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Pattisapu N, Huang DT, Porter G, Owhonda R, Charlton T, Gross C, Thordarson D, Metzger MF. Polymethylmethacrylate (PMMA) Augmentation Enhances the Mechanical Characteristics of Midfoot Beam Constructs in Charcot Neuroarthropathy Cadaver Model. Foot Ankle Int 2024:10711007241237804. [PMID: 38501724 DOI: 10.1177/10711007241237804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
BACKGROUND Even with the best conservative care, patients with Charcot neuroarthropathy (CN) of the foot and ankle often ulcerate, increasing their risk of infection, amputation, and death. Surgical fixation has been associated with risk of recurrent ulceration, potentially due to poor bone quality prone to recurrent deformity and ulceration. We propose midfoot beam reconstruction with PMMA augmentation as a novel means of improving fixation. METHODS A protocol was developed to create characteristic CN midfoot fragmentation both visually and fluoroscopically in each of 12 matched-pair cadaveric feet. Afterward, the pairs were divided into 2 groups: (1) midfoot beam fusion surgery alone, and (2) midfoot beam fusion surgery augmented with PMMA. A solid 7.0-mm beam was placed into the medial column and a solid 5.5-mm beam was placed across the lateral column. In the PMMA group, 8 to 10 mL of PMMA was inserted into the medial column. The hindfoot of each specimen was potted and the metatarsal heads were cyclically loaded for 1800 cycles, followed by load to failure while load and displacement were continually recorded. RESULTS One specimen in the beam alone group failed before reaching the 1800th cycle and was not included in the failure analysis. The midfoot beam only group demonstrated greater mean displacement during cycle testing compared with the PMMA group, P < .05. The maximum force (N), stiffness (N/mm), and toughness (Nmm) were all significantly greater in the group augmented with PMMA, P < .05. CONCLUSION In a CN cadaveric model, PMMA augmentation significantly decreased gapping during cyclic loading and nearly doubled the load to failure compared with midfoot beams alone. CLINICAL RELEVANCE The results of this biomechanical study demonstrate that augmentation of midfoot beams with PMMA increases the strength and stiffness of the fusion construct. This increased mechanical toughness may help reduce the risk of nonunion and infection in patients with neuropathic midfoot collapse.
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Affiliation(s)
- Naveen Pattisapu
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Dave T Huang
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Orthopaedic Biomechanics Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Giselle Porter
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Rebisi Owhonda
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Timothy Charlton
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Christopher Gross
- Department of Orthopaedic Surgery, Medical University of South Carolina, Charleston SC, USA
| | - David Thordarson
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Melodie F Metzger
- Department of Orthopaedic Surgery, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Orthopaedic Biomechanics Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Von Glinski A, Frieler S, Elia CJ, Ansari D, Pierre C, Ishak B, Blecher R, Qutteineh B, Strot S, Oskouian RJ, Chapman JR. Surgical Management of Charcot Spinal Arthropathy in the Face of Possible Infection. Int J Spine Surg 2021; 15:752-762. [PMID: 34315758 DOI: 10.14444/8097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The design is a retrospective cohort study. Charcot spinal arthropathy (CSA) is a rare and poorly understood progressive destructive spine condition that usually affects patients with preexisting spinal cord injury. The complexity of this condition, especially when additionally burdened by superimposed infection in the CSA zone, can potentially lead to suboptimal management such as protracted antibiotic therapy, predisposition to hardware failure, and pseudarthrosis. While in noninfected CSA primary stabilization is the major goal, staged surgical management has not been stratified based upon presence of a superinfected CSA. We compare clinical and radiological outcomes of surgical treatment in CSA patients with and without concurrent spinal infections. METHODS Our single-institution database was reviewed for all patients diagnosed with CSA and surgically treated, who were subsequently divided into 2 cohorts: spinal arthropathy with superimposed infection and those without. Those were comparatively studied for complications and reoperation rate. RESULTS Fifteen patients with CSA underwent surgical intervention; mean follow up of 15.3 months (range, 0-43). Eleven patients received stabilization with a quadruple-rod thoracolumbopelvic construct, while 4 patients with superinfected CSA underwent a staged procedure. Patients treated with a staged approach experienced fewer intraoperative complications (0% versus 18%) and fewer revision surgeries (25% versus 36%). Both cohorts had the same eventual healing. CONCLUSIONS Surgical management in CSA patients with primary emphasis on stability and modified surgical treatment based on presence of an active infection in the zone of neuropathic destruction will lead to similar eventual successful results with relatively few and manageable complications in this challenging patient population. LEVEL OF EVIDENCE 4. CLINICAL RELEVANCE The proposed treatment algorithm including the use of a quadruple-rod construct with lumbopelivic fixation and a staged approach in patients with superinfected CSA represents a reasonable option in the surgical treatment of CSA.
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Affiliation(s)
- Alexander Von Glinski
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington.,Department of Trauma Surgery, BG University Hospital Bergmannsheil, Ruhr University Bochum, Bochum, Germany.,Hansjörg Wyss Hip and Pelvic Center, Swedish Hospital, Seattle, Washington
| | - Sven Frieler
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington.,Department of Trauma Surgery, BG University Hospital Bergmannsheil, Ruhr University Bochum, Bochum, Germany.,Hansjörg Wyss Hip and Pelvic Center, Swedish Hospital, Seattle, Washington
| | - Christopher J Elia
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington.,Department of Neurosurgery, Riverside University Health Systems, Moreno Valley, California
| | - Darius Ansari
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington
| | - Clifford Pierre
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington
| | - Basem Ishak
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington.,Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Ronen Blecher
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington
| | - Bilal Qutteineh
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington
| | - Sarah Strot
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington
| | - Rod J Oskouian
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington.,Seattle Science Foundation, Seattle, Washington
| | - Jens R Chapman
- Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington
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Bitenc-Jasiejko A, Konior K, Gonta K, Dulęba M, Lietz-Kijak D. Prophylaxis of Pain and Fractures within Feet in the Course of Osteoporosis: The Issue of Diagnosing. Pain Res Manag 2020; 2020:1391026. [PMID: 33312316 DOI: 10.1155/2020/1391026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/10/2020] [Accepted: 11/10/2020] [Indexed: 11/17/2022]
Abstract
Background Considering the enormous risk of fractures in the course of osteoporosis in the area of the feet, an important aspect of prophylaxis is periodic and, in special cases, ongoing monitoring of defects and deformations as well as pressure distribution. The purpose of this article is to indicate the role of the examination of posture and pressure distribution during standing, postural balance, and gait, in the prevention of fatigue fractures in the course of osteoporosis, based on the literature review and examples of patients. Methods The manuscript consists of two parts; it has a review-analytical character. The first part reviews the literature. The data were obtained using the MEDLINE (PubMed), as well as Cochrane and Embase databases. The database review was carried out focusing mainly on English-language publications, while taking into account the topicality of scientific and research works in the area of osteoporosis. The problem of multiaspects in the area of bone density was pointed out. Considering the above, in the second part, the authors analyzed 11 exemplary patients with osteoporosis, referring to the assessment of foot and lower limb defects using traditional posturological methods and including pedobarography to diagnostic procedures that are used in the assessment of pressure distribution, standing and moving, and an attempt to balance. Results Analysis of the research and scientific literature proved the lack of unambiguous diagnostic procedures of the locomotor system recommended for the prevention of fatigue fractures in the course of osteoporosis. The main diagnostic recommendations are imaging tests (most often X-ray), which are recommended in the case of specific clinical symptoms. The analysis of exemplary patients with osteoporosis showed numerous disorders in the distribution of pressure in the plantar part of the feet, which are related, among other things, with their individual defects and lower limbs. Conclusions Detailed posture diagnostics and gait estimation, along with the analysis of pressure distribution within the feet are a very important aspect of the prevention of structural degradation and fatigue fractures within the feet. An important postulate for further research and scientific work is the elaboration of the procedures that will serve the preventive diagnostics of the locomotor system, aimed at early detection of threats of fatigue fractures.
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Cho JH, Min TH, Chun DI, Won SH, Park SY, Kim K, Yi Y. Bone Mineral Density in Diabetes Mellitus Foot Patients for Prediction of Diabetic Neuropathic Osteoarthropathic Fracture. J Bone Metab 2020; 27:207-215. [PMID: 32911585 PMCID: PMC7571244 DOI: 10.11005/jbm.2020.27.3.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/20/2020] [Indexed: 11/30/2022] Open
Abstract
Background Diabetic neuropathic osteoarthropathy (DNOAP) is known as debilitating diabetes complications. The aim of study is to compare bone mineral density (BMD) among diabetic foot and DNOAP, and investigate the impact of BMD proceeded from diabetic foot to DNOAP. Methods A DNOAP group (subgroup A and subgroup B) and control group were examined for this study. Subgroup A (n=21) were patients diagnosed with DNOAP with the development of new foot and ankle fractures, whereas subgroup B (n=4) were patients being managed with the diabetic foot before a diagnosis of DNOAP. BMD was also evaluated before the diagnosis. Control group (n=30) was diabetic foot patients without DNOAP. The demographic data, clinical and radiologic data, comorbidities, and BMD were compared for each group. And optimal BMD score was reviewed to predict fractures in neuropathic arthropathy. Results BMD was significantly lower in DNOAP group (group A and B) compared with control group. Also neuropathic arthropathy group showed poor radiological results. After comparisons of 2 group lumbar and femur BMD was significantly different, but logistic regression analysis revealed that low femur T-score could be risk predictors of the condition. Base on the data of group B and control group, the cut-off point for predicting foot and ankle fracture-related with DNOAP was -1.65 of femur BMD. Conclusions Low BMD shows greater incidence in foot and ankle fracture patients associated with neuropathic arthropathy. A femur T score can be a risk predictor of diabetic neuropathic arthropathy for diabetic foot patients.
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Affiliation(s)
- Jae-Ho Cho
- Department of Orthopaedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Korea
| | - Tae-Hong Min
- Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Dong-Il Chun
- Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Sung-Hun Won
- Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Su Yeon Park
- Department of Biostatistics, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Kwonwoo Kim
- Department of Health Administration, Sejong Public Health Center, Sejong, Korea
| | - Young Yi
- Department of Orthopaedic Surgery, Seoul Foot and Ankle Center, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
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Kim YK, Lee HS, Seo SG, Park SH, Boedijono D. Comments on the Article "Results of Simple Conservative Treatment of Midfoot Charcot Arthropathy": In Reply. Clin Orthop Surg 2020; 12:269-270. [PMID: 32489554 PMCID: PMC7237247 DOI: 10.4055/cios20025re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Abstract
Background Traditionally, conservative management with an offloading orthosis, such as total contact cast (TCC), has been the standard of care for midfoot Charcot arthropathy. Considering complications of TCC and surgery, we treated midfoot Charcot arthropathy without TCC in our patients. The purpose of this study was to report clinical and radiological outcomes of conservative management of midfoot Charcot arthropathy. Methods A total of 34 patients (38 feet) who were diagnosed as having midfoot Charcot arthropathy between 2006 and 2014 were included. Patients started full weight bearing ambulation in a hard-soled shoe immediately after diagnosis. Outcomes such as progression of arch collapse, bony prominence, ulcer occurrence, limb amputation, and changes in Charcot stage were evaluated. Results Of 38 feet, arch collapse was observed in four while progression of bottom bump of the midfoot was observed in five feet. Foot ulcers related to bony bumps were found in two feet. Conclusions Conservative treatment without restriction of ambulation is recommended for midfoot Charcot arthropathy because it is rarely progressive, unlike hindfoot-ankle arthropathy. In some cases, simple bumpectomy can be required to prevent catastrophic infection.
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Affiliation(s)
- You Keun Kim
- Department of Orthopedic Surgery, Godoil Hospital, Seoul, Korea
| | - Ho Seong Lee
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sang Gyo Seo
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seung-Hwan Park
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dimas Boedijono
- Department of Orthopedic and Traumatology, Foot and Ankle, Musculoskeletal Clinic, Fatmawati General Hospital, Jakarta, Indonesia
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