renal function if fasciotomy is needed for ACS. This would be possible and safe if an early diagnosis and treatment of ACS can be ensured.

Poor Outcomes of Pediatric Acute Compartment Syndrome in the Setting of Extracorporeal Membrane Oxygenation: A Multicenter Case Series

BACKGROUND

Acute compartment syndrome (ACS) is a well-described condition that merits emergent surgical decompression. Peripheral arterial cannulation can increase the likelihood of ACS in patients requiring extracorporeal membranous oxygen (ECMO). Comorbidities in these critically ill patients may portend negative consequences of decompressive fasciotomy. This study investigated the clinical short-term and mid-term outcomes in pediatric patients with ECMO-associated ACS.

METHODS

This is a retrospective case series at 3 pediatric hospitals from 2006 to 2019, including children ages 0 to 19 years who underwent peripheral arterial cannulation and developed ACS.

RESULTS

Eighteen patients developed ACS after receiving peripheral cannulation ECMO. Mean time to diagnosis after cannulation was 63.1 hours. All patients were diagnosed clinically; the most common findings were tight compartments, swelling, and loss of peripheral pulses. Eight patients (44%) died due to underlying illness. Treating physicians decided against decompression for 5 patients due to their underlying illness, instability, and concern for infection. Thirteen patients (72%) underwent decompressive fasciotomies. Ten surgical patients required subsequent surgeries and 6 (33%) developed surgical site infections. Of the 7 surviving surgical patients, 4 (57%) required extremity amputations and 4 had lower extremity neurological deficits on follow-up. Two of 3 nonsurgical patients (66%) had functional lower extremity motor deficits on follow-up. No surviving nonoperative patients developed infections or required amputations.

CONCLUSIONS

ACS on ECMO is associated with high rates of complications including neurologic deficits, infection, and amputation. Patients treated nonoperatively avoided complications such as infection and amputation, but had more functional neurological deficits than surgical patients. Orthopaedic surgeons should consider the high morbidity of compartment release in these critically ill patients and, with critical care teams, assess whether the potential benefits of surgery outweigh expected risks.

LEVEL OF EVIDENCE

Level IV.

Is the Presence of a Psychiatric Disorder Associated With More Aggressive Management of Compartment Syndrome?

OBJECTIVE

To determine whether pre-existing psychiatric disorder is associated with potentially unnecessary fasciotomy.

DESIGN

Retrospective cohort study.

SETTING

Academic Level-1 trauma center.

PATIENTS

All the patients with orthopaedic trauma undergoing leg fasciotomy at an academic Level I trauma center from 2006 to 2020.

INTERVENTION

Pre-existing diagnosis of psychiatric disorder.

MAIN OUTCOME MEASUREMENTS

Early primary wound closure and delayed primary wound closure.

RESULTS

In total, 116 patients were included. Twenty-seven patients (23%) had a pre-existing diagnosis of psychiatric disorder with 13 having anxiety, 14 depression, 5 bipolar disorder, and 2 ADHD. Several patients had multiple diagnoses. Fifty-one patients (44%) had early primary closure (EPC), and 65 patients (56%) had delayed primary closure. Of patients with a psychiatric disorder, 52% received EPC compared with 42% of patients without a disorder, P = 0.38. This lack of a strong association did not seem to vary across specific psychiatric conditions. After adjusting for sex, age, injury type, and substance abuse, there was still no significant association between a psychiatric disorder and EPC with an odds ratio of 1.08 (95% CI, 0.43-2.75).

CONCLUSIONS

Among patients with orthopaedic trauma undergoing emergent fasciotomy for acute compartment syndrome, a psychiatric disorder was not associated with a significantly increased rate of possibly unnecessary fasciotomy. Given the potential for a psychiatric condition to complicate the diagnosis of acute compartment syndrome, this data is somewhat reassuring; however, there remains a need for continued vigilance in treating patients with psychiatric conditions and research in this area.

LEVEL OF EVIDENCE

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

Comparison of examination techniques of anterior and posterior compartments of the leg for the diagnosis of deep vein thrombosis: A new examination technique

Objectives

Several examination techniques have been described for the diagnosis of leg deep vein thrombosis. These previously described examination techniques aim to detect muscle pain that occurs secondary to increased pressure in the posterior compartment of the leg. However, to the best of our knowledge no studies investigated the frequency of muscle pain on the anterior compartment in patients with leg deep vein thrombosis the objective of this study is to investigate the prevalence of muscle pain in the anterior compartment.

Methods

The patients who were diagnosed with acute deep vein thrombosis were included in this prospective cross-sectional study. Each patient was examined using the techniques that determine the pain on the posterior compartment as well as using the technique we described to detect muscle pain on the anterior compartment.

Results

Two hunderd forty three patients were enrolled in the study. Among those, both distal and proximal deep vein thrombosis was present in 128 (52.7%) patients. 75% of them had muscle pain in the anterior compartment.

Conclusion

The results suggested that examination of muscle pain in anterior compartment of leg in patients with both proximal and distal deep vein thrombosis can be used as an additional physical examination techniques for early diagnosis.

Intraoperative pressure monitoring of the lower leg for preventing compression-related complications associated with the lithotomy position

BACKGROUND

Several serious complications are associated with the lithotomy position, including well-leg compartment syndrome and peroneal nerve paralysis. The aims of this study were to identify risk factors for the intraoperative elevation of lower leg pressure and to evaluate the effectiveness of monitoring external pressure during surgery for preventing these complications.

METHODS

The study included 106 patients with a diagnosis of sigmoid colon or rectal cancer who underwent elective laparoscopic surgery between June 2019 and December 2020. We divided the posterior side of the lower leg into four parts (upper outside, upper inside, lower outside, lower inside) and recorded the peak pressure applied to each area at hourly intervals during surgery (called "regular points") and when the operating position was changed (e.g., by head-tilt or leg elevation; called "points after change in position"). When the pressure was observed to be higher than 50 mmHg, we adjusted the position of the leg and re-recorded the data. Data on postoperative leg-associated complications were also collected.

RESULTS

The pressure was measured at a total of 1125 points (regular, n = 620; after change of position, n = 505). The external pressure on the upper outer side of the right leg (median, 36 mmHg) was higher than that on any other area of the lower leg. The pressure increase to more than 50 mmHg was observed not only during the change of position (27.5%) but also during regular points (22.4%). Bodyweight, strong leg elevation, and low head position were identified as factors associated with increased external pressure. There have been no compression-related complications in 534 cases at our institution since the introduction of intraoperative pressure monitoring.

CONCLUSIONS

Several risk factors associated with increased external pressure on the lower leg were identified. Intraoperative pressure monitoring might help reduction of pressure-related complications, needing further and larger prospective data collections.

Early Outcomes of Complex Vascular Reconstructions in Lower Extremities Using Spiral and Panel Vein Grafts

BACKGROUND

Spiral saphenous vein grafts (SSVG) or paneled vein grafts (PVG) can be used when the diameter of the autologous great saphenous vein does not match the vessel that needs to be repaired. This study aimed to present early results of complex vascular reconstruction with SSVGs and PVGs in the lower extremities.

METHODS

From May 2019 through January 2021, 6 SSVGs and 3 PVGs were used for vascular reconstruction in 9 patients. Patient data were collected retrospectively, including age, gender, cause of vascular pathology, target vessels, concomitant injury, surgical method, additional surgical methods, and hemodynamic status. The Kaplan-Meier method was used to calculate the rate of freedom from reintervention.

RESULTS

Among these patients, 7 had trauma, 1 had graft infection, and 1 had vascular reconstruction after tumor excision. The mean duration of follow-up was 6 ± 6.6 months (range 1-19 months). The rate of freedom from reintervention for any reason was 77.8% at 1 year. Two patients underwent amputation after vascular reconstruction with patent vascular reconstructions. One of the 2 amputations was performed because of infection, and the other was due to ischemia >24 hr. The success rate of reconstruction was 100%, and the primary patency rate was 100%. The rate of limb salvage was 77.8%. There was no death, bleeding, embolism, skin ulcers, graft-related complication, or aneurysmal dilation during follow-up.

CONCLUSIONS

SSVG and PVG were associated with low infection rates and satisfactory short-term patency rates. Both 2 grafts may be good choices when there is a diameter mismatch in vascular reconstructions.

The association between intracompartmental pressure and skeletal muscle recovery after tibial diaphyseal fractures: an ambispective cohort study

BACKGROUND

Due to the special anatomy of the lower leg, tibial diaphyseal fracture causes increased intracompartmental pressure (ICP). Not only is this increased ICP the manifestation of skeletal muscle injury, but it induces further deterioration of the injury. The aim of this study was to assess the association between short-term ICP elevation and long-term skeletal muscle recovery after severe limb trauma.

METHODS

In this single-center ambispective cohort study, we retrospectively screened and recruited a cohort of tibial diaphyseal fracture patients with integrated ICP data during the early post-traumatic period, and performed a prospective observational study to evaluate their skeletal muscle recovery through long-term follow-up and MR imaging after the removal of the implants. We analyzed the association between ICP elevation and skeletal muscle recovery using statistical methods.

RESULTS

A total of 46 patients with healed fractures underwent intramedullary nail removal and MR imaging. The absolute values of the Pearson product-moment correlation coefficients between various ICP parameters and the cross-sectional area ratio (CSAR) ranged from 0.588 to 0.793, and the correlation coefficients between the ICP parameters and the average T2-weighted signal intensity ratio (T2SIR) varied from 0.566 to 0.775. Statistically significant associations were observed between the ICP parameters and the MR imaging parameters when simple linear regression analysis was performed. Among the ICP parameters, the accumulated ΔP (ΔP = diastolic blood pressure minus ICP) had the highest determination coefficient and explained 62.1% and 59.1% of the variance in CSAR and T2SIR, respectively.

CONCLUSIONS

Short-term ICP elevation was associated with long-term skeletal muscle recovery following tibial diaphyseal fracture, especially for ICP data that integrated time factors.

LEVEL OF EVIDENCE

Level 3.

Acute Exercise Induced Compartment Syndrome in an 22-Year-Old Active-Duty Man and Review of the Literature

Acute exercise induced compartment syndrome is a rare clinical diagnosis with serious long-term ramifications if not diagnosed in a timely fashion. We present a case of acute exercise induced compartment syndrome of the right lower extremity in a 22-year-old active-duty man that occurred during a physical fitness assessment. He was treated with a two incision four compartment fasciotomy, however required debridement of muscle from the anterior compartment on subsequent washouts of the wound that led to significant foot drop postoperatively. We reviewed the literature for published cases of acute exercise induced compartment syndrome and provide some information from the 47 patients identified in our review. This case highlights a unique pathology for which military providers should have a strong index of suspicion. It additionally stresses the importance of adequate hydration and musculoskeletal conditioning in the setting of military fitness assessments.

Musculoskeletal MRI of Nontraumatic Emergencies

A wide range of nontraumatic musculoskeletal conditions may require emergent or urgent management to avoid adverse clinical outcomes. These entities include bone and soft tissue infections, tissue necrosis, impending pathologic fracture or fungating tumor, and pseudoaneurysms. In this review, the magnetic resonance imaging appearance of these various entities is presented and discussed with the aim of improving radiologist and clinician recognition of the importance of key imaging findings in each case.

A Quality Improvement Project to Assess and Improve the Recognition of Compartment Syndrome by Nurses in the Orthopedic Department

Delayed recognition of compartment syndrome can result in devastating consequences such as the need for amputation or even death. Nurses are at the frontline of patient care in the orthopedic department and it is essential that they have a high index of suspicion for compartment syndrome. In this publication we describe an easily replicable project to assess and improve the understanding of the condition by nurses on trauma wards. Our project involved a questionnaire to assess the ability of nurses to recognise the key clinical features of compartment syndrome. This initial questionnaire was followed by a one-week teaching programme within the department, after which the questionnaire was repeated. Our results demonstrate that nursing staff place a disproportionate emphasis on neurovascular compromise in recognising the condition. Only just over one half (11/21) could correctly identify 'pain out of proportion to the associated injury' as the key clinical feature. Unlike pain, neurovascular compromise is a late feature of compartment syndrome and overstating its importance may potentially contribute to delayed diagnosis. Our targeted educational week dramatically improved the number of correct responses. One month after the teaching week, 83% (19/23) of nurses correctly identified pain as the most important feature in compartment syndrome. We hope that improved knowledge of compartment syndrome by nurses will help to reduce delayed recognition and adverse outcomes.

Telemedicine-guided forearm emergency decompressive fasciotomy for compartment syndrome

Introduction

We highlight the utility of telemedicine and telementoring for the management of orthopaedic emergencies using a case of forearm compartment syndrome following a penetrating trauma in a northern Inuit community in Nunavik, Quebec, Canada.

Methods & Results

As in many cases of compartment syndrome in rural settings, the patient was at a high risk of developing irreversible complications. A prompt diagnosis followed by an emergency decompressive fasciotomy was warranted. Using telemedicine and telementoring guidance, the diagnosis of compartment syndrome was made, and the patient’s volar compartment was successfully decompressed by a local emergency physician in a timely manner. Subsequently, the patient was able to be safely transferred to a level 1 trauma centre for further surgical management. This included a second-look operative exploration, irrigation and debridement, completion of volar fasciotomy and ulnar nerve decompression. No complications were seen.

Discussion

Our experience highlights two important clinical implications. First, telemedicine can be successfully implemented to facilitate clinical diagnosis of surgical emergencies in the rural setting. Second, telementoring can effectively allow surgeons to guide physicians remotely to perform emergency decompressive fasciotomy, which can help salvage the affected limb and significantly decrease the risk of debilitating complications.

Acute compartment syndrome of the lower limb following childbirth: a case report

Background

Acute compartment syndrome is a limb-threatening and occasionally life-threatening emergency that is rarely reported as a complication following childbirth. Prompt diagnosis is crucial to avoid permanent functional restriction or even the loss of the affected limb. Clinical signs and symptoms might be nonspecific, especially in the early stages; therefore, knowledge of predisposing risk factors and signs and symptoms of acute compartment syndrome is necessary to prevent long-term complications and amputation.

Case presentation

This paper presents a case of a 26-year-old primiparous Sri Lankan woman who developed acute compartment syndrome of the lower right limb following childbirth by cesarean section.

Conclusion

Acute compartment syndrome is an important differential diagnosis in the setting of sudden onset of lower limb pain following childbirth. Predisposing factors for its manifestation within an obstetric environment are augmented labor, the lithotomy position, postpartum hemorrhage, hypotension following epidural analgesia, and the use of vasoconstrictive agents. If left undiagnosed and untreated, acute compartment syndrome may cause permanent neurovascular deficit, leading to a poor functional result, tissue ischemia, limb amputation, and rhabdomyolysis. If severe, and in large compartments, it can lead to renal failure and death. Alertness and a high index of clinical suspicion for the possibility of acute compartment syndrome are required to avoid a delay in diagnosis, and intracompartmental pressure measurement can be used to confirm the diagnosis.

Fasciotomy through multiple small skin incisions for the treatment of early acute osteofascial compartment syndrome in children

BACKGROUND

The purpose of the present study is to investigate the therapeutic effect of fasciotomy through multiple small skin incisions for the treatment of early osteofascial compartment syndrome in children.

METHODS

From January 2009 to May 2017, 56 pediatric patients with early osteofascial compartment syndrome in their limbs were admitted into our department and treated with multiple small skin incisions for decompression at the early stage. The skin incisions, function, and sensation of the limbs were followed up.

RESULTS

The osteofascial compartment syndrome was diagnosed at 7.4 ± 2.1 h after injury, and then fasciotomy was performed at 1.4 ± 0.4 h later. The average procedure time of fasciotomy was 12.7 ± 4.8 min. No postoperative incision infections or neurovascular injuries were observed in all the patients. The incisions completely healed in 7-10 days with an average healing time of 8 days without secondary suture. The patients were followed up for an average of 5.1 years. No Volkmann's contractures in the injured limbs were found. The appearance, electromyography, and nerve conduction velocity of the affected limbs were not significantly different from that of the contralateral limbs. All the patients were free of symptoms and were fully recovered of sensation and function, being an "excellent" outcome at the latest follow-up.

CONCLUSION

Fasciotomy through multiple small skin incisions, which can be useful to decompress the compartment pressure with fewer complications, is a simple and effective strategy for the treatment of early osteofascial compartment syndrome in children.

Selective fasciotomy for acute traumatic lower leg compartment syndrome: is it feasible?

INTRODUCTION

The standard treatment for an acute compartment syndrome (ACS) of the lower leg is a four compartment fasciotomy. It can be performed through either one lateral or a lateral and medial incision. Selective fasciotomy, only opening the compartments with elevated pressure, is a less invasive procedure. The aim of this study was to describe a procedure of selective fasciotomy after pressure measurement and to determine its feasibility in a retrospective cohort study.

METHODS

All patients with an ACS of the lower leg due to a proximal or tibia shaft fracture (AO 41 or 42) who received either a four compartment fasciotomy or a selective fasciotomy after pressure measurement between 2006 and 2016 were included. Every compartment with an intracompartment pressure of more than 30 mmHg was opened. The primary outcome was any missed compartment syndrome after selective fasciotomy. Secondary outcomes were reoperations for completing four compartment fasciotomy and persistent sensomotoric deficits.

RESULTS

Fifty-one patients with a mean age of 43 years (6-76) were included. Of these, 41 (80%) had a selective fasciotomy. There was no missed compartment syndrome. One patient had a reoperation 8 h after primary selective fasciotomy due to ACS of the superficial and deep flexor compartment. The anterior compartment had to be released in all patients. In 67%, the release of 2 compartments was sufficient. Six patients had postoperative sensomotoric deficits at discharge with full recovery during follow-up.

CONCLUSION

Selective fasciotomy is feasible and seems to be safe. Future comparative studies will have to focus on possible benefits of this less invasive treatment.

Current Approach to the Evaluation and Management of Acute Compartment Syndrome in Pediatric Patients

Acute compartment syndrome is an emergent condition caused by increased pressure within a closed compartment. The most common etiology is fractures, but there a number of atraumatic causes cited in the literature. Acute compartment syndrome occurs most frequently in the anterior compartment of the lower leg, followed by the volar forearm. Patients may present with severe pain, pain with passive stretch, swelling, paresthesias, numbness, weakness, decreased pulses, and delayed capillary refill. No finding in isolation can exclude the diagnosis. Direct measurement of the intracompartmental pressure is the most important diagnostic test. Treatment involves removal of compressive dressings and surgical consultation for emergent fasciotomy.

Bilateral thigh compartment syndromes from extended sitting with forward bending

Alcohol consumption and subsequent sleeping in unusual positions often causes compression neuropathies. In this case, we experienced a unique case of bilateral leg palsy after sleeping in a forward bending position that was photographed by his colleague. We expected that prolonged blockage of the circulation of the femoral arteries resulted in bilateral thigh compartment syndromes (TCSs), leading to sciatic nerve damage. The muscle MRI and needle EMG support this hypothesis. A couple of similar cases have been reported, but the causes of TCS was undetermined due to lack of medical history. This case illustrates that atraumatic compartment syndrome with sciatic nerve palsy can be occurred by prolonged unusual positions.

Acute compartment syndrome of the leg due to infection following an insect bite: A case report

RATIONALE

Acute compartment syndrome is a highly aggressive condition, which needs rapid diagnosis and surgical emergency. Most cases are caused by trauma, fractures, surgeries, or vascular injury, while other causes are easily misdiagnosed.

PATIENTS CONCERNS

A 29-year-old female, with a medical history of an insect bite on the left calf but not recent trauma, was admitted to the hospital due to the swelling and pain around the bite area.

DIAGNOSES

Acute compartment syndrome of the lower leg.

INTERVENTIONS

After admission, she developed septic shock symptoms, given intravenous antibiotics treatments. However, the condition worsened with increasing pain, loss of sensation, tense swelling, and severe pain to any stretch of the tissues. Thus the patient received fasciotomy followed by repeat and thorough debridement. After the wounds healed completely, systematic rehabilitation was performed for three weeks.

OUTCOMES

After three months of follow-up, the patient is able to walk, and moves up and down the stairs, independently.

LESSONS

Our case highlights the possibility of acute compartment syndrome caused by insect bites when the patient presents with the signs of the condition, and the importance of earlier rehabilitation interventions to improve the functional outcome post operation.

Upper Extremity Compartment Syndrome in a Patient with Acute Gout Attack but without Trauma or Other Typical Causes

We report the case of a 30-year-old Polynesian male with a severe gout flare of multiple joints and simultaneous acute compartment syndrome (ACS) of his right forearm and hand without trauma or other typical causes. He had a long history of gout flares, but none were known to be associated with compartment syndrome. He also had concurrent infections in his right elbow joint and olecranon bursa. A few days prior to this episode of ACS, high pain and swelling occurred in his right upper extremity after a minimal workout with light weights. A similar episode occurred seven months prior and was attributed to a gout flare. Unlike past flares that resolved with colchicine and/or anti-inflammatory medications, his current upper extremity pain/swelling worsened and became severe. Hand and forearm fasciotomies were performed. Workup included general medicine, rheumatology and infectious disease consultations, myriad blood tests, and imaging studies including Doppler ultrasound and CT angiography. Additional clinical history suggested that he had previously unrecognized recurrent exertional compartment syndrome that led to the episode of ACS reported here. Chronic exertional compartment syndrome (CECS) presents a difficult diagnosis when presented with multiple symptoms concurrently. This case provides an example of one such diagnosis.

Is external fixation needed for the treatment of tibial fractures with acute compartment syndrome?

Acute compartment syndrome (ACS) after tibial fracture carries a risk of various complications, including infection, delayed union, nonunion, nerve damage, and poor prognosis. For the treatment of fractures with ACS, fasciotomy is conducted, and the method to stabilise the fracture has to be considered. Thirty-five patients who underwent surgery for ACS with tibial shaft fractures were evaluated, and the results of initial internal fixation (Group I, 20 patients) and initial external fixation (Group II, 15 patients) were analysed. The mean age was 41 years. Five patients needed additional surgery for bone union. Complications occurred in 4 cases, but no deep infection was reported. The time to bone union, the need for additional surgery, and the incidence of complications in Group I and Group II were not statistically different. For the treatment of ACS with tibial fracture, immediate internal fixation and changing from external fixation to internal fixation did not affect the clinical course.

Phonomyography as a non-invasive continuous monitoring technique for muscle ischemia in an experimental model of acute compartment syndrome

BACKGROUND

In acute compartment syndrome (ACS), clinicians have difficulty diagnosing muscle ischemia provoked by increased intra-compartmental pressure in a timely and non-invasive manner. Phonomyography records the acoustic signal produced by muscle contraction. We hypothesize that alterations in muscle contraction caused by muscle ischemia can be detected with phonomyography, serving as a potential non-invasive technique in the detection of ACS.

METHODS

The left hind limb of 15 Sprague-Dawley rats was submitted to a reversible ischemic model of limb injury for 30min and 1, 2, 4, 6h (3 rats in each group). The right limb served as control. Phonomyography microphones were placed over the posterior calf of both limbs and the sciatic nerve was stimulated percutaneously at 10-min intervals to evaluate muscle contraction. Histopathological analysis of muscles and nerves biopsies was performed and correlation was made between duration of injury, phonomyography output and degree of muscle and nerve necrosis.

RESULTS

There was a statistically significant decrease in the phonomyography signal output in the ischemic limb that correlated with the duration of ischemia and histological findings of muscle and nerve necrosis. The phonomyography signal decrease and histological findings were respectively: 55.5% (n=15;p=0.005) with rare muscle and nerve necrosis at 30min, 65.6% (n=12;p=0.005) with 5-10% muscle necrosis at 1h, 68.4% (n=9;p=0.015) with 100% muscle necrosis and little nerve damage at 2h, 72.4% (n=6;p=0.028) with 100% muscle necrosis and severe nerve damage at 4h, and 92.8% (n=3;p=0.109) with 100% muscle necrosis and severe nerve degeneration at 6h.

CONCLUSION

Changes in phonomyography signal are observed in early ischemic injury prior to the onset of nerve or muscle necrosis. Therefore, phonomyography could serve as a non-invasive technique to detect early ischemic muscle changes in acute compartment syndrome.

CLINICAL RELEVANCE

The detection of abnormal muscle contraction in a timely fashion and non-invasive manner is of interest in clinical settings where the presence of ischemia is not easy to diagnose.

A pilot study of surgical telementoring for leg fasciotomy

INTRODUCTION

Acute extremity compartment syndrome requires rapid decompression. In remote locations, distance, weather and logistics may delay the evacuation of patients with extremity trauma beyond the desired timeline for compartment release. The aim of this study was to establish the feasibility of performing telementored surgery for leg compartment release and to identify methodological issues relevant for future research.

METHODS

Three anaethetists and one critical care physician were recruited as operators. They were directed to perform a two-incision leg fasciotomy on a Thiel-embalmed cadaver under the guidance of a remotely located orthopaedic surgeon. The operating physician and the surgeon (mentor) were connected through software that allows for real-time supervision and the use of a virtual pointer overlaid onto the surgical field. Two experienced orthopaedic traumatologists independently assessed the adequacy of compartment decompression and the presence of iatrogenic complications.

RESULTS

14 of 16 compartments (in four leg specimens) were felt to have been completely released. The first evaluator considered that the deep posterior compartment was incompletely released in two specimens. The second evaluator considered that the superficial posterior compartment was incompletely released in two specimens. The only complication was a large laceration of the soleus muscle that occurred during a period of blurred video signal attributed to a drop in bandwidth.

CONCLUSIONS

This study suggests that surgical telementoring may enable physicians to safely perform two-incision leg fasciotomy in remote environments. This could improve the chances of limb salvage when compartment syndrome occurs far from surgical care. We found interobserver variation in the assessment of compartment release, which should be considered in the design of future research protocols.

Exercise-Induced Acute Bilateral Upper-Arm Compartment Syndrome

We present a rare case of acute exercise-induced bilateral upper-arm compartment syndrome in a patient who, after a year-long hiatus from exercise, subjected his upper-extremities to the stress of over 100 pushups. The patient presented with severe pain of the bilateral biceps and triceps and complaints of dark urine. Decompressive fasciotomy was performed followed by an intensive care unit (ICU) stay for associated myoglobinuria secondary to rhabdomyolysis. The patient suffered no long-term sequelae as a result of his conditions and recovered full function of the bilateral upper-extremities. Albeit rare, acute exercise-induced compartment syndrome should be considered as a diagnosis following unaccustomed bouts of exercise.

Assessment of Malpractice Claims Associated With Acute Compartment Syndrome

BACKGROUND

Because acute compartment syndrome is one of the few limb-threatening and life-threatening orthopaedic conditions and is difficult to diagnose, it is a frequent source of litigation. Understanding the factors that lead to plaintiff verdicts and higher indemnity payments may improve patient care by identifying common pitfalls.

METHODS

The VerdictSearch legal claims database was queried for the term "compartment syndrome." After 46 cases were excluded for missing information or irrelevancy, 139 cases were reviewed. The effects of plaintiff demographics, mechanism of injury, and complications were assessed.

RESULTS

Of 139 cases, 37 (27%) were settled, 69 (50%) resulted in a defendant ruling, and 33 (24%) resulted in a plaintiff ruling. Juries were more likely to rule in favor of juvenile plaintiffs than adult patients (P = 0.002) and female plaintiffs than male plaintiffs (P = 0.008), but indemnity payments were not affected by the age or sex of the plaintiff. Plaintiffs who experienced acute compartment syndrome as a complication of surgery were more likely to win their suit and receive higher awards (P < 0.05), compared with those in whom the condition developed as a result of trauma. Amputation or delay in diagnosis or treatment did not affect plaintiff verdicts or awards.

CONCLUSION

Defendants were more likely to lose a lawsuit concerning the management of acute compartment syndrome if the patient was a woman or child or if acute compartment syndrome developed as a complication of a surgical procedure.