Management of Mangled Extremities and Orthopaedic War Injuries

One Year of Experience in the Orthopaedic and Trauma Surgical Care of War Refugees and Soldiers from Ukraine in a Maximum Care Trauma Centre

According to the United Nations, around 8,400 people have been injured and over 5,800 killed on the Ukrainian side in the Ukraine war, which has been going on for over 14 months. Extensive humanitarian aid operations were carried out to support Ukraine, so that war-wounded people from Ukraine were also cared for in Germany. In a retrospective cohort study, 10 patients were examined who were treated in the department between February 24th 2022 and February 24th 2023, using the cloverleaf system from Ukraine.The average duration of inpatient treatment was 53.10 days. The average ISS was 23.7. The patients were operated on an average of 3.3 times in our institution. All patients received consultative psychological care. All patients were initially put into protective isolation until the results of a corona test and microbiological swabs were available. After preliminary protective isolation, further isolation had to be carried out in 5 cases due to germs requiring isolation. Eight patients were released to state accommodation. Three patients were transferred back to Ukraine at their own request.The treatment of war-injured patients from Ukraine represents a particular challenge. It absolutely requires an interdisciplinary treatment concept that, in addition to special trauma surgery and orthopaedic expertise, also requires plastic-reconstructive, microbiological and, last but not least, psychological care. Due to the high rate of infections requiring isolation, long, costly therapy with multiple revision operations is often necessary.

[Esthetic reconstruction of traumatic defects by plastic surgery]

INTRODUCTION

The primary goal is preservation of the affected extremity, which can be associated with limitations in tasks relevant for daily life and a distorted body image caused by the original trauma. Therefore, a secondary goal is to reduce the trauma sequelae.

RESULTS

For an esthetic outcome the choice of flap surgery is crucial. Factors such as tissue thickness, skin color, and hair covering need to be considered. The flap should blend seamlessly with the tissue surrounding the defect. The localization and closure of the defect are also important. The flaps undergo vascular, lymphatic and trophic postoperative changes caused by the so-called autonomization. Measures, such as compression therapy reshape the microcirculation and result in volume reduction of the transplant. It is important to preoperatively educate patients about this process. After completion of the conditioning surgical thinning procedures are available for persistent unattractive results, e.g., open surgical and liposuction techniques.

CONCLUSION

Microsurgical defect coverage of traumatic skin and soft tissue defects is a compromise between limb preservation and functionality. In cases of missing local soft tissue, secure closure of the defect should be prioritized but initial esthetic considerations should also influence the choice of tissue transplant. Patients should be informed early about the development of the flap surgery and undergo postoperative compression therapy for conditioning. Secondary operative corrections are also possible.

What is the Case Volume of Orthopaedic Trauma Surgeons in the Military Health System? An Assessment of Wartime Readiness and Skills Sustainment

INTRODUCTION

Complex, high-energy extremity trauma secondary to explosive mechanisms has been increasingly common in modern warfare, accounting for a majority of combat wounds throughout the conflicts in Iraq and Afghanistan. Fellowship-trained orthopaedic trauma surgeons treated many of these complex injuries; however, as the number of casualties continue to decrease during a period of relative peace, a growing concern over maintaining military trauma readiness exists.

METHODS

The Military Health System Data Repository was queried for all Common Procedural Terminology (CPT) codes associated with 18 fellowship-trained orthopaedic trauma surgeons from 2013 to 2019. The codes were further analyzed and categorized based on common trauma subspecialty procedures such as fracture fixation of the pelvic ring, acetabulum, upper and lower extremity, peri-articular, and nonunion/malunion surgery. We used descriptive statistics to quantify both the average number of cases per surgeon per year in each of the subcategories and case volume among Military Treatment Facilities (MTFs) during the study period.

RESULTS

We identified 7,769 CPT codes for surgical procedures throughout the study period. The most common surgical procedures performed were: removal of implant (n = 836, 11%), knee arthroscopy (n = 507, 7%), and debridement of devitalized tissue (n = 345, 4%). The total trauma subspecialty procedural codes and average cases per surgeon per year were as follows: pelvic ring (n = 54, <1 case/year), acetabulum (n = 90, 1 case/year), upper extremity (n = 1,314, 15 cases/year), lower extremity (n = 2,286, 25 cases/year), peri-articular (n = 675, 8 cases/year), and nonunion/malunion (n = 288, 3 cases/year). San Antonio Military Medical Center (SAMMC) accounted for the most fracture-related CPT codes overall (35%), while all other MTFs contributed approximately 10% or less of all fracture-related codes.

CONCLUSIONS

These results highlight the lack of orthopaedic trauma volume at other MTFs outside of SAMMC, raising concern for maintaining military readiness during an inter-war period of relative peace. The DoD continues to make concerted efforts to maintain readiness through civilian partnerships and subsequently increase surgical case volume for military trauma surgeons. Future efforts should include an in-depth analysis of caseloads of military trauma surgeons providing care at both MTFs and civilian institutions to optimize preparedness in future conflicts.

Transcutaneous osseointegration for amputees

Transcutaneous osseointegration for amputees (TOFA) is an evolving technology that has the potential to revolutionize the interface between the amputee and their prosthesis, showing potential at many levels of amputation. While no amputation is without its challenges, TOFA requires a highly specialized prosthesis and a multidisciplinary team that includes specialized surgeons, physical therapists, wound care teams, and social workers who guide the amputee through surgery, postoperative rehabilitation, and the chronic wound care that goes into maintaining the prosthesis. The infrastructure required to facilitate care pathways that lead to reliable, successful outcomes are unique in each health care setting, including those in advanced health care systems such as the United States and Australia. This article details the emerging evidence supporting the use of this prosthetic interface design and many of the challenges that providers face when establishing programs to offer this type of care in the United States.

Neglected war injuries: Reconstruction versus amputation

INTRODUCTION

War injuries are remarkably different situations with profound severity and significant contamination compared to civilian injuries. Delayed definitive management makes the situation much more complicated. This study aimed to report the outcomes of limb reconstruction of neglected war injuries with a previous decision of amputation.

PATIENTS AND METHODS

From 2010 to 2021, 1104 patients with war-related fractures from conflict-zone countries were referred to our center including 589 open tibial fractures. Of these tibial fractures, amputation had already been decided in 54 cases, and the patients were looking for a trial of reconstruction and avoiding amputation. These cases were included in the current study. The treatment approach was a single-stage procedure with bone and soft tissue reconstruction.

RESULTS

This study included 54 male patients with a mean age of 26.3 years. Infection was the predominant feature in 43 cases (79.6 %). CT angiography revealed a one-vessel limb in 17 patients. Peripheral nerve injuries affected 15 patients. The mean time from injury to presentation was 8.5 weeks. The bone gap (2-13 cm) was evident in 44 cases. In four cases, the contralateral limb was amputated below the knee. There were associated injuries in nine cases. Rotational flap coverage was done in the same setting for 19 legs. Gastrocnemius flap was done in two cases. The mean follow-up duration was 45.1 months. The treatment methods included bifocal management (33 cases), trifocal management (17 cases), fibular transfer (two cases), and a mono-focal approach in two cases. All fractures healed successfully. The mean external fixation period was 7.6 months. Recurrence of infection occurred in three patients. A non-displaced refracture developed in one case. Five cases had a residual angular deformity. Eventually, the ASAMI bone and functional results were good in all cases.

CONCLUSIONS

Neglected war injuries constitute a complex problem where amputation may be indicated. Our approach includes one-stage limb reconstruction with the corticotomy-first technique, conservative debridement of the docking site, concomitant osteoplastic procedure, and gradual distraction to tackle all the aspects of the problem. The good results obtained in the presented series make it a valid approach to avoid amputation in neglected war injuries.

A Longitudinal Perspective on Conversion to Amputation for Combat-Related Extremity Injuries Treated With Flap-Based Limb Salvage

OBJECTIVES

To define the rate and primary drivers behind early and late amputation after flap-based limb salvage in the setting of combat extremity trauma.

DESIGN

Retrospective review.

SETTING

Level II trauma center.

PATIENTS

307 (303 men, 4 women) patients who underwent flap-based limb salvage treatment between 2003 and 2014.

INTERVENTION

We reviewed patient medical records, radiographs, and clinical photographs.

MAIN OUTCOME MEASUREMENTS

Early and late amputation rates, time to amputation, reason for amputation.

RESULTS

307 patients accounted for 323 limbs that underwent flap-based limb salvage treatment (187 lower extremities, 136 upper extremities). A total of 58 extremities (18%) initially treated with flap-based limb salvage ultimately underwent amputation at a median of 480 days (IQR, 285-715 days) from injury. Periarticular fractures and lower extremity injuries were risk factors for early and late amputation. Other independent risk factors for early amputation were flap complications and vascular injuries, whereas risk factors for late amputation were fractures that went on to nonunion.

CONCLUSIONS

This study highlights that a subset of patients ultimately require major limb amputation despite having achieved what is initially considered "successful" limb salvage. Flap-related complications, vascular injury, and lower extremity site of injury were associated with early amputation after successful expeditionary efforts at limb preservation. Conversion to late amputation was associated with lower extremity periarticular fractures and fracture nonunion. Chronic pain and persistent limb dysfunction were the most common reasons for late amputation.

LEVEL OF EVIDENCE

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Beyond Limb Salvage: Limb Restoration Efforts Following Remote Combat-Related Extremity Injuries Optimize Outcomes and Support Sustained Surgical Readiness

INTRODUCTION

As the combat operational tempo of the military conflicts in Iraq and Afghanistan has declined over the last decade, there has been a decrease in the number of patients requiring acute limb salvage. In their place, a growing population of patients with persistent functional deficits, pain, and inadequate soft tissue coverage stemming from prior limb salvage strategies have returned to our institution seeking revision surgery. Herein, we examine our institution's evolving surgical approach to extremity reconstruction from 2011 through 2019, culminating in the development of our limb restoration concept. We also discuss the impact of this orthoplastic approach on the acute management of complex extremity trauma and its role in providing sustained surgical readiness during interwar years.

MATERIALS AND METHODS

We retrospectively reviewed all limb reconstructive procedures performed at our tertiary care military treatment facility between September 1, 2011 to December 31, 2019 to characterize the trends in extremity reconstruction procedures performed at our institution. Cases were identified as limb restoration procedures if they involved secondary/revision reconstructive procedures designed to optimize function, treat pain, or improve the durability of the injured extremity following initial reconstruction efforts.

RESULTS

Nearly 500 limb restoration procedures were performed during the study period. These procedures steadily increased since 2011, reaching a maximum of 120 in 2018. Orthoplastic procedures such as osseointegration, targeted muscle reinnervation, regenerative peripheral nerve interface, agonist-antagonist myoneural interface, and soft tissue resurfacing flap reconstruction accounted for the rise in secondary/revision reconstruction performed during this time period.

CONCLUSION

Limb restoration is a collaborative orthoplastic approach that utilizes state-of-the-art surgical techniques for treating complex extremity trauma. Although limb restoration originally developed in response to managing the long-term sequelae of combat extremity trauma, the concept can be adapted to the acute management setting. Moreover, limb restoration provides military surgeons with a means for maintaining critical war-time surgical skills during the current low casualty rate era. Level of Evidence: V, therapeutic.

No implant, no solution, lost cases to surgery: orthopedic trauma triage for surgery in an NGO hospital in Sierra Leone

INTRODUCTION

In low-income countries (LIC), international surgeons face the fact that there are patients they cannot treat. The goal of this study was to identify and analyze patients lost to treatment.

MATERIAL AND METHODS

We analyzed retrospectively the data of 282 trauma victims from a non-governmental organizational (NGO) hospital in Sierra Leone, Africa. During a 3-month period (10.10.2015-08.01.2016), these patients had 367 injuries and underwent 263 orthopedic surgeries. Despite a clear indication, some patients did not receive surgical treatment. We identified these injuries and the reason why they could not be operated. The anatomic region of the injury was evaluated and if they had a bone or soft tissue defect or were infected.

RESULTS

We identified 95 (25.89%) injuries in 70 patients (47 males; 23 females) that were not be operated. The reasons were lack of specific implants (no implant group; N = 33), no treatment strategy for the injury (no solution group; N = 29), and patients that were lost (lost patient group; N = 33), almost equally distributed by 1/3. In the no implant group were mainly closed fractures and fractures of the pelvis and the proximal femur. The implants needed were locking plates (N = 19), proximal femoral nails (N = 8), and implants for pelvic surgery (N = 6). In the no solution group were nearly all bone (P < 0.0000), soft tissue defects (P < 0.00001) and infections (P = 0.00003) compared to the rest and more open fractures (P < 0.00001). In the lost patients group, most fractures were closed (24 out of 33, P = 0.033). These fractures were mostly not urgent and were postponed repeatedly.

CONCLUSION

One quarter of the patients did not receive the surgical treatment needed. Besides acquisition of implants, surgical skills and expertise could be a solution for this issue. Nevertheless, these skills must be passed to local surgeons.

Mangled extremity- Modern concepts in treatment

A mangled extremity is the most devastating limb injury and presents a challenge for the orthopedic surgeon. There are two main treatment options, reconstruction or amputation, but sometimes indications for either are not clear. There are many pro and contra arguments for both options. To make the decision easier numerous score systems have been introduced, but the final decision is based on the judgment and experience of the treating surgeon. Early extremity reconstruction appears to give better results than delayed or late reconstruction and should be the treatment of choice where possible. The goal in reconstruction of a lower extremity is to restore and maintain balance and ambulation, while restoration of an upper extremity's numerous functions is more demanding. In this paper the authors describe and suggest treatment approaches in patients with a severely mangled extremity, including assessment and treatment of all injured tissues, using defined protocols, with special attention to bone stabilization, revascularization, soft-tissue coverage and nerve reconstruction. These have a great impact on the outcome and function of the injured extremity. Rehabilitation and return to the preinjury level is slow and sometimes uncertain.

Internal Fixation Construct and Defect Size Affect Healing of a Translational Porcine Diaphyseal Tibial Segmental Bone Defect

BACKGROUND AND OBJECTIVE

Porcine translational models have become the gold-standard translational tool to study the effects of major injury and hemorrhagic shock because of their similarity to the human immunologic response to trauma. Segmental bone defects (SBDs) typically occur in warfighters with associated severe limb trauma. The purpose of this study was to develop a translational porcine diaphyseal SBD model in Yucatan minipigs (YMPs), which could be used in bone healing investigations that simulate injury-relevant conditions. We were specifically working toward developing a critical sized defect (CSD).

METHODS

We used an adaptive experimental design in which both 25.0 mm and 40.0 mm SBDs were created in the tibial mid-diaphysis in skeletally mature YMPs. Initially, eight YMPs were subjected to a 25.0 mm SBD and treated with intramedullary nailing (intramedullary nail [IMN] 25mm). Due to unanticipated wound problems, we subsequently treated four specimens with identical 25.0 mm defect with dual plating (open reduction with internal fixation [ORIF] 25mm). Finally, a third group of four YMPs with 40.0 mm defects were treated with dual plating (ORIF 40mm). Monthly radiographs were made until sacrifice. Modified Radiographic Union Score for Tibia fractures (mRUST) measurements were made by three trauma-trained orthopedic surgeons. CT scans of the tibias were used to verify the union results.

RESULTS

At 4 months post-surgery, mean mRUST scores were 11.7 (SD ± 1.8) in the ORIF 25mm YMPs vs. 8.5 (SD  ± 1.4) in the IMN 25mm YMPs (P < .0001). All four ORIF 25mm YMPs were clinically healed. In contrast, none of the IMN 25mm YMPs were clinically healed and seven of eight IMN 25mm YMPs developed delayed wound breakdown. All four of the ORIF 40mm YMPs had flail nonunions with complete hardware failure by 3 months after surgery and were sacrificed early. CT scanning confirmed that none of the IMN 25mm YMPs, none of the ORIF 40mm YMPs, and two of four ORIF 25mm YMPs were healed. A third ORIF 25mm specimen was nearly healed on CT scanning. Inter-rater and intra-rater reliability interclass coefficients using the mRUST scale were 0.81 and 0.80, respectively.

CONCLUSIONS

YMPs that had a 40 mm segment of bone removed from their tibia and were treated with dual plating did not heal and could be used to investigate interventions that accelerate bone healing. In contrast, a 25 mm SBD treated with dual plating demonstrated delayed but successful healing, indicating it can potentially be used to investigate bone healing adjuncts or conversely how concomitant injuries may impair bone healing. Pigs treated with IMN failed to heal and developed consistent delayed wound breakdown presumably secondary to chronic limb instability. The porcine YMP SBD model has the potential to be an effective translational tool to investigate bone healing under physiologically relevant injury conditions.

Bone Morphogenetic Protein-2 Rapidly Heals Two Distinct Critical Sized Segmental Diaphyseal Bone Defects in a Porcine Model

INTRODUCTION

Segmental bone defects (SBDs) are devastating injuries sustained by warfighters and are difficult to heal. Preclinical models that accurately simulate human conditions are necessary to investigate therapies to treat SBDs. We have developed two novel porcine SBD models that take advantage of similarities in bone healing and immunologic response to injury between pigs and humans. The purpose of this study was to investigate the efficacy of Bone Morphogenetic Protein-2 (BMP-2) to heal a critical sized defect (CSD) in two novel porcine SBD models.

MATERIALS AND METHODS

Two CSDs were performed in Yucatan Minipigs including a 25.0-mm SBD treated with intramedullary nailing (IMN) and a 40.0-mm SBD treated with dual plating (ORIF). In control animals, the defect was filled with a custom spacer and a bovine collagen sponge impregnated with saline (IMN25 Cont, n = 8; ORIF40 Cont, n = 4). In experimental animals, the SBD was filled with a custom spacer and a bovine collage sponge impregnated with human recombinant BMP-2 (IMN25 BMP, n = 8; ORIF40 BMP, n = 4). Healing was quantified using monthly modified Radiographic Union Score for Tibia Fractures (mRUST) scores, postmortem CT scanning, and torsion testing.

RESULTS

BMP-2 restored bone healing in all eight IMN25 BMP specimens and three of four ORIF40 BMP specimens. None of the IMN25 Cont or ORIF40 Cont specimens healed. mRUST scores at the time of sacrifice increased from 9.2 (±2.4) in IMN25 Cont to 15.1 (±1.0) in IMN25 BMP specimens (P < .0001). mRUST scores increased from 8.2 (±1.1) in ORIF40 Cont to 14.3 (±1.0) in ORIF40 BMP specimens (P < .01). CT scans confirmed all BMP-2 specimens had healed and none of the control specimens had healed in both IMN and ORIF groups. BMP-2 restored 114% and 93% of intact torsional stiffness in IMN25 BMP and ORIF40 BMP specimens.

CONCLUSIONS

We have developed two porcine CSD models, including fixation with IMN and with dual-plate fixation. Porcine models are particularly relevant for SBD research as the porcine immunologic response to injury closely mimics the human response. BMP-2 restored healing in both CSD models, and the effects were evident within the first month after injury. These findings support the use of both porcine CSD models to investigate new therapies to heal SBDs.

Better be prepared: the spectrum of neuropsychiatric impairment among Libyan war victims transferred to Germany for trauma rehabilitation

Background

The current Libyan civil war has originated many casualties, imposing medical challenges. War injuries are complex, requiring specialized knowledge and interdisciplinary assessment for adequate patient and intercultural management.

Methods

This retrospective study analyzed records of 78 Libyan patients admitted from July 2016 to November 2017 to neurological and trauma surgical departments of Krankenhaus Nordwest, Frankfurt, Germany. Issues of system preparation of the hospital, demographics, injury patterns and therapies were analyzed. The chi-squared test was used to analyze differences in injury patterns in explosion and gunshot injuries.

Results

Seventy-seven of seventy-eight patients were male (mean age 30.6 years). The patients received primary and secondary treatment in Tunisia (n = 39), Libya (n = 36) and Turkey (n = 23). Forty-eight patients had gunshot injuries, 37 explosion injuries, 11 both. Preparation for management of injuries included hygienic and isolation protocols, organization of interpreters and intercultural training. Patients presented with a broad variety of neurological, psychiatric and trauma surgical injuries. Fifty-six patients had sensory, 47 motor deficits. Nine reported headache, 5 vertigo, 13 visual impairment, 28 psychiatric symptoms. Eighteen patients had central nervous damage, 50 peripheral nervous damage. Central nervous damage was significantly more common in gunshot than explosion injuries (p = 0.015). Peripheral nervous damage was more common in explosion than gunshot injuries (p < 0.1). Fifty-one patients had polytrauma and 49 suffered from fractures. Therapy included surgical interventions (n = 56) and physiotherapy. Structured rehabilitation programs were often indicated.

Conclusion

Specialized knowledge about war injuries and their management including hospital preparation and planning regarding infrastructure may be required anytime. Injuries include a broad variety of neurological, psychiatric and trauma surgical injuries. Therefore, an interdisciplinary approach is crucial.

Osseointegration for Amputees: Current Implants, Techniques, and Future Directions

Osseointegrated prostheses provide a rehabilitation option for amputees offering greater mobility, better satisfaction, and higher use than traditional socket prostheses. There are several different osseointegrated implant designs, surgical techniques, and rehabilitation protocols with their own strengths and limitations. The 2 most prominent risks, infection and periprosthetic fracture, do not seem unacceptably frequent or insurmountable. Proximal amputations or situations leading to reduced mobility are exceptionally infrequent. Osseointegrated implants can be attached to advanced sensory and motor prostheses.

Plastic Surgery at War: A Scoping Review of Current Conflicts

INTRODUCTION

The scope of military plastic surgery and location where care is provided has evolved with each major conflict. To help inform plastic surgeon utilization in future conflicts, we conducted a review of military plastic surgery-related studies to characterize plastic surgeon contributions during recent military operations.

MATERIALS AND METHODS

Using a scoping review design, we searched electronic databases to identify articles published since September 1, 2001 related to military plastic surgery according to a defined search criterion. Next, we screened all abstracts for appropriateness based on pre-established inclusion/exclusion criteria. Finally, we reviewed the remaining full-text articles to describe the nature of care provided and the operational level at which care was delivered.

RESULTS

The final sample included 55 studies with most originating in the United States (54.5%) between 2005 and 2019 and were either retrospective cohort studies (81.8%) or case series (10.9%). The breadth of care included management of significant upper/lower extremity injuries (40%), general reconstructive and wound care (36.4%), and craniofacial surgery (16.4%). Microsurgical reconstruction was a primary focus in 40.0% of published articles. When specified, most care was described at Role 3 (25.5%) or Roles 4/5 facilities (62.8%) with temporizing measures more common at Role 3 and definite reconstruction at Roles 4/5. Several lessons learned were identified that held commonality across plastic surgery domain.

CONCLUSIONS

Plastic surgeons continue to play a critical role in the management of wounded service members, particularly for complex extremity reconstruction, craniofacial trauma, and general expertise on wound management. Future efforts should evaluate mechanisms to maintain these skill sets among military plastic surgeons.