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1.
Diagnostics (Basel) ; 13(9)2023 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-37174983

RESUMO

Both musculoskeletal gossypibomas and chronic expanding hematomas have been rarely reported; the reports that do exist are usually case reports. Our objective is to demonstrate problematic imaging diagnostics of an unusual presentation mimicking a malignant lesion. We report the case of a 47-year-old man who underwent bone graft harvesting from the iliac crest for spinal fusion due to scoliosis at 18 years of age, and 29 years later, he developed a growing, painful tumor at the original donor site (a bone defect in the iliac crest). It was challenging to differentiate a hematoma from a malignant tumor based solely on clinical and radiological workup, including an ultrasound-guided needle biopsy focused on viable tissue. The definitive diagnosis of a gossypiboma with a chronic expanding hematoma was based on histopathological assessment after wide surgical resection-a chronic expanding hematoma with multiple foamy macrophages and giant cells engulfing foreign material (original surgical hemostatic sponge).

2.
J Int Med Res ; 50(5): 3000605221097369, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35615788

RESUMO

The majority of adults with mild osteogenesis imperfecta report significant functional impairment due to musculoskeletal concerns. Knee osteoarthritis is common in these patients. Although total knee arthroplasty has become a highly efficient surgical technique for osteoarthritis, this procedure remains uncommon in patients with osteogenesis imperfecta. This current case report describes the important clinical aspects of osteogenesis imperfecta that must be considered during the planning and performance of a total knee replacement. A 62-year-old female patient with a history of osteogenesis imperfecta suffered from severe osteoarthritis of the knee with valgus deformity. Two years after posterior stabilized total knee arthroplasty, her Hospital for Special Surgery knee score had improved from preoperative 53 points to 85 points at the final follow-up. The current case report describes the crucial technical aspects of a successful total knee replacement in this uncommon scenario. Underlying deformities and concomitant pathologies constitute specific surgical challenges. Special care should be taken to protect the patient from potential complications.


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho , Osteogênese Imperfeita , Adulto , Artroplastia do Joelho/métodos , Feminino , Humanos , Joelho , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/cirurgia , Pessoa de Meia-Idade , Osteoartrite do Joelho/complicações , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/cirurgia , Osteogênese Imperfeita/complicações , Osteogênese Imperfeita/cirurgia
3.
Clin Interv Aging ; 16: 1869-1876, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34737554

RESUMO

INTRODUCTION: The present study compares the outcome of the long cemented stem and the revision uncemented stem used in periprosthetic femoral fractures. We propose that the revision with a long stem cemented prosthesis does not compromise fracture healing. PATIENTS AND METHODS: A consecutive series of 37 patients, operated between 2010 and 2017, were enrolled in a retrospective analysis. A long cemented stem was implanted in 21 patients (study group; age at operation: 63 to 89 years). A distally tapered fluted uncemented stem was used in 16 patients (control group; age at operation: 35 to 77 years). The clinical outcome was evaluated with Merle d'Aubigné and Postel scoring system. Standard radiographs were taken before surgery, at 3, 6, and 12 months postoperatively, and last follow-up. Any and all complications during the follow-up period were recorded. RESULTS: Although a significant difference (P = 0.006) was observed in the post-operative Merle d´Aubigné score over the 12-month follow-up period, no significant difference (P = 0.066) was found in the post-operative pain score between the study and control groups. Periodic radiographic assessments showed the disappearance of radiolucent lines and the diaphyseal part of the fracture was healed in all 34 followed-up cases during the first annual follow-up. Early surgical complications were seen in both groups, the medical complications were observed only in the study group. CONCLUSION: Based on our results, periprosthetic fractures of the femur after a total hip arthroplasty were associated with significant morbidity and increased mortality in elderly patients. Revision with a long-stem cemented prosthesis provided early pain-free weight-bearing without compromising the healing of femoral fractures in elderly patients with osteoporotic bone, altered mobility, poor balance, and reduced cognitive capacity.


Assuntos
Artroplastia de Quadril , Fraturas do Fêmur , Prótese de Quadril , Fraturas Periprotéticas , Idoso , Idoso de 80 Anos ou mais , Artroplastia de Quadril/efeitos adversos , Fraturas do Fêmur/cirurgia , Fêmur/cirurgia , Humanos , Pessoa de Meia-Idade , Fraturas Periprotéticas/cirurgia , Reoperação , Estudos Retrospectivos
4.
Ther Clin Risk Manag ; 17: 275-283, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33833516

RESUMO

BACKGROUND: Spondyloepiphyseal dysplasia is the clinical term applied to a group of rare genetic disorders with primary involvement of the vertebrae and epiphyses, predisposing the afflicted individuals toward the premature development of osteoarthritis. There are few reports concerning joint replacement therapy in these patients, particularly describing the role of total hip arthroplasty. In this report, we describe the anatomical and technical aspects of spondyloepiphyseal dysplasia that must be considered during surgical planning and performance of total knee arthroplasty. CASE PRESENTATION: A 49-year old woman with a history of spondyloepiphyseal dysplasia suffered from severe osteoarthritis of the knee and irreducible congenital dislocation of the patella. After careful preoperative evaluations and planning, the knee joint deformity was solved by knee joint replacement with realignment of the extensor mechanism using quadricepsplasty. After 2 years of surgery, the patient showed no pain and was able to walk with the help of elbow crutches. The Hospital for Special Surgery knee score increased from preoperative 51 points to 85 points during the final follow-up. The postoperative range of motion increased to final flexion of 0-115°. CONCLUSION: The advances made so far in the medical care for patients with skeletal dysplasia have improved their overall survival during adulthood. The case report described herein demonstrates the numerous challenges and technical aspects of a successful total knee arthroplasty in cases of spondyloepiphyseal dysplasia, highlighting the need to consider skeletal and soft tissue abnormalities of skeletal dysplasia during the planning and performance of joint replacement surgery.

5.
Ther Clin Risk Manag ; 15: 597-603, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31118647

RESUMO

The restoration of the lower extremity mechanical axis in patients with osteoarthritis in knee and extra-articular deformity requires careful pre-operative planning. An extra-articular deformity may be corrected inside the knee by arthroplasty with intra-articular correction or outside of the knee by osteotomy alone or by arthroplasty combined with extra-articular corrective osteotomy. In this study, we described a unique case of simultaneous femoral and tibial osteotomies at the time of primary total knee arthroplasty in a 45-year-old woman. To prevent unnecessary bone loss, the intra-articular bone resections were made parallelly to the preexisting joint obliquity prior to the corrective tibial and femoral osteotomies. After restoration of the mechanical axis and healing of all osteotomies, a successful clinical and radiological outcome was achieved during the mid-term 5-year follow-up. The preoperative analysis of patients with an extra-articular deformity is invaluable and should include long-standing radiographs from the center of the femoral head to the center of the ankle. Although different osteotomy principles (opening wedge vs closing wedge) and fixation methods (stemmed revision prosthesis, intramedullary nail, locking plates) have been reported in the literature, the use of a tapered fluted long stem offers several benefits, including ease of application, rotational control, and possible early weight bearing. Total knee arthroplasty in combination with simultaneous extra-articular osteotomy is technically difficult but effective. This technique helps to preserve bone stock and ligament stability. A single intervention leads to less recovery time, reduced risk to the patients by avoiding two separate applications of anesthesia, and reduced costs. Based on the literature search, this is the first report describing the detailed surgical technique of simultaneous femoral and tibial osteotomies at the time of primary total knee arthroplasty associated with tibial tubercle osteotomy, achieving a comprehensive correction.

6.
Cell Transplant ; 27(10): 1459-1468, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30203687

RESUMO

This prospective study sought to evaluate the healing quality of implanted ultraporous ß-tricalcium phosphate sown with expanded autologous mesenchymal stromal cells (MSCs) into femoral defects during revision hip arthroplasty. A total of 37 osseous defects in 37 patients were treated and evaluated concerning bone regeneration. Nineteen subjects received ß-tricalcium phosphate graft material serving as a carrier of expanded autologous MSCs (the trial group A), nine subjects received ß-tricalcium phosphate graft material only (the study group B) and nine subjects received cancellous allografts only (the control group C). Clinical and radiographic evaluations were scheduled at 6 weeks, 3, 6, and 12 months post-operatively, and performed at the most recent visit as well. All observed complications were recorded during follow-up to assess the use of an ultraporous ß-tricalcium phosphate synthetic graft material combined with expanded MSCs in bone defect repair. The resulting data from participants with accomplished follow-up were processed and statistically evaluated with a Freeman-Halton modification of the Fischer's exact test, a P < 0.05 value was considered to be significant. Whereas no significant difference was observed between the trial group A with ß-tricalcium phosphate synthetic graft material serving as a carrier of expanded autologous MSCs and control group C with cancellous impaction allografting in terms of the bone defect healing, significant differences were documented between the study group B with ß-tricalcium phosphate graft material only and control group C. Regarding adverse effects, six serious events were recorded during the clinical trial with no causal relationship to the cell product. ß-tricalcium phosphate synthetic graft material serving as a carrier of expanded autologous MSCs appears safe and promotes the healing of bone defects in a jeopardized and/or impaired microenvironment. This clinical trial was registered at the EU Clinical Trials Register before patient recruitment (Registration number: EudraCT number 2012-005599-33; Date of registration: 2013-02-04).


Assuntos
Regeneração Óssea , Substitutos Ósseos/uso terapêutico , Fosfatos de Cálcio/uso terapêutico , Fêmur/lesões , Fêmur/cirurgia , Transplante de Células-Tronco Mesenquimais/métodos , Alicerces Teciduais/química , Adulto , Idoso , Substitutos Ósseos/química , Fosfatos de Cálcio/química , Feminino , Fêmur/citologia , Fêmur/fisiologia , Humanos , Masculino , Células-Tronco Mesenquimais/citologia , Pessoa de Meia-Idade , Resultado do Tratamento
7.
Parkinsons Dis ; 2017: 1597463, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29090105

RESUMO

INTRODUCTION: The aim of the study was to compare the clinical outcomes following elective and traumatic total hip arthroplasty in Parkinson's disease patients. MATERIALS AND METHODS: Ten patients with osteoarthritis comprise the elective group (mean age at operation 74 years; mean follow-up 82 months). Thirteen patients with femoral fracture comprise the hip fracture group (mean age 76 years; mean follow-up 54 months). All patients were followed up at 6 and 36 months postoperatively and at the time of the latest follow-up. RESULTS: Despite the significant improvement in Merle d'Aubigné-Postel and pain scores, disability related to Parkinson's disease increased during the follow-up. Whereas more than 1/3 of hip fracture patients and all elective patients walked independently at 36 months after total hip arthroplasty, 43% of living patients from both groups were able to walk independently at the time of the latest follow-up. The medical complications were seen mainly in patients with hip fracture. CONCLUSIONS: Excellent pain relief with preserved walking ability without support of another person and acceptable complication profile was observed in Parkinson's disease patients at 36 months after elective total hip arthroplasty. This procedure may be indicated in Parkinson's disease patients after careful and individualized planning.

8.
BMC Musculoskelet Disord ; 18(1): 381, 2017 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-28865450

RESUMO

BACKGROUND: Musculoskeletal infections remain a major complication in orthopedic surgery. The local delivery of antibiotics provides the high levels required to treat an infection without systemic toxicity. However, the local toxicity of antibiotic carriers to the mesenchymal stem cells, as a result of both the peak concentrations and the type of carrier, may be significant. METHODS: To address this concern, the elution kinetics of vancomycin and gentamicin from several commercially available antibiotic carriers and several carriers impregnated by a surgeon (10 ml of each sterile carrier were manually mixed with a 500 mg vancomycin and an 80 mg gentamicin solution, and the duration of impregnation was 30 min) were assessed. Moreover, the effects of these antibiotic carriers on stem cell proliferation were investigated. The following two types of stem cells were used: bone marrow and dental pulp stem cells. RESULTS: The high eluted initial concentrations from antibiotic impregnated cancellous allogeneic bone grafts (which may be increased with the addition of fibrin glue) did not adversely affect stem cell proliferation. Moreover, an increased dental pulp stem cell proliferation rate in the presence of antibiotics was identified. In contrast to allogeneic bone grafts, a significant amount of antibiotics remained in the cement. Despite the favorable elution kinetics, the calcium carriers, bovine collagen carrier and freeze-dried bone exhibited decreased stem cell proliferation activity even in lower antibiotic concentrations compared with an allogeneic graft. CONCLUSIONS: This study demonstrated the benefits of antibiotic impregnated cancellous allogeneic bone grafts versus other carriers.


Assuntos
Antibacterianos/farmacocinética , Cimentos Ósseos/farmacocinética , Proliferação de Células/efeitos dos fármacos , Gentamicinas/farmacocinética , Células-Tronco Mesenquimais/efeitos dos fármacos , Vancomicina/farmacocinética , Animais , Antibacterianos/administração & dosagem , Proliferação de Células/fisiologia , Estudos de Coortes , Portadores de Fármacos/administração & dosagem , Portadores de Fármacos/farmacocinética , Gentamicinas/administração & dosagem , Cavalos , Humanos , Cinética , Células-Tronco Mesenquimais/metabolismo , Vancomicina/administração & dosagem
9.
J Diabetes Res ; 2016: 3207043, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27656656

RESUMO

Charcot neuropathic osteoarthropathy of the foot is a relatively common complication of diabetic neuropathy. Incorrect diagnosis and improper treatment often result in the extremity having to be amputated. This paper summarises the current view on the etiology, diagnostics, and treatment of diabetic Charcot neuropathic osteoarthropathy, with particular focus on preserving the extremity through surgical intervention from our own experiences.

10.
Biomed Res Int ; 2016: 2076061, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27144159

RESUMO

The purpose of this prospective controlled study was to compare healing quality following the implantation of ultraporous ß-tricalcium phosphate, containing either expanded autologous mesenchymal stromal cells (trial group, 9 patients) or ß-tricalcium phosphate alone (control group, 9 patients), into femoral defects during revision total hip arthroplasty. Both groups were assessed using the Harris Hip Score, radiography, and DEXA scanning at 6 weeks and 3, 6, and 12 months postoperatively. A significant difference in the bone defect healing was observed between both groups of patients (P < 0.05). In the trial group, trabecular remodeling was found in all nine patients and in the control group, in 1 patient only. Whereas, over the 12-month follow-up period, no significant difference was observed between both groups of patients in terms of the resorption of ß-tricalcium phosphate, the significant differences were documented in the presence of radiolucency and bone trabeculation through the defect (P < 0.05). Using autologous mesenchymal stromal cells combined with a ß-tricalcium phosphate scaffold is a feasible, safe, and effective approach for management of bone defects with compromised microenvironment. The clinical trial was registered at the EU Clinical Trials Register before patient recruitment has begun (EudraCT number 2012-005599-33).


Assuntos
Artroplastia de Quadril , Fosfatos de Cálcio/uso terapêutico , Transplante de Células-Tronco Mesenquimais/métodos , Transplante Autólogo , Idoso , Regeneração Óssea/fisiologia , Remodelação Óssea/efeitos dos fármacos , Remodelação Óssea/fisiologia , Osso Esponjoso/efeitos dos fármacos , Osso Esponjoso/fisiopatologia , Osso Esponjoso/cirurgia , Feminino , Fêmur/fisiopatologia , Fêmur/cirurgia , Humanos , Masculino , Células-Tronco Mesenquimais , Pessoa de Meia-Idade , Alicerces Teciduais/química , Resultado do Tratamento
11.
Vnitr Lek ; 61(6): 567-70, 2015 Jun.
Artigo em Tcheco | MEDLINE | ID: mdl-26258973

RESUMO

While a joint implant is the method of choice for numerous locomotor disorders and it is indicated for diabetic patients based on the same rules as for patients without diabetes mellitus, a joint implant in diabetic patients is associated with a high risk of perioperative complications. Considering a very difficult and demanding treatment of a deep infection of a joint replacement, the prevention of complications plays the key role. A precondition for adequate perioperative preparation and correctly managed perioperative and postoperative care of patients with diabetes mellitus is the close cooperation of the orthopedist, diabetologist and anesthesiologist, who in their practice have to respect the specificities of their diabetic patients presented in submitted reports.Key words: arthroplasty - complication - diabetes mellitus.

12.
Vnitr Lek ; 61(6): 599-603, 2015 Jun.
Artigo em Tcheco | MEDLINE | ID: mdl-26258980

RESUMO

The basic prerequisite for the successful treatment of the diabetic foot is a multidisciplinary approach. Ideally, the diagnosis and treatment is managed by a podiatrist, who is also responsible for a cost-effective and well-managed setting. General concern of diabetics is the fear of losing a limb. On the basis of multidisciplinary approach is pos-sible to prevent major amputations in many cases, or in case of them to ensure the prosthetic and rehabilitation care. New possibilities of revascularization and cooperation with antibiotic centers increase the success of surgical treatment of diabetic foot syndrome. Surgical procedures could be divided into four classes: elective, prophylactic, curative, emergent. The aim of elective operations is the correction of painful deformities that are at risk for the formation of ulcers. Surgical procedures are the same as in non-diabetics. Prophylactic procedures comprises reconstruction of Charcot foot. Special surgical procedures described the concept of "superconstruct". Curative procedures help to heal ulcers when conservative treatment fails. Type of procedure is planned with regard of the extent of osteomyelitis and of the intervention in architectonics of the foot to prevent a recurrence of the ulcer. Emergent procedures are performed in case of acute infection. Radical revision of all affected compartments with evacuation of the abscesses, adequate antibiotic therapy and revascularization are essential.Key words: amputation - diabetic foot - Charcot neuroarthropathy - osteomyelitis.

13.
Skeletal Radiol ; 44(1): 63-71, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25231169

RESUMO

OBJECTIVE: The purpose of the present study was to evaluate the role of diagnostic tools and management options for patients with pyogenic sacroiliitis, including potential complications. MATERIALS AND METHODS: This retrospective study included 16 patients with pyogenic sacroiliitis who were admitted to a single orthopaedic centre between 2007 and 2012. The following data were collected: demographics, history, radiography, magnetic resonance images (MRI), biological data, type of pathogenic agent, abscess formation, type of management, and clinical outcome. RESULTS: Our study demonstrated that only one-fifth of the patients with lumbogluteal or hip pain had established diagnoses of suspected pyogenic sacroiliitis upon admission. MRIs confirmed this diagnosis in all cases. MRI examinations revealed joint fluid in the sacroiliac joint and significant oedema of the adjacent bone and soft tissues. In 12 of the 16 cases, erosions of the subchondral bone were encountered. Contrast-enhanced MRI revealed that 9 patients had abscesses. All patients received antibiotic therapy. Antibiotic treatment was only successful in 9 cases. The other 7 patients underwent computed tomography (CT)-guided abscess drainage. Drainage was sufficient for 4 patients, but 3 patients required open surgery. One patient required sacroiliac arthrodesis. The clinical outcomes included minimal disability (n = 10), moderate disability (n = 5), and full disability (n = 1) of the spine. CONCLUSIONS: Contrast-enhanced MRI is mandatory for a reliable diagnosis. Abscess formation was observed in approximately half of the MRI-diagnosed sacroiliitis cases and required minimally invasive drainage under CT guidance or frequently open surgery.


Assuntos
Antibacterianos/uso terapêutico , Artrodese/métodos , Drenagem/métodos , Imageamento por Ressonância Magnética/métodos , Sacroileíte/diagnóstico , Sacroileíte/terapia , Adolescente , Adulto , Terapia Combinada/métodos , Feminino , Humanos , Masculino , Prognóstico , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Adulto Jovem
14.
J Cell Mol Med ; 18(5): 832-43, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24444357

RESUMO

Bone marrow-derived cells represent a heterogeneous cell population containing haematopoietic stem and progenitor cells. These cells have been identified as potential candidates for use in cell therapy for the regeneration of damaged tissues caused by trauma, degenerative diseases, ischaemia and inflammation or cancer treatment. In our study, we examined a model using whole-body irradiation and the transplantation of bone marrow (BM) or haematopoietic stem cells (HSCs) to study the repair of haematopoiesis, extramedullary haematopoiesis and the migration of green fluorescent protein (GFP(+)) transplanted cells into non-haematopoietic tissues. We investigated the repair of damage to the BM, peripheral blood, spleen and thymus and assessed the ability of this treatment to induce the entry of BM cells or GFP(+) lin(-) Sca-1(+) cells into non-haematopoietic tissues. The transplantation of BM cells or GFP(+) lin(-) Sca-1(+) cells from GFP transgenic mice successfully repopulated haematopoiesis and the haematopoietic niche in haematopoietic tissues, specifically the BM, spleen and thymus. The transplanted GFP(+) cells also entered the gastrointestinal tract (GIT) following whole-body irradiation. Our results demonstrate that whole-body irradiation does not significantly alter the integrity of tissues such as those in the small intestine and liver. Whole-body irradiation also induced myeloablation and chimerism in tissues, and induced the entry of transplanted cells into the small intestine and liver. This result demonstrates that grafted BM cells or GFP(+) lin(-) Sca-1(+) cells are not transient in the GIT. Thus, these transplanted cells could be used for the long-term treatment of various pathologies or as a one-time treatment option if myeloablation-induced chimerism alone is not sufficient to induce the entry of transplanted cells into non-haematopoietic tissues.


Assuntos
Células da Medula Óssea/citologia , Transplante de Medula Óssea , Quimerismo , Trato Gastrointestinal/fisiologia , Transplante de Células-Tronco Hematopoéticas , Regeneração , Irradiação Corporal Total , Animais , DNA/metabolismo , Citometria de Fluxo , Trato Gastrointestinal/citologia , Proteínas de Fluorescência Verde/metabolismo , Hematopoese , Células-Tronco Hematopoéticas/citologia , Intestino Delgado/citologia , Intestino Delgado/fisiologia , Fígado/citologia , Camundongos Endogâmicos C57BL , Modelos Biológicos
15.
Acta Medica (Hradec Kralove) ; 57(3): 105-11, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25649365

RESUMO

BACKGROUND: Though mid-term survival rates of over 95% in several series have been published, there is still a paucity of related literature regarding the role of vertical stem instability in the osteointegration of fluted tapered stems. This paper presents a comprehensive and prospective assessment on short-term experiences with uncemented modular femoral stem in the treatment of defective femur during revision surgery of total hip replacement. MATERIALS AND METHODS: Clinical and radiological monitoring of 20 consecutive patients with implanted tapered fluted revision stem (Lima Corporate, Udine, Italy) was of 27 months in average (20-35 months). The average pre-operative Merle d'Aubigné and Postel method score was 6.3 points (3-10 points). The frequency of femur defects, classified according to Paprosky, was IIIA = 9 and IIIB = 11. RESULTS: During last follow-up, the Merle d'Aubigné and Postel hip score was on average 11.7 (6-16 points). Compared to post-operation radiograph, stem migration of 1.9 mm (0-11 mm) on average was found. This vertical stem migration was observed only when comparing hip radiographs immediately after surgery, and at 6 weeks post-surgery. The Paprosky IIIA defects group, presented a subsided stem by an average of 1.5 mm. In the group of Paprosky IIIB defects, the stem subsidence was on average 2.3 mm. All 20 patients in the study showed excellent osteointegration of the uncemented revision modular stem. CONCLUSIONS: This study found and excellent osteointegration of the Lima uncemented tapered fluted revision modular stem in defective femur with a cortical bone segment present in the diaphyseal isthmus area. The initial vertical instability leading to stem migrating during the first six weeks following surgery did not, however, affect its osteointegration.


Assuntos
Artroplastia de Quadril , Articulação do Quadril/diagnóstico por imagem , Instabilidade Articular , Complicações Pós-Operatórias/cirurgia , Reoperação , Idoso , Artroplastia de Quadril/métodos , República Tcheca , Feminino , Articulação do Quadril/cirurgia , Humanos , Instabilidade Articular/diagnóstico , Instabilidade Articular/etiologia , Instabilidade Articular/cirurgia , Masculino , Pessoa de Meia-Idade , Dispositivos de Fixação Ortopédica , Complicações Pós-Operatórias/diagnóstico , Falha de Prótese , Radiografia , Recuperação de Função Fisiológica , Reoperação/efeitos adversos , Reoperação/instrumentação , Reoperação/métodos , Estudos Retrospectivos , Resultado do Tratamento
16.
Acta Medica (Hradec Kralove) ; 57(3): 127-32, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25649368

RESUMO

Our case-based review focuses on limb salvage through operative management of Charcot neuroarthropathy of the diabetic foot. We describe a case, when a below-knee amputation was considered in a patient with chronic Charcot foot with a rocker-bottom deformity and chronic plantar ulceration. Conservative treatment failed. Targeted antibiotic therapy and operative management (Tendo-Achilles lengthening, resectional arthrodesis of Lisfranc and midtarsal joints, fixation with large-diameter axial screws, and plaster cast) were performed. On the basis of this case, we discuss options and drawbacks of surgical management. Our approach led to healing of the ulcer and correction of the deformity. Two years after surgery, we observed a significant improvement in patient's quality of life. Advanced diagnostic and imaging techniques, a better understanding of the biomechanics and biology of Charcot neuroarthropathy, and suitable osteosynthetic material enables diabetic limb salvage.


Assuntos
Antibacterianos/administração & dosagem , Artropatia Neurogênica , Diabetes Mellitus Tipo 1/complicações , Pé Diabético , Salvamento de Membro/métodos , Idoso , Artrodese/métodos , Artropatia Neurogênica/etiologia , Artropatia Neurogênica/fisiopatologia , Artropatia Neurogênica/cirurgia , Terapia Combinada , Pé Diabético/complicações , Pé Diabético/fisiopatologia , Pé Diabético/cirurgia , Feminino , Pé/diagnóstico por imagem , Humanos , Osteotomia/métodos , Radiografia , Resultado do Tratamento
17.
Eur J Orthop Surg Traumatol ; 24(3): 257-62, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24101189

RESUMO

Despite the undisputed modern development of synthetic biomaterials that range from bioactive unresorbable to restorable materials, clinically applied osteoconduction bone substitutes still have limitations in the treatment of bone defects. These are the result of the physical and chemical properties of the utilized materials and the biological interactions associated with both local and general reactions of the organism. Mesenchymal stem cells constitute a promising treatment alternative in orthopedics. Preclinical studies regarding the use of mesenchymal stem cells have shown good therapeutic results. However, it is still necessary to advance further in this area and enable the treatment of patients with critically large bone defects. The aim of this review is to describe the role of mesenchymal stem cells in bone repair and regeneration, describe the techniques used in the clinical application of mesenchymal stem cells and outline future research endeavors in this area.


Assuntos
Regeneração Óssea , Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais/fisiologia , Doenças Ósseas/terapia , Diferenciação Celular , Humanos , Engenharia Tecidual
18.
Eur J Orthop Surg Traumatol ; 24(8): 1357-65, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24091824

RESUMO

This report describes the histological characteristics of large human bone defects that were implanted with ß-tricalcium phosphate (ß-TCP). Samples were obtained longer after the primary operation than in the earlier studies. We assessed a total of nine biopsies taken 33-208 weeks after implantation. The tissue sections were stained with hematoxylin-eosin for general observation, with Gomori stain to visualize the reticulin fibers, and with an antibody against tartrate-resistant alkaline phosphatase (TRAP) to characterize the cells. Ongoing bone remodeling was observed even 208 weeks after implantation as determined by the presence of osteoclasts and active osteoblasts and new woven and lamellar bone. We observed multinuclear giant cells phagocytosing the biomaterial and the attachment of osteoclasts to the ß-TCP. The osteoclasts showed intense TRAP positivity, while the giant cells showed variable TRAP positivity. There was a zonal pattern in the original defects: The central regions showed granules and fibrous septa, while peripheral areas showed a layer of new bone formation. These data demonstrate ongoing bone remodeling long after implantation in the peripheral regions of the original defects as well as fibrous changes in the central regions and phagocytosis of biomaterial by multinuclear giant cells.


Assuntos
Doenças Ósseas/terapia , Substitutos Ósseos/uso terapêutico , Fosfatos de Cálcio/uso terapêutico , Adolescente , Adulto , Biópsia , Doenças Ósseas/patologia , Remodelação Óssea , Osso e Ossos/patologia , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoblastos/patologia , Osteoclastos/patologia , Adulto Jovem
19.
Acta Medica (Hradec Kralove) ; 56(2): 67-72, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24069660

RESUMO

Periprosthetic fractures are the third most common reason for revision total hip arthroplasty. Surgical treatment of periprosthetic fractures belongs to the most difficult procedures due to the extensive surgery, elderly polymorbid patients and the high frequency of other complications. The aim of this study was to evaluate the results of operatively treated periprosthetic femoral fractures after total hip arthroplasty. We evaluated 47 periprosthetic fractures in 40 patients (18 men and 22 women) operated on between January 2004 and December 2010. The mean follow-up period was 27 months (within a range of 12-45 months). For the clinical evaluation, we used modified Merle d'Aubigné scoring system. In group of Vancouver A fractures, 3 patients were treated with a mean score of 15.7 points (good result). We recorded a mean score of 14.2 points (fair result) in 6 patients with Vancouver B1 fractures, 12.4 points (fair result) in 24 patients with Vancouver B2 fractures and 12.7 points (fair result) in 7 patients with Vancouver B3 fractures. In group of Vancouver C fractures, we found a mean score of 16.2 points (good result) in 7 patients. Therapeutic algorithm based on the Vancouver classification system is, in our opinion, satisfactory. Accurate differentiation of B1 and B2 type of fractures is essential. Preoperative radiographic images may not be reliable. If in doubt, checking the stability of the prosthesis fixation during surgery should be performed.


Assuntos
Artroplastia de Quadril , Fraturas do Fêmur/cirurgia , Fraturas Periprotéticas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Reoperação , Estudos Retrospectivos , Resultado do Tratamento
20.
Acta Medica (Hradec Kralove) ; 56(1): 3-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23909047

RESUMO

Charcot foot neuropathic osteoarthropathy is a disorder affecting the soft tissues, joints, and bones of the foot and ankle. The disease is triggered in a susceptible individual through a process of uncontrolled inflammation leading to osteolysis, progressive fractures and articular malpositioning due to joint subluxations and dislocations. The progression of the chronic deformity with a collapsed plantar arch leads to plantar ulcerations because of increased pressure on the plantar osseous prominences and decreased plantar sensation. Subsequent deep soft tissue infection and osteomyelitis may result in amputation. The Charcot foot in diabetes represents an important diagnostic and therapeutic challenge in clinical practice. Conservative treatment remains the standard of the care for most patients with neuropathic disorder. Offloading the foot and immobilization based on individual merit are essential and are the most important recommendations in the active acute stage of the Charcot foot. Surgical realignment with stabilization is recommended in severe progressive neuropathic deformities consisting of a collapsed plantar arch with a rocker-bottom foot deformity.


Assuntos
Artropatia Neurogênica/complicações , Artropatia Neurogênica/terapia , Pé Diabético/complicações , Pé Diabético/terapia , Humanos
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