Principles of Orthoplastic Surgery for Lower Extremity Reconstruction: Why Is This Important?

The Godina Principle in the 21st Century: Free Flap Timing after Isolated Lower Extremity Trauma in a Retrospective National Cohort

BACKGROUND

 The timing of free flap reconstruction after lower extremity trauma has been a controversial debate since Marko Godina's original 72-hour recommendation. Recent advances in microsurgery warrant an evaluation of the optimal time to reconstruction.

METHODS

 The Nationwide Readmission Database (2014-2019) was used to identify patients undergoing free flap reconstruction after lower extremity trauma. Risk-adjusted statistical methods were used to identify optimal time where risk of infectious and microsurgical complications increase and to quantify the risk associated with time delays.

RESULTS

 A total of 1,030 patients undergoing reconstruction were identified. The mean time to flap coverage was 24.3 days. Thirty-three percent were performed within 72 hours, 24% from 72 hours to 10 days, 18% from 10 to 30 days, and 24% after 30 days. Flaps performed after 10 days were associated with increased risk of surgical site infection, osteomyelitis, and other wound complications, compared with those performed within 72 hours. There was no increased risk in the period of 72 hours to 10 days. Revision amputation and microsurgical complications were not increased after 10 days. The predicted optimal cutoff was 9.5 days for microsurgical complications and 14.5 days for infectious complications.

CONCLUSION

 Advances in microsurgery may be responsible for extending the time in which definitive soft tissue coverage is required for wounds resulting from lower extremity trauma. Although it appears the original 72-hour time window can be safely extended, efforts should be made to refer patients to specialty limb salvage centers in a timely fashion.

Establishing a Collaborative Orthoplastic Approach for the Management of Primary Musculoskeletal Neoplasms: An 8-year Case Series

Orthoplastic surgery is a multidisciplinary approach that is well-studied for extremity trauma, but not for musculoskeletal oncologic reconstruction. Here, the authors describe the application of a collaborative orthoplastic approach for the management of primary musculoskeletal neoplasms and evaluate its impact. The collaboration protocol, implemented in July 2019, comprises specific checkpoints of interdisciplinary co-management, which span the pre-, intra-, and postoperative treatment period. This involves direct communication between attending surgeons and their respective clinical teams. Patients who underwent resection of a primary musculoskeletal neoplasm between March 2014 and April 2022 were retrospectively categorized into conventional or collaboration groups. Of the 136 total patients, there were 63.2% (n = 86) conventional and 36.8% (n = 50) collaboration; 31.6% (n = 43) had reconstruction and 68.4% (n = 93) did not. Compared with the conventional group, the collaboration group had significantly higher rates of diabetes (18% versus 7%, P = 0.048) and radiation treatment (68% versus 43%, P = 0.005). The collaboration group was significantly more likely to have plastic surgery involvement in their care than the conventional group (38% versus 14%, P = 0.001), and to undergo reconstruction (42% versus 26%, P = 0.047). The groups showed no difference in rates of hematoma, seroma, delayed healing, infection, 30- or 90-day reoperation, or partial or complete flap/graft failure. The collaborative approach described here is feasible and associated with increased plastic surgery involvement and reconstructive surgery. Complications were equivalent despite evidence suggesting increased case complexity in the collaboration group. These early results are promising and could inspire wider adoption of structured orthoplastic protocols for care of these patients.

Ortho-oncoplastic surgery in foot and ankle: A narrative overview on reconstruction of soft-tissue defects after oncologic resections

INTRODUCTION

Malignant tumors of the foot are rare, and treatment strategies are challenging considering the complex anatomy of this area. In recent years, dramatic advances in technology and collaborations between different specialties (such as orthopedic, oncology, radiology, plastic, and vascular surgery) significantly changed the approach to complex malignant tumors without resorting to limb removal. The combination of the strengths of both orthopedic surgery and plastic surgery constitutes the modern definition of "orthoplasty." The aim of this review article is to provide treatment strategies that are available for reconstruction of foot and ankle in limb-salvage surgery after tumor resection, with a specific focus on microsurgical techniques in plastic surgery.

METHODS

We conducted a comprehensive search for relevant papers across PubMed, Scopus, Embase, and Web of Science. We included patient-based studies reporting on procedures for soft-tissue reconstruction with small and large soft tissue defects. Indications, pros and cons, and technique tips are discussed for each type of reconstructive technique.

RESULTS

The search was done using literature of the past 30 years (from 1990 to date), resulting in about 725 articles describing over 2000 cases. Cutaneous flaps included lateral supramalleolar flap, medial plantar flap, reverse sural neurocutaneous island flap, medial leg flap, and lateral leg flap. Free flaps included anterolateral thigh flap, radial forearm flap, latissimus dorsi flap, gracilis muscle flap, lateral arm flap, and rectus abdominis flap.

CONCLUSIONS

The orthoplastic approach in musculoskeletal oncology is a collaborative model of orthopedic and plastic surgeons working together, resulting in a higher rate of successful limb salvage in patients at risk for amputation. Protocols, biologic substitutes, and surgical techniques are largely improved in the last decades increasing the possibility of functional reconstruction. Microsurgical strategies represent the new frontiers in these demanding reconstructions.

Efficacy of Orthoplastic Management in the Treatment of Traumatic Popliteal Artery Injury

Background

Popliteal artery injury (PAI) is a challenging condition. Even with appropriate initial treatment and reconstruction of the associated injuries, extensive soft-tissue necrosis may occur, requiring lower leg amputation. There are no reports on the effectiveness of orthoplastic surgery in treating traumatic PAI. However, orthoplastic surgery is also considered very effective in PAI treatment, which requires delicate handling of soft-tissue and blood vessels. This study aimed to examine the treatment outcomes of traumatic PAI at a trauma center with the capacity for orthoplastic management.

Methods

Patients with PAI who were treated at our institution between August 2013 and December 2021 were included in this study. The surgeons included multiple orthoplastic surgeons with capabilities in vascular repair, bone and ligament reconstruction, and soft-tissue reconstruction. Patient demographics, injury characteristics, degree of ischemia, and treatment were investigated. We also investigated whether soft-tissue reconstruction and lower limb amputation were necessary as outcomes of treatment.

Results

Fifteen limbs of 14 patients with PAI met the inclusion criteria. Extensive soft-tissue necrosis was observed in three limbs. Two of these limbs were covered with a free latissimus dorsi flap and could be salvaged. In the remaining limb, lower limb amputation was unavoidable because of unexplained cardiac arrest during the initial surgery, but a fillet flap was used to successfully preserve the knee joint.

Conclusion

Orthoplastic management has the potential to improve limb salvage rates and provide good outcomes for the treatment of traumatic PAI.

A Systematic Review of the Orthoplastic Approach in Adult Lower Extremity Soft Tissue Sarcoma Flap Reconstruction

BACKGROUND

The orthoplastic approach to patient care has changed the way patients with a wide variety of lower extremity pathology are treated. Through a systematic review, we aim to analyze outcomes in adult patients with lower extremity soft tissue sarcomas who undergo an orthoplastic flap management approach to their care.

METHODS

A systematic review of adult lower extremity soft tissue sarcoma excision with plastic surgery flap reconstruction was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines searching the Pubmed, Embase, and Web of Science databases from inception to April 2023.

RESULTS

After removal of duplicates, title and abstract screening, and full-text review, 26 articles were accepted for inclusion. The total mean follow-up duration was 32.0 ± 24.3 months. Reconstruction used microvascular free flaps in 65.5% (487/743), while 34.5% (256/743) were local flaps. 85.8% (307/358) of patients ambulated postoperatively. Revision surgery was required in 21% of patients during their respective follow-up periods. The limb salvage rate was 93.4% (958/1,026). Among pooled surgical outcomes, 22.2% (225/1,012) of patients experienced a perioperative complication.

DISCUSSION

Our study demonstrates that although complication rates in lower extremity soft tissue sarcoma reconstruction may be further optimized, a multidisciplinary flap reconstructive approach provides high rates of limb salvage and functional postoperative ambulation.

Exploring the Role of Free Tissue Transfers in the Preservation of Bone Length and Knee Joint Function after Lower Limb Trauma: A Retrospective Analysis

Lower limb trauma often results in mangled extremities, and in some cases, complete amputation may be necessary. However, limiting the extent of amputation and preserving the major knee joint are crucial to enhance mobility and overall functionality. By providing painless soft tissue coverage on the stump, early prosthesis use and the initiation of physiotherapy become more feasible. Soft tissue transfers hold the potential to benefit patients in two essential aspects: first, resolving soft tissue deficiencies without causing bone shortening, and second, preparing the stump to enhance overall functionality. A retrospective study conducted at Chang Gung Memorial Hospital (2009-2016) focused on lower limb amputation patients who underwent soft tissue transfers at different time periods compared to those without stump reconstruction. Out of the 2391 cases of lower limb injuries treated operatively, 117 amputations were performed in 110 patients (44 above the knee and 73 below the knee). Among them, 12 patients received soft tissue transfers for limb salvage and soft tissue deficiency after amputations. It was observed that patients in this group were typically younger, predominantly female, had longer hospital stays, and underwent a greater number of surgical procedures (p < 0.05). Through the use of soft tissue transfers, successfully preserved tibial bone length and functional knee joint in selected patients was achieved. This approach effectively resolved soft tissue deficiencies following lower limb amputations, optimizing physiotherapy and facilitating functional rehabilitation.

Technical Variables in Lower Extremity Free Flap Reconstruction

BACKGROUND

 Lower extremity free flap failure rates are higher than in other areas of the body. While prior studies assessed the effect of intraoperative technical variables, these generally investigated individual variables and did not examine relationships between the many individual technical decisions made during free tissue reconstruction. Our purpose was to investigate the effect of variation in intraoperative microsurgical techniques on flap outcomes in a diverse cohort of patients requiring lower extremity free flap coverage.

METHODS

 Consecutive patients undergoing free flap reconstruction of the lower extremity at two level 1 trauma centers from January 2002 to January 2020 were identified using Current Procedural Terminology codes, followed by a review of medical records. Information regarding demographics and comorbidities, indications, intraoperative technical details, and complications was collected. Outcomes of interest included an unplanned return to the operating room, arterial thrombosis, venous thrombosis, partial flap failure, and total flap failure. Bivariate analysis was performed.

RESULTS

 In total, 410 patients underwent 420 free tissue transfers. The median follow-up time was 17 months (interquartile ranges: 8.0-37). Total flap failure occurred in 4.9% (n = 20), partial flap failure in 5.9% (n = 24), and unplanned reoperation in 9.0% (n = 37), with arterial thrombosis in 3.2% (n = 13) and venous thrombosis in 5.4% (n = 22). Overall complications were significantly associated with recipient artery choice, with arteries other than PT and AT/DP having a higher rate (p = 0.033), and with arterial revisions (p = 0.010). Total flap failure was also associated with revision of the arterial anastomosis (p = 0.035), and partial flap failure was associated with recipient artery choice (p = 0.032).

CONCLUSION

 Many interoperative options and techniques are available when performing microvascular lower extremity reconstruction that leads to equally high success rates. However, the use of arterial inflow outside of the posterior tibial and anterior tibial arteries leads to a higher overall complication rate and partial flap failure rate. Intraoperative revision of the arterial anastomosis portends poorly for ultimate flap survival.

Secondary Bony Defects after Soft Tissue Reconstruction in Limb-Threatening Lower Extremity Injuries: Does the Approach to Flap Elevation Matter?

BACKGROUND

 Limb-threatening lower extremity injuries often require secondary bone grafting after soft tissue reconstruction. We hypothesized that there would be fewer wound complications when performing secondary bone grafting via a remote surgical approach rather than direct flap elevation.

METHODS

 A retrospective cohort study was performed at a single Level 1 trauma center comparing complications after secondary bone grafting in patients who had undergone previous soft tissue reconstruction after open tibia fractures between 2006 and 2020. Comparing bone grafting via a remote surgical incision versus direct flap elevation, we evaluated wound dehiscence requiring return to the operating room as the primary outcome. Secondary outcomes were deep infection and delayed amputation.

RESULTS

 We identified 129 patients (mean age: 40 years, 82% male) with 159 secondary bone grafting procedures. Secondary bone grafting was performed via a remote surgical approach in 54% (n = 86) and direct flap elevation in 46% (n = 73) of cases. Wound dehiscence requiring return to the operating room occurred in one patient in the flap elevation group (1%) and none of the patients in the remote surgical approach. The odds of deep wound infection (OR, 1.77; p = 0.31) or amputation (OR, 1.43; p = 0.73) did not significantly differ between surgical approaches. No significant differences were found in complications between the reconstructive surgeon elevating and re-insetting the flap and the orthopaedic trauma surgeon performing the flap elevation and re-inset.

CONCLUSION

 Direct flap elevation for secondary bone grafting after soft tissue reconstruction for open tibia fractures did not result in more complications than bone grafting via a remote surgical approach. These findings should reassure surgeons to allow other clinical factors to influence the surgical approach for bone grafting.

Current Concepts in Lower Extremity Amputation: A Primer for Plastic Surgeons

LEARNING OBJECTIVES

After studying this article, the participant should be able to: 1. Understand the goals of lower extremity reconstruction and identify clinical scenarios favoring amputation. 2. Understand lower extremity amputation physiology and biomechanics. 3. Review soft-tissue considerations to achieve durable coverage. 4. Appreciate the evolving management of transected nerves. 5. Highlight emerging applications of osseointegration and strategies to improve myoelectric prosthetic control.

SUMMARY

Plastic surgeons are well versed in lower extremity reconstruction for traumatic, oncologic, and ischemic causes. Limb amputation is an increasingly sophisticated component of the reconstructive algorithm and is indicated when the residual limb is predicted to be more functional than a salvaged limb. Although plastic surgeons have traditionally focused on limb salvage, they play an increasingly vital role in optimizing outcomes from amputation. This warrants a review of core concepts and an update on emerging reconstructive techniques in amputee care.

Severe Soft Tissue Loss on Dorsum of the Foot with Irreparable Hallucis Extensors: An Orthoplastic Reconstruction Case Report

CASE

A motorcycle accident resulted in severe soft tissue loss on the foot's dorsum with irreparable hallucis extensors, with exposure of the first metatarsal and hallux. An arthrodesis of the hallux interphalangeal joint, a transfer of the second toe's extensor digitorum longus, and an anterolateral thigh free flap were performed simultaneously. The patient obtained a fair result and could wear regular shoes.

DISCUSSION

This is the first report describing this orthoplastic reconstructive option in these complex injuries. It replenished both hallux extensor tendons and soft tissue coverage losses without severely compromising the foot's contour, recreating anatomy and function.

Osteocutaneous Turn-Up Fillet Flaps: A Spare-Parts Orthoplastic Surgery Option for a Functional Posttraumatic Below-Knee Amputation

This article portrays the authors' experience with a complex lower limb bone and soft tissue defect, following chronic osteomyelitis and pathological fracture, which was managed by the multidisciplinary orthoplastic team. The decision for functional amputation versus limb salvage was deemed necessary, enhanced by the principles of "spare parts" in reconstructive microsurgery. This case describes the successful use of the osteocutaneous distal tibia turn-up fillet flap that allowed "lowering the level of the amputation" from a through knee to a below-knee amputation (BKA) to preserve the knee joint function. We comprehensibly review reports of turn-up flaps which effectively lower the level of amputation, also applying "spare-parts" surgery principles and explore how these concepts refine complex orthoplastic approaches when limb salvage is not possible to enhance function. The osteocutaneous distal tibia turn-up fillet flap is a robust technique for modified BKA reconstructions that provides sufficient bone length to achieve a tough, sensate stump and functional knee joint.

[Emergency free flap in reconstruction of the lower limb: About 23 cases over 11 years]

OBJECTIVES

To study the coverage period influence and various parameters concerning the microsurgical act on the patient clinical outcomes.

METHODS

We report 23 cases of reconstruction of lower limb loss of substance by free flap operated from 2010 to 2021. Among them, 9 patients were operated on as an emergency versus 14 in the secondary or late phase of the trauma.

RESULTS

The average age of injured patients operated on emergency was 42 years (17-68 years) and 34 years for the patients who undergo deferred surgery (17-57 years). The sex ratio (female/male) was 22% in patients operated on urgently and 7% in patients operated on later. Regarding the type of free flap, it was Serratus anterior muscle flap in 10 cases, Latissismus dorsi flap in 9 cases, ALT flap in 3 cases and Gracilis muscle flap in 1 case. There were 2 failures of vascularized free transfer (8.7%) with complete necrosis of the flap and 3 revision surgeries on venous thrombosis which finally made it possible to obtain 3 flap successes. We analyze the results (complications/osteitis) according to the time to coverage.

CONCLUSIONS

In our study, we did not find any significant difference between the groups operated in emergency and at a distance concerning the rate of infection and failure of the flaps.

Orthoplastic management of distal tibia bone infection using Masquelet technique and PRECICE nail: A case report

The orthoplastic treatment of post-traumatic bone infections is complex and requires a multidisciplinary approach using both orthopedic and plastic surgery principles. Its primary goal is to achieve rapid control of the infection through aggressive debridement of the affected tissue, in order to perform a complete reconstruction of the limb. This allows both its salvage and restoration of function. We present a patient with septic non-union secondary to distal tibia fracture with a bone defect of 7 cm and severe soft tissue injury. The treatment was divided into three stages. First, the infection was controlled by radical debridement, limb shortening, and temporary stabilization. Second, early reconstruction was initiated utilizing the first stage of the Masquelet's induced membrane technique (MIMT), and soft tissue coverage with free flap. Third, MIMT was finalized, and bone lengthening with PRECICE nail was performed. We consider this approach effective as it can offer early recovery with optimal functional and aesthetic results in bone defects associated with coverage defects.

Assessment of Risk Factors Correlated with Outcomes of Traumatic Lower Extremity Soft Tissue Reconstruction

Identifying risk factors for traumatic lower extremity reconstruction outcomes has been limited by sample size. We evaluated patient and procedural characteristics associated with reconstruction outcomes using data from almost four million patients.

Methods

The National Trauma Data Bank (2015-2018) was queried for lower extremity reconstructions. Univariable and multivariable analyses determined associations with inpatient outcomes.

Results

There were 4675 patients with lower extremity reconstructions: local flaps (77%), free flaps (19.2%), or both (3.8%). Flaps were most commonly local fasciocutaneous (55.1%). Major injuries in reconstructed extremities were fractures (56.2%), vascular injuries (11.8%), and mangled limbs (2.9%). Ipsilateral procedures prereconstruction included vascular interventions (6%), amputations (5.6%), and fasciotomies (4.3%). Postoperative surgical site infection and amputation occurred in 2% and 2.6%, respectively. Among survivors (99%), mean total length of stay (LOS) was 23.2 ± 21.1 days and 46.8% were discharged to rehab. On multivariable analysis, vascular interventions prereconstruction were associated with increased infection [odds ratio (OR) 1.99, 95% confidence interval (CI) 1.05-3.79, P = 0.04], amputation (OR 4.38, 95% CI 2.56-7.47, P < 0.001), prolonged LOS (OR 1.59, 95% CI 1.14-2.22, P = 0.01), and discharge to rehab (OR 1.49, 95% CI 1.07-2.07, P = 0.02). Free flaps were associated with prolonged LOS (OR 2.08, 95% CI 1.74-2.49, P < 0.001).

Conclusions

Prereconstruction vascular interventions were associated with higher incidences of adverse outcomes. Free flaps correlated with longer LOS, but otherwise similar outcomes. Investigating reasons for increased complication and healthcare utilization likelihood among these subgroups is warranted.

[Plastic-surgical reconstruction of the lower extremity in senior patients]

The proportion of patients in the population beyond the 7th decade of life is increasing worldwide, especially in highly developed countries. Consequently, there is also an increasing need for complex lower extremity reconstructions after trauma, tumors, or infections in this age group. The reconstruction of soft tissue defects of the lower extremity should be performed according to the principle of the plastic-reconstructive ladder or elevator. The goal of reconstruction is to restore anatomy and function of the lower extremity to enable pain-free and stable standing and walking; however, for older patients in particular, a careful preoperative multidisciplinary planning, detailed preoperative assessment and optimization of comorbidities, such as diabetes, malnutrition or pathological vascular alterations, as well an age-adapted perioperative management are necessary. By implementing these principles, older and very old patients can maintain their mobility and autonomy, which are crucial for a high quality of life.

Early Reconstruction Delivered Better Outcomes for Severe Open Fracture of Lower Extremities: A 15-Year Retrospective Study

Background: The principle of early flap reconstruction for high-grade traumatic lower-extremity injuries established in 1986 by Godina has been widely accepted. However, the lack of an orthoplastic center in China makes early reconstruction not accessible for all patients with a Gustilo IIIB fracture. This study aimed to analyze the impact of timing on outcomes in lower-extremity traumatic free-flap reconstruction. Methods: A retrospective review identified 394 free-flap reconstructions performed from January 2005 to January 2020 for Gustilo IIIB tibial fractures. Patients were stratified based on the number of debridements: two times or less (early) and more than two times (delayed). The interval between injury and reconstruction, surgery time, hemorrhage volume, length of hospitalization (LoS), wound and bone healing time, flap outcomes, and function restoration were examined based on times of debridement. Results: The mean interval between injury and flap reconstruction in the early-repair group with 6.15 ± 1.82 postoperative days (PODs) was significantly shorter than that of the delayed-repair group with 16.46 ± 4.09 PODs (p < 0.001). The flap harvest time, reconstructive time, and intraoperative blood loss were also significantly less in the early-repair group compared to the delayed-repair group. Interestingly, we observed an 8.20% enlargement of wound size due to multiple debridements in the delayed-repair group. Most importantly, the early-repair group had better outcomes with a decreased risk of total or partial flap necrosis, lower incidence of flap complications, and fewer overall late complications than the delayed-repair group. In addition, the LoS, as well as wound and bone healing time, were notably shorter in the early-repair group. Furthermore, 4.85% of cases in the delayed-repair group experienced additional operations on bone, while no additional operations were performed in the early-repair group. All cases in both groups obtained satisfying functional results, while the early-repair group showed better functional recovery. Conclusions: Early repair with free flaps performed within two instances of debridement had superior outcomes when compared with delayed reconstruction after multiple debridements, consistent with Godina’s findings. We recommended early referral to a higher-level hospital with orthoplastic capabilities after an aggressive and thorough initial debridement carried out by senior surgeons.

Microsurgical Strategies after Free Flap Failure in Soft Tissue Reconstruction of the Lower Extremity: A 17-Year Single-Center Experience

Background: There is no clear consensus on the optimal surgical strategy for providing safe coverage in salvage free flap surgery after total free flap failure. Methods: A retrospective study was conducted to evaluate patients with total failure of the primary free flap in lower extremity reconstruction between 2000 and 2017. Results: In a cohort of 1.016 patients, we identified 43 cases of total flap failure (4.2%). A total of 30 patients received a salvage free flap with a success rate of 83.3% (25/30). One patient received a secondary salvage free flap. Overall limb salvage after primary free flap loss was 83.7% (36/43). Conclusions: Microsurgical management of free flap loss in the lower extremity is challenging and requires a decisive re-evaluation of risk factors and alternative strategies. This should include reconsidering the flap choice with a tendency towards traditional and safe workhorse flaps, a low-threshold switch to different recipient vessels, including arteriovenous (AV) loops, bypasses (especially in case of venous insufficiency) and back-up procedures, such as negative pressure wound therapy or dermal regeneration templates with skin grafting in cases of lower demand and critically ill patients. We derived one suggestion from our previous practice: replacing perforator flaps with axial pattern flaps (“safe workhorses”).

Reconstruction Options for Lower Extremity Traumatic Wounds

The senior author first coined the "orthoplastic" approach to traumatic lower extremity reconstruction, by which multidisciplinary surgeons and specialists work together for optimal patient success. The goals of lower extremity salvage are to optimize limb appearance, restore unrestricted pain-free ambulation, and improve quality of life. Composite traumatic defects require an organized approach, and the reconstructive ladder is used for strategies of varying complexity for repair of soft-tissue wounds. The lower rungs of the ladder include simpler reconstructive options such as the use of skin grafts and local flaps, and the higher rungs represent complex techniques such as free tissue transfer. Although there is no notable difference between muscle and fasciocutaneous/perforator flaps in reconstructive outcomes, there has been a trend toward perforator flaps to minimize donor site morbidity.

Impact of establishing a level-1 trauma center for lower extremity trauma: a 4-year experience

PURPOSE

A multidisciplinary approach is essential for trauma patients' treatment, particularly for cases with open lower extremity fractures, which are considered major traumas requiring a comprehensive approach. Recently, the social demand for severe-trauma centers has increased. This study analyzed the clinical impact of establishing a trauma center for the treatment of open lower extremity fractures.

METHODS

A retrospective chart review was conducted for trauma patients admitted to our hospital. Patients were classified into two groups: before (January 2014-December 2015, 178 patients) and after establishment of a Level-1 trauma center (January 2017-December 2018, 125 patients). We included patients with open fracture below the knee level and Gustilo type II/III, but excluded those with life-threatening trauma that affected the treatment choice.

RESULTS

Total 273 patient were included in this study, initial infection was significantly more common and external fixator application significantly less in post-center establishment group. The time to emergency operation decreased significantly from 13.89 ± 17.48 to 11.65 ± 19.33 h post-center setup. By multivariate analysis, the decreased primary amputation and increased limb salvage was attributed to establishment of the trauma center.

CONCLUSION

With the establishment of the Level-1 trauma center, limbs of patients with open lower extremity fractures could be salvaged, and the need for primary amputation was decreased. Early control of initial open wound infection and minimizing external fixator use allowed early soft tissue reconstruction. The existence of the center ensured a shorter interval to emergency operation and facilitated interdepartmental cooperation, which promoted active limb salvage and contributed to patients' quality of life.

Free versus Pedicled Flaps for Lower Limb Reconstruction: A Meta-Analysis of Comparative Studies

Background: Free and pedicled flaps are both valuable surgical strategies for lower limb reconstruction. Evidence that compares both techniques is scarce. Our aim is to synthetise all the comparative studies by conducting a meta-analysis to identify post-operative outcomes. Method: A systematic review of pubmed, EMBASE, Cochrane library, and Web of Science was conducted, aiming at articles comparing the outcomes of free versus pedicled flaps in lower limb reconstruction. A pooled analysis with the Mantel and Haenszel methods and random effect analysis provided results as a risk ratio with a 95% confidence interval. Results: 10 retrospective studies were selected. While the flap necrosis rate did not differ significantly between techniques (RR 1.35, 95%CI 0.76–2.39, p = 0.31), the partial flap necrosis rate was significantly lower in free flaps (RR 0.45, 95%CI 0.22–0.91, p = 0.03). The overall complication rate (RR 0.83, 95%CI 0.64–1.07, p = 0.16) and revision surgery rate (RR 1.38, 95%CI 0.55–3.50, p = 0.49) did not differ significantly. No significant difference was found in the high aesthetic satisfaction rate (RR 1.76, 95%CI 0.57–5.41, p = 0.32) and post-operative infection rate (RR 0.85, 95%CI 0.55–1.33, p = 0.48). Conclusion: Despite important variability in the choice of flaps and outcomes reported among studies, free and pedicled flaps appear to be reliable surgical strategies for lower limb reconstruction with similar surgical outcomes.

Fracture-related infection of the patella: Treatment options and outcome

BACKGROUND

Fracture-related infection (FRI) after the operative management of patella fractures is a serious complication that can result in prolonged hospitalization, multiple revision procedures and permanent functional impairment. Till today, treatment modalities and outcome of FRI of the patella are not well described. Therefore, the main objective of this retrospective cohort study was to evaluate treatment options, functional outcome and healthcare costs related to FRI of the patella.

METHODS

This study evaluated 111 consecutive patients that were surgically treated for patella fractures, at the department of trauma surgery of the University Hospitals Leuven (Belgium), between January 2015 and April 2020. Patients were excluded if they (1) were younger than 18 years at the time of injury or (2) died during follow up. The minimal follow-up for all patients was 18 months.

RESULTS

During the 5-year study period, 107 patients with 108 patella fractures were included. A total of 10 patients were diagnosed with an FRI (9.3%). Four of these were treated with a DAIR approach and three patients underwent implant removal or exchange. Finally, three patients were treated with total patellectomy. Out of the 10 patients, two were diagnosed with a recurrence of infection. Overall, we observed substantial lower scores for all Knee Injury and Osteoarthritis Outcome Score subscales in the FRI group, compared to a reference population. Moreover, our study shows that direct hospital-related healthcare costs of FRI of the patella were nine times higher compared to non-FRI cases.

CONCLUSIONS

FRI of the patella is a challenging complication and recurrence of infection not uncommon. Although multiple treatment modalities exist, a multidisciplinary patient-specific approach is crucial. An early or delayed onset infection can be managed with a DAIR approach, but only when the construct is stable and the soft tissue coverage adequate. In patients with an FRI, implant removal is preferred when the fracture has healed. A total patellectomy can be used as a salvage procedure in complex cases with acceptable functional results. Overall, FRI of the patella leads to both a negative impact on the functional status of the patient and a ninefold increase in total healthcare costs.

Addressing common orthopaedic calamities with microsurgical solutions

Reconstructive microsurgery has been an essential aspect of orthopaedic surgery and extremity reconstruction since the introduction of the operating microscope in the mid-20^th century. The reconstructive ladder ranges from simple healing by secondary intention to complex procedures such as free tissue transfer and vascularized composite allotransplantation. As orthopaedic surgery has evolved over the past 60 years, so too have the reconstructive microsurgical skills that are often needed to address common orthopaedic surgery problems. In this article, we will discuss a variety of complex orthopaedic surgery scenarios ranging from trauma to infection to tumor resection as well as the spectrum of microsurgical solutions that can aid in their management.

Open tibial fractures: An overview

Open tibial fractures are complex injuries with multifactorial outcomes and variable prognosis. The close proximity of the tibia to the skin makes it prone to extensive soft tissue damage and subsequent detrimental complications, such as infection and non-union. Thus, they were historically associated with high rates of amputation, sepsis, or even death. The advancement of surgical instruments and techniques, along the emergence of evidence-based guidance, have resulted in a significant reduction in complications. Peculiarly though, modern management strategies have a strong foundation in practices described in the ancient times. Nevertheless, post-operative complications are still a challenge in the management of open tibial fractures. Efforts are actively being made to refine the surgical approaches used, while noteworthy is the emergence of the Orthoplastic approach. The aim of this review is to summarise and discuss the historical perspective of the management of open tibial fractures, their epidemiology and classification, up-to-date principles of surgical management and outcomes following injury.

The Effect of Delayed Surgical Debridement in the Management of Open Tibial Fractures: A Systematic Review and Meta-Analysis

Introduction: Open tibial fractures are complex injuries with variable outcomes that significantly impact patients’ lives. Surgical debridement is paramount in preventing detrimental complications such as infection and non-union; however, the exact timing of debridement remains a topic of great controversy. The aim of this study is to evaluate the association between timing of surgical debridement and outcomes such as infection and non-union in open tibial fractures. Materials and Methods: We performed a systematic review and meta-analysis of the literature to capture studies evaluating the association between timing of initial surgical debridement and infection or non-union, or other reported outcomes. We searched the MEDLINE, PubMed Central, EMBASE, SCOPUS, Cochrane Central and Web of Science electronic databases. Our methodology was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement and the Cochrane handbook for systematic reviews of interventions. Results: The systematic review included 20 studies with 10,032 open tibial fractures. The overall infection rate was 14.3% (314 out of 2193) and the overall non-union rate 14.2% (116 out of 817). We did not find any statistically significant association between delayed debridement and infection rate (OR = 0.87; 95% CI, 0.68 to 1.11; p = 0.23) or non-union rate (OR = 0.70; 95% CI, 0.42 to 1.15; p = 0.13). These findings did not change when we accounted for the effect of different time thresholds used for defining early and late debridement, nor with the Gustilo–Anderson classification or varying study characteristics. Conclusion: The findings of this meta-analysis support that delayed surgical debridement does not increase the infection or non-union rates in open tibial fracture injuries. Consequently, we propose that a reasonable delay in the initial debridement is acceptable to ensure that optimal management conditions are in place, such that the availability of surgical expertise, skilled staff and equipment are prioritised over getting to surgery rapidly. We recommend changing the standard guidance around timing for performing surgical debridement to ‘as soon as reasonably possible, once appropriate personnel and equipment are available; ideally within 24-h’.

Surgical OFF-LOADING of the diabetic foot

Diabetic foot ulcer treatment is a challenge for the healthcare world. Widespread infection and the presence of critical ischemia (especially with end-stage renal disease) can lead to major amputation rather than amenable to conservative treatment. Surgical strategies of the diabetic foot have been changing over the past 10 years and are now focused on reconstructive treatment and limb salvage. These goals were achieved, thanks to an evolution of distal revascularization techniques and a distinct approach, which integrates various methods focused on limb salvage. Podoplastic techniques of the diabetic foot are focused on infection clearance, the surgical treatment of corrective deformities, soft tissue coverage and limb ischemia correction along with the management of diabetes and the comorbidities that compromise tissue repair processes. The reconstructive techniques used in diabetic foot treatment owe their effectiveness in part to the results of technological improvements such as the circular external fixator as a tool for stabilization and surgical site protection. In the last decade, many studies have shown that circular external fixation should be considered as the most useful method to protect the reconstructive surgical site in limb salvage of the diabetic foot. The objective of this review is to highlight the role of surgical offloading using circular external fixation as an adjunct to the podoplastic diabetic foot reconstruction procedures.

Free Flap Reconstruction of Traumatic Pediatric Foot and Ankle Defects: An Analysis of Clinical and Functional Outcomes

BACKGROUND

 Traumatic lower extremity injuries involving the foot and ankle can have devastating consequences and represent a complex reconstructive challenge. To date, there are limited reports on microsurgical reconstruction for foot and ankle defects in children. This study aims to evaluate clinical and functional outcomes of free flaps for pediatric foot and ankle injuries.

METHODS

 This is a retrospective review of patients undergoing free flaps for traumatic foot and ankle defects at a pediatric trauma center between 2000 and 2015. Patients with less than 5-year follow-up were excluded. Demographics, clinical characteristics, and postoperative outcomes were evaluated.

RESULTS

 Thirty patients undergoing 30 flaps were analyzed. The mean age was 11.9 years (range: 2 to 17 years). Muscle flaps (n = 21, 70%) were more common than fasciocutaneous flaps (n = 9, 30%). Limb salvage with functional ambulation was achieved in 96.7% of patients (n = 29). The complication rate was 33.3% (n = 10), with wound breakdown (n = 6, 20.0%) as most common feature. There were no significant differences in limb salvage, total or partial flap loss, fracture union, and donor-site complications based on flap type. Fasciocutaneous flaps were more likely to require revision procedures for contour compared with muscle flaps (55.6 vs. 9.5%, p = 0.013). Mean follow-up was 8.5 years.

CONCLUSION

 Microsurgical reconstruction of pediatric foot and ankle defects results in high rates of limb salvage. A defect- and patient-centered approach to reconstruction, emphasizing durable coverage and contour, is critical to facilitating ambulation and ensuring favorable long-term functional outcomes.

The Value of an Orthoplastic Approach to Management of Lower Extremity Trauma: Systematic Review and Meta-analysis

Background:

Management of traumatic lower extremity injuries requires a skill set of orthopedic surgery and plastic surgery to optimize the return of form and function. A systematic review and meta-analysis was performed comparing demographics, injuries, and surgical outcomes of patients sustaining lower extremity traumatic injuries receiving either orthoplastic management or nonorthoplastic management.

Methods:

Preferred Reporting Items for Systematic Reviews and Meta-Analysis, Cochrane, and GRADE certainty evidence guidelines were implemented for the structure and synthesis of the review. PubMed, Embase, Cochrane Library, Web of Science, Scopus, and CINAHL databases were systematically and independently searched. Nine studies published from 2013 through 2019 compared 1663 orthoplastic managed patients to 692 nonorthoplastic managed patients with traumatic lower extremity injuries.

Results:

Orthoplastic management, compared to nonorthoplastic management likely decreases time to bone fixation [standard mean differences: −0.35, 95% confidence interval (CI): −0.46 to −0.25, P < 0.0001; participants = 1777; studies = 3; I² = 0%; moderate certainty evidence], use of negative pressure wound therapy [risk ratios (RR): 0.03, 95% CI: 0.00–0.24, P = 0.0007; participants = 189; studies = 2; I² = 0%; moderate certainty evidence] with reliance on healing by secondary intention (RR: 0.02, 95% CI: 0.00–0.10, P < 0.0001; participants = 189; studies = 2; I² = 0%; moderate certainty evidence), and risk of wound/osteomyelitis infections (RR: 0.37, 95% CI: 0.23–0.61, P < 0.0001; participants = 224; studies = 3; I² = 0%; moderate certainty evidence). Orthoplastic management likely results in more free flaps compared to nonorthoplastic management (RR: 3.46, 95% CI: 1.28–9.33, P = 0.01; participants = 592; studies = 5; I² = 75%; moderate certainty evidence).

Conclusion:

Orthoplastic management of traumatic lower extremity injuries provides a synergistic model to optimize and expedite definitive skeletal fixation and free flap-based soft-tissue coverage for return of extremity form and function.

Evaluation of the American Society of Anesthesiologists Physical Status Classification System in Risk Assessment for Lower Extremity Reconstruction with Free Tissue Transfer

BACKGROUND

 The applicability of free flap reconstruction for lower extremity (LE) defects in high-risk patients continues to require ongoing review. The aim of this study was to analyze the risk factors, management, and outcome of LE free flap reconstruction in high-risk (American Society of Anesthesiologists [ASA] class 3 or 4) patients.

METHODS

 A retrospective chart review was performed for all patients who underwent LE reconstruction in our Institution (Level I Trauma Center) from 2013 to 2019. Medical records and the authors' prospectively maintained database were analyzed with respect to ASA class, comorbidities, and postoperative complications. All patients were treated using the same pre-, intra-, and postoperative multidisciplinary approach.

RESULTS

 A total of 199 patients were analyzed. Sixty-six flaps were transferred in 60 patients with an ASA class 3 or higher. High-risk patients did not present a higher rate of flap loss or LE amputation. The overall flap success rate was 92%. There were five flap losses in high-risk patients. Three of these five patients underwent a successful second free flap reconstruction. The overall success rate of LE reconstruction in high-risk patients was 90%. Four patients with successful free flap ended up in LE amputation due to bone infection and two patients underwent an amputation after the first free flap failure.

CONCLUSION

 Free flap reconstruction for LE defects in high-risk patients is a safe and reliable procedure for selected patients when an experienced multidisciplinary team is involved. Bone infection was the only variable associated with LE amputation.

Microsurgical Reconstruction of the Lower Extremity in the Elderly

Demand has increased for complex lower-extremity reconstruction in the steadily growing elderly patient group in many highly developed countries. Microsurgery is indispensable for soft tissue reconstruction and osseous consolidation salvaging leg function and preventing amputation, with its devastating consequences. Microvascular reconstruction can be performed successfully in specialized centers with low donor-site morbidity, minimal operative time, and comparably low complication rates. However, this requires thorough multidisciplinary planning, preoperative optimization of risk factors, such as diabetes and malnutrition, and individually adapted intraoperative management. Implementing these principles can reliably restore ambulation and mobility, maintaining autonomy in this population.