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Angelini A, Tiengo C, Cerchiaro MC, Soto F, Biz C, Messana F, Bassetto F, Ruggieri P. Ortho-oncoplastic surgery in foot and ankle: A narrative overview on reconstruction of soft-tissue defects after oncologic resections. Microsurgery 2024; 44:e31168. [PMID: 38549392 DOI: 10.1002/micr.31168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 01/20/2024] [Accepted: 02/28/2024] [Indexed: 04/02/2024]
Abstract
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.
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Affiliation(s)
- Andrea Angelini
- Department of Orthopedics and Orthopedic Oncology, University of Padua, Padova, Italy
| | - Cesare Tiengo
- Department of Plastic surgery, University of Padua, Padova, Italy
| | | | - Fernando Soto
- Department of Orthopedics and Orthopedic Oncology, University of Padua, Padova, Italy
| | - Carlo Biz
- Department of Orthopedics and Orthopedic Oncology, University of Padua, Padova, Italy
| | | | - Franco Bassetto
- Department of Plastic surgery, University of Padua, Padova, Italy
| | - Pietro Ruggieri
- Department of Orthopedics and Orthopedic Oncology, University of Padua, Padova, Italy
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Jeng SF, Shih HS, Papadakis M. Plantar forefoot reconstruction: A proposal of a management algorithm based on a case series analysis: Plantar forefoot reconstruction. J Plast Reconstr Aesthet Surg 2021; 75:173-182. [PMID: 34649830 DOI: 10.1016/j.bjps.2021.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 05/06/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Several loco-regional flaps have been described for plantar forefoot coverage. We, herein, report our single-centre experience in plantar forefoot reconstruction and propose a decision-making process based on the defect's size. METHODS This is a retrospective case series study of all patients who underwent plantar forefoot reconstruction in a 10-year period. We propose a treatment algorithm, based on the defect size. Defects are classified into small, moderate and large. Small defects (<10cm2) can be covered with the hemi-pulp toe flap. Patients with moderate defects (10-25cm2) can be treated with the reverse medial plantar artery flap (MPAF) from the instep area. For large defects (>25cm2), we recommend regional flaps, that is the distally based sural flap (DBSF) from the ipsilateral calf, or free flaps, such as the anterolateral thigh flap (ALT) or the skin-grafted gracilis flap. RESULTS The data of 51 patients were collected and analysed. The median age was 58 years (range 19-84). Nine patients had small defects and underwent hemi-pulp toe flap reconstruction. Three patients presented with moderate defects that were covered with reverse MPFs. The vast majority of the patients (39 patients) had large defects. Of these, eight cases were treated with DBSF and 31 cases with free flaps. Free flap transfers were successful in 97% of the cases. Overall complication rate was 25%. CONCLUSION We conclude that local flaps should be preferred in plantar forefoot reconstruction as they provide like-tissue for small to moderate defects, for large defects regional flaps or free flaps were indicated. A defect-based approach can facilitate the decision-making process.
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Affiliation(s)
- Seng-Feng Jeng
- Department of Plastic and Reconstructive Surgery, E-Da Hospital, I-Shou University Kaohsiung, Taiwan
| | - Hsiang-Shun Shih
- Department of Plastic and Reconstructive Surgery, E-Da Hospital, I-Shou University Kaohsiung, Taiwan
| | - Marios Papadakis
- Department of Plastic and Reconstructive Surgery, E-Da Hospital, I-Shou University Kaohsiung, Taiwan.
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Free Medial Plantar Flap Versus Free Dorsal Myocutaneous Flap for the Reconstruction of Traumatic Foot Sole Defects. Ann Plast Surg 2021; 84:S178-S185. [PMID: 32294068 DOI: 10.1097/sap.0000000000002373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Trauma can cause large defects in the weight-bearing foot sole. The reconstruction of such defects poses a major challenge in providing a flap that is durable, sensate, and stable. The pedicled medial plantar flap has been commonly used for reconstructing heel and plantar forefoot defects; however, the ipsilateral instep region is usually compromised by trauma. The purpose of this article was to report the use of contralateral free medial plantar flaps for the coverage of weight-bearing plantar defects and to compare these with distant free flaps. METHODS Between 2005 and 2019, 15 patients (10 men and 5 women) with weight-bearing foot plantar defects were treated with a contralateral medial plantar flap, 11 (7 men and 4 women) with either a latissimus dorsi flap or a scapular flap. The average age was 18.07 ± 10.14 years (range, 4-34 years) and 26.55 ± 13.05 years (range, 13-56 years), respectively. Surgery was performed as a primary or secondary reconstruction after a trauma by the same surgical team. RESULTS The mean size of defects was 9.73 ± 3.55 × 6.43 ± 2.8 cm in the contralateral free medial plantar flap group and 17.14 ± 6.84 × 11.41 ± 4.29 cm in the free dorsal flap group. All flaps survived in both groups. In the instep flap group, the appearance was satisfactory, the flap was durable, and tactile sensation was preserved in all patients, and none required a revision procedure. Two patients experienced delayed union of the donor-site grafted skin. In the dorsal flap group, 5 patients complained of a partial necrosis or delayed union at the recipient site, and 9 developed recurrent ulcerations over the weight-\bearing area. Five patients achieved only partial sensation in the flap. CONCLUSIONS The contralateral medial plantar flap provides superior appearance, duration, and sensation over distant muscle flaps, without recurrent ulcerations. However, dorsal myocutaneous flaps may be used as a substitute when the defects are beyond the maximum boundaries of the instep area or are combined with bone loss.
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Reply: Exchange Chimeric Flap: An Effective Method to Solve the Short Plate of Medial Plantar Flap. Ann Plast Surg 2021; 88:713. [PMID: 33661228 DOI: 10.1097/sap.0000000000002783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lin CH. Functional Restoration in Lower Extremity Reconstruction. Clin Plast Surg 2021; 48:289-297. [PMID: 33674050 DOI: 10.1016/j.cps.2021.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Daily walking stance benefits the health, whereas lower extremity reconstruction aims to accomplish balanced walking and posture control. If local flap or tendon transfer cannot provide the basic function, microsurgical reconstruction is indicated for bony, soft tissue, and sensation restoration. Wound repair can use every modality and can achieve varying wound coverage results. However, all reconstruction should have functional goals using either local flap or free flap to restore the lost function. With less recipient site secondary damage, microsurgery can provide healthy composite tissue with like-replaces-like approach to create more stable long-term results.
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Affiliation(s)
- Chih-Hung Lin
- Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital and University, 5, Fu-Hsing street, Kweishan District, Taoyuan city 333, Taiwan.
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Zwanenburg PR, Backer SFM, Obdeijn MC, Lapid O, Gans SL, Boermeester MA. A Systematic Review and Meta-Analysis of the Pressure-Induced Vasodilation Phenomenon and Its Role in the Pathophysiology of Ulcers. Plast Reconstr Surg 2019; 144:669e-681e. [PMID: 31568315 DOI: 10.1097/prs.0000000000006090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Physiologic studies show that tissue perfusion increases during moderate amounts of tissue compression. This is attributed to sensory nerves initiating a vasodilatory cascade referred to as pressure-induced vasodilation. METHODS PubMed, Embase, and the Cochrane Central Register of Controlled Trials were searched for studies investigating perfusion during pressure exposure longer than 10 minutes. Retrieved studies were assessed using the Office of Health Assessment and Translation Risk of Bias Rating Tool for Human and Animal Studies. Results were pooled with random effects models. The body of evidence was rated using the Office of Health Assessment and Translation approach. RESULTS Twenty-nine articles were included, of which 19 articles were included in meta-analyses. The evidence indicates that moderate amounts of tissue compression have the capacity to increase perfusion in healthy humans by 46 percent (95 percent CI, 30 to 62 percent). Using the Office of Health Assessment and Translation approach, the authors found a high level of confidence in the body of evidence. Pressure-induced vasodilation blockade was associated with increased pressure ulcer formation. Pressure-induced vasodilation was impaired by neuropathy and by the drugs diclofenac and amiloride. CONCLUSIONS This systematic review and meta-analysis indicates that healthy humans have the capacity to increase local perfusion in response to mechanical stress resulting from tissue compression. Because pressure-induced vasodilation is mediated by sensory nerves, pressure-induced vasodilation emphasizes the importance of sensory innervation for durable tissue integrity. Pressure-induced vasodilation impairment seems to provide a complementary explanation for the susceptibility of neuropathic tissues to pressure-induced lesions.
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Affiliation(s)
- Pieter R Zwanenburg
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
| | - Sophia F M Backer
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
| | - Miryam C Obdeijn
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
| | - Oren Lapid
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
| | - Sarah L Gans
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
| | - Marja A Boermeester
- From the Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam Infection and Immunity, and the Department of Plastic, Reconstructive and Hand Surgery, Amsterdam University Medical Center, University of Amsterdam
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Reconstruction of Defects in the Weight-Bearing Plantar Area Using the Innervated Free Medial Plantar (Instep) Flap. Ann Plast Surg 2019; 80:245-251. [PMID: 29406384 DOI: 10.1097/sap.0000000000001274] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Defects in the weight-bearing heel or forefoot are commonly derived from chronic wounds, acute trauma, or tumor excision. Reconstruction of such defects pose a significant challenge to provide a flap that is stable, durable, and sensate. Several flaps have been described for reconstruction of plantar defects, but recurrent ulcerations and/or the need of additional procedures are common. This article provides the approach and outcomes of innervated free medial plantar flap for weight-bearing plantar defects reconstruction. METHODS Chart review was performed of 17 consecutive patients with defects in the weight-bearing heel and/or forefoot who were treated with innervated free medial plantar flaps between the years 1999 and 2016. Eleven patients were male, and 6 patients were female. The mean age was 29.5 years (range, 4-52 years). One case was combined heel/forefoot defect, 7 were heel defects, and 9 were forefoot defects. Indications were acute trauma, secondary reconstruction after trauma, and tumor excision. RESULTS The mean defect size was 8.0 ± 5.4 cm × 5.1 ± 2.1 cm, and mean flap size was 9.7 ± 1.4 cm × 6.4 ± 0.9 cm. One flap suffered from arterial thrombosis, which necessitated reoperation, and was salvaged. For the remaining cases, the postoperative course was uneventful. The mean follow-up time was 59.3 (±51.3.6) months. Two patients received minor flap corrections due to hyperkeratosis and hypertrophic scar, and 2 patients required donor site correction owing to partial loss of skin graft. One patient succumbed within 1 year owing to metastatic disease. All patients that were followed more than 1 year (n = 15) could sense blunt touch of the flap. Ten patients underwent 2-point discrimination test. No patient had recurrence of ulceration. CONCLUSIONS The innervated medial plantar flap is an excellent solution for treatment of medium-to-large defects in the weight-bearing heel or forefoot. It provides glabrous skin that is stable, durable, and sensate. The long-term results are good, with no patient afflicted by recurrent ulceration during the follow-up time.
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Lohasammakul S, Turbpaiboon C, Chaiyasate K, Tatsanavivat P, Chompoopong S, Roham A, Ratanalekha R, Aojanepong C. Anatomy of medial plantar superficial branch artery perforators: Facilitation of medial plantar superficial branch artery perforator (MPAP) flap harvesting and design for finger pulp reconstruction. Microsurgery 2018; 38:536-543. [PMID: 29575166 DOI: 10.1002/micr.30321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 01/28/2018] [Accepted: 03/02/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND Medial plantar artery perforator (MPAP) flap was proposed as proper option for finger pulp reconstruction. To provide the previously unavailable vessel information required for this small flap design, this study aimed to gather all necessary anatomy of MPA, MPAP, and their territories of blood supply to apply in clinical MPAP flap reconstruction minimizing perforator injury. METHODS Dissection of 30 Thai cadaveric feet for visualizing superficial branch of MPA and its perforators (MPAP) using acrylic dye cannulation were performed. Diameter, length, number of branches, course, distributing areas of these vessels, and also their areas of blood supply were recorded in relation to specified landmarks, eg, C-MTH line; medial calcaneal tuberosity to plantar side of the first metatarsal head and S point; emerging point of superficial branch of MPA from deep fasciae into subcutaneous layer. RESULTS Average diameter of MPA at its origin and total length are 1.63 ± 0.3 and 52.8 ± 16.1 mm, respectively. It provides 1-3 perforators, with an average size and length of 0.36 ± 0.11 and 23.2 ± 5.47 mm, respectively. Its distribution is mostly in the posteromedial quadrant within 50 and 30 mm from the midpoint of C-MTH line and the S point, respectively. The estimated perforator flap area is 2.5 cm × 1.5 cm and 4.5 cm × 2.5 cm for single and double perforators, respectively. CONCLUSIONS MPAP flap was proved as another ideal option for finger pulp reconstruction. Its limitation is small size of perforators but this can be overcome by using MPA for microsurgical anastomosis instead.
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Affiliation(s)
- Suphalerk Lohasammakul
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chairat Turbpaiboon
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kongkrit Chaiyasate
- Division of Plastic Surgery, Department of Surgery, William Beaumont Hospital, Royal Oak, Michigan
| | - Parin Tatsanavivat
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Kamol Cosmetic Hospital, Bangkok, Thailand
| | - Supin Chompoopong
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ali Roham
- Division of Plastic Surgery, Department of Surgery, William Beaumont Hospital, Royal Oak, Michigan
| | - Rosarin Ratanalekha
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chongdee Aojanepong
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Macedo JLSD, Rosa SC, Rezende Filho Neto AVD, Silva AAD, Amorim ACSD. Reconstrução de lesões de partes moles de pé com o uso de retalho plantar medial. Rev Bras Ortop 2017. [DOI: 10.1016/j.rbo.2016.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Macedo JLSD, Rosa SC, Neto AVDRF, Silva AAD, Amorim ACSD. Reconstruction of soft-tissue lesions of the foot with the use of the medial plantar flap. Rev Bras Ortop 2017; 52:699-704. [PMID: 29234654 PMCID: PMC5720857 DOI: 10.1016/j.rboe.2017.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 10/04/2016] [Indexed: 11/29/2022] Open
Abstract
Objective To study use of the medial plantar flap for reconstruction of the heel and foot. Method The authors share their clinical experience with the use of the medial plantar artery flap for coverage of tissue defects around the foot and heel after trauma. Twelve cases of medial plantar artery flap performed from January 2001 to December 2013 were included. Results Of the 12 patients, ten were male and two were female. The indications were traumatic loss of the heel pad in ten cases and the dorsal foot in two cases. All the flaps healed uneventfully without major complications, except one case with partial flap loss. The donor site was covered with a split-thickness skin graft. The flaps had slightly inferior protective sensation compared with the normal side. Conclusion From these results, the authors suggest that the medial plantar artery flap is a good addition to the existing armamentarium for coverage of the foot and heel. It is versatile flap that can cover defects on the heel, over the Achilles tendon and plantar surface, as well as the dorsal foot. It provides tissue to the plantar skin with a similar texture and intact protective sensation.
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Affiliation(s)
- Jefferson Lessa Soares de Macedo
- Hospital Regional da Asa Norte, Brasília, DF, Brazil.,Escola Superior de Ciências da Saúde, Curso de Medicina, Brasília, DF, Brazil
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Park JS, Lee JH, Lee JS, Baek JH. Medialis pedis flap for reconstruction of weight bearing heel. Microsurgery 2017; 37:780-785. [DOI: 10.1002/micr.30198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/09/2017] [Accepted: 06/09/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Jin Sung Park
- Department of Orthopedic Surgery; Gyeongsang National University School of Medicine and Gyeongsang National University Hospital; Jinju Republic of Korea
| | - Jae Hoon Lee
- Department of Orthopedic Surgery; Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University; Seoul Korea
| | - Jung Suk Lee
- Department of Orthopedic Surgery; Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University; Seoul Korea
| | - Jong Hun Baek
- Department of Orthopedic Surgery; Kyung Hee University Hospital, School of Medicine, Kyung Hee University, Hoegi-dong, Dongdaemun-gu; Seoul Korea
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Li X, Cui J, Maharjan S, Lu L, Gong X. Reconstruction of the Foot and Ankle Using Pedicled or Free Flaps: Perioperative Flap Survival Analysis. PLoS One 2016; 11:e0167827. [PMID: 27930679 PMCID: PMC5145187 DOI: 10.1371/journal.pone.0167827] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 11/21/2016] [Indexed: 11/25/2022] Open
Abstract
Objective The purpose of this study is to determine the correlation between non-technical risk factors and the perioperative flap survival rate and to evaluate the choice of skin flap for the reconstruction of foot and ankle. Methods This was a clinical retrospective study. Nine variables were identified. The Kaplan-Meier method coupled with a log-rank test and a Cox regression model was used to predict the risk factors that influence the perioperative flap survival rate. The relationship between postoperative wound infection and risk factors was also analyzed using a logistic regression model. Results The overall flap survival rate was 85.42%. The necrosis rates of free flaps and pedicled flaps were 5.26% and 20.69%, respectively. According to the Cox regression model, flap type (hazard ratio [HR] = 2.592; 95% confidence interval [CI] (1.606, 4.184); P < 0.001) and postoperative wound infection (HR = 0.266; 95% CI (0.134, 0.529); P < 0.001) were found to be statistically significant risk factors associated with flap necrosis. Based on the logistic regression model, preoperative wound bed inflammation (odds ratio [OR] = 11.371,95% CI (3.117, 41.478), P < 0.001) was a statistically significant risk factor for postoperative wound infection. Conclusion Flap type and postoperative wound infection were both independent risk factors influencing the flap survival rate in the foot and ankle. However, postoperative wound infection was a risk factor for the pedicled flap but not for the free flap. Microvascular anastomosis is a major cause of free flap necrosis. To reconstruct complex or wide soft tissue defects of the foot or ankle, free flaps are safer and more reliable than pedicled flaps and should thus be the primary choice.
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Affiliation(s)
- Xiucun Li
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Jianli Cui
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Suraj Maharjan
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Laijin Lu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Xu Gong
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin Province, P.R. China
- * E-mail:
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