Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 58
Filtrar
1.
J Am Acad Orthop Surg ; 22(2): 90-100, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24486755

RESUMO

Management of metastatic long bone fractures requires identification of the lesion and the use of sound fracture fixation principles to relieve pain and restore function. The treating surgeon must understand the principles of pathologic fracture fixation before initiating treatment. Because these fractures occur in the context of a progressive systemic disease, management typically involves a multidisciplinary approach. When considering surgical stabilization of these fractures, the abnormal (or absent) healing environment associated with diseased bone and the overall condition of the patient must be taken into account. The goal of surgery is to obtain a rigid mechanical construct, which allows for early mobility and weight bearing. This can be achieved using internal fixation with polymethyl methacrylate cement or segmental resection and joint reconstruction. Prosthetic joint arthroplasty is a more reliable means of fracture management when insufficient bone is present for fixation. Prophylactic stabilization of impending pathologic fractures can reduce the morbidity associated with metastatic lesions.


Assuntos
Neoplasias Ósseas/cirurgia , Fraturas Espontâneas/cirurgia , Procedimentos Ortopédicos/métodos , Algoritmos , Artroplastia/métodos , Cimentos Ósseos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/secundário , Fixação Interna de Fraturas/métodos , Fraturas Espontâneas/diagnóstico por imagem , Humanos , Fraturas do Úmero/diagnóstico por imagem , Fraturas do Úmero/cirurgia , Radiografia , Fraturas da Tíbia/diagnóstico por imagem , Fraturas da Tíbia/cirurgia
2.
Int Orthop ; 36(1): 131-7, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21404025

RESUMO

PURPOSE: Whether neoadjuvant chemotherapy safely allows close margins in osteosarcoma patients is still unknown. This study investigates the impact of close margins on local recurrence (LR) and overall survival (OS) for osteosarcoma patients treated with neoadjuvant chemotherapy. METHODS: We retrospectively reviewed 47 cases of conventional osteosarcoma who were treated at our institution. Patient and treatment factors such as age, gender, MSTS stage, tumour site, surgery type, pathological type, tumour size, surgical margin, tumour necrosis rate, chemotherapy regimens and cycles were recorded. A close margin was defined as tumour present less than 5 mm from the closest resection margin. The average followup was 87.6 months (range, 25-135 months). RESULTS: Twenty-five patients were alive, 22 patients had died, and eight had LR. Twenty-eight patients had wide margins, seven had positive margins and 12 had close margins. Positive margins had a greater risk of LR (57.1%) than wide margins and close margins. There was no difference in LR (8.3% vs 10.7%) between close margins and wide margins. Margin status was not correlated with OS. CONCLUSION: Compared with wide margins, close margins did not lead to increased local recurrence in our study group. Whether close margins, as defined in our study, are just as acceptable as wide margins in terms of patient outcomes for osteosarcoma patients with neoadjuvant chemotherapy needs to be further confirmed in the future.


Assuntos
Neoplasias Ósseas/cirurgia , Terapia Neoadjuvante/métodos , Osteossarcoma/cirurgia , Adolescente , Adulto , Idoso , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/mortalidade , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Osteossarcoma/diagnóstico , Osteossarcoma/mortalidade , Pennsylvania/epidemiologia , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Adulto Jovem
3.
Clin Orthop Relat Res ; 469(10): 2889-94, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21562894

RESUMO

BACKGROUND: The incidence of perioperative infection after segmental tumor endoprosthetic replacement in previous reports varies from a high of 7.4% to a low of 2.6%. Appropriate antibiotic use for this group is unknown and controversial, whereas the relationship of antibiotic use and perioperative infection is unclear. QUESTIONS/PURPOSES: We determined the incidence of perioperative infection in patients with osteosarcoma treated with segmental prosthetic replacement using a standard perioperative antibiotic regimen and the incidence of late infections and wound complications. PATIENTS AND METHODS: We retrospectively reviewed the records of 53 patients with osteosarcoma undergoing segmental prosthetic replacements from 1993 to 2008. There were 30 males and 23 females ranging from 10 to 78 years of age. All patients were given intraoperative antibiotics (intravenous cefazolin), continued for 3 days postoperatively and then given orally for 5 days. Patients who were allergic to penicillin or cefazolin were given vancomycin followed by clindamycin. A perioperative infection was defined as a deep infection within 2 months after prosthetic reconstruction. The minimum followup was 1 year (range, 1-15 years). RESULTS: We identified one confirmed perioperative prosthetic infection (1/53; 1.9%) (Enterobacter cloacae and methicillin-resistant Staphylococcus) in a 78-year-old woman after proximal tibial replacement, gastrocnemius flap, and skin graft. Her infection was controlled with débridement, drainage, and intravenous antibiotics. Three patients had late infections, two of which were culture negative. Four patients had wound complications that required further surgery. CONCLUSION: The antibiotic regimen we used is longer than that recommended for patients having routine total joint arthroplasty. Its appropriateness will require comparison with alternate regimens, including those of shorter duration. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Artroplastia de Substituição/instrumentação , Neoplasias Ósseas/cirurgia , Prótese Articular/efeitos adversos , Osteossarcoma/cirurgia , Infecções Relacionadas à Prótese/etiologia , Adolescente , Adulto , Idoso , Antibacterianos/uso terapêutico , Artroplastia de Substituição/efeitos adversos , Criança , Desbridamento , Drenagem , Esquema de Medicação , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Philadelphia , Infecções Relacionadas à Prótese/epidemiologia , Infecções Relacionadas à Prótese/prevenção & controle , Infecções Relacionadas à Prótese/terapia , Reoperação , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
4.
Clin Orthop Relat Res ; 469(1): 283-8, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20461483

RESUMO

BACKGROUND: Solitary bone cysts (SBC), nonossifying fibromas (NOF), and fibrous dysplasia (FD) create benign intramedullary lytic bone lesions. They are typically asymptomatic and treated conservatively. We present a series of lesions that caused performance-limiting pain in young athletes, a symptom phenomenon and possible treatment indication that has been poorly described in the literature. QUESTIONS/PURPOSES: We asked whether intralesional curettage and defect grafting of these lesions would alleviate pain in young athletes and permit their return to unrestricted athletic activities. PATIENTS AND METHODS: We retrospectively identified 29 patients (30 lesions) who underwent curettage and grafting for SBC (12 patients), NOF (nine), or FD (eight). All patients had pain predominantly with athletic involvement. The mean age of the patients was 18 years (range, 12-31 years). Tumor locations were the femur (eight lesions), humerus (seven), tibia (six), fibula (five), pubic ramus (two), ulna (one), and calcaneus (one). Signs/symptoms were pain alone (24 patients) and pain plus fracture (five). Surgery involved curettage and packing with allograft cancellous chips, bone substitute, or demineralized bone matrix. Two patients required internal fixation. The mean followup was 21 months (range, 2-114 months). RESULTS: Twenty-four patients had no pain and five had occasional mild pain at last followup. All patients resumed full activity at a mean of 3.3 months (range, 1.5-8.3 months), excluding two who required repeat surgery. CONCLUSIONS: Our observations suggest curettage and packing with bone graft/substitute can provide pain relief and allow full athletic recovery for young athletes with benign lytic bone lesions. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Desempenho Atlético , Cistos Ósseos/cirurgia , Neoplasias Ósseas/cirurgia , Transplante Ósseo , Curetagem , Fibroma/cirurgia , Displasia Fibrosa Óssea/cirurgia , Dor/prevenção & controle , Adolescente , Adulto , Cistos Ósseos/complicações , Cistos Ósseos/diagnóstico por imagem , Neoplasias Ósseas/complicações , Neoplasias Ósseas/diagnóstico por imagem , Criança , Fibroma/complicações , Fibroma/diagnóstico por imagem , Displasia Fibrosa Óssea/complicações , Displasia Fibrosa Óssea/diagnóstico por imagem , Fixação Interna de Fraturas , Fraturas Ósseas/etiologia , Fraturas Ósseas/cirurgia , Humanos , Dor/etiologia , Medição da Dor , Philadelphia , Radiografia , Recuperação de Função Fisiológica , Reoperação , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
5.
Int Orthop ; 35(12): 1847-53, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21359502

RESUMO

PURPOSE: We investigated whether tumour necrosis was associated with disease-free survival (DFS) and overall survival (OS) of osteosarcoma patients treated in our institution. METHODS: We retrospectively studied the predictive value of percentage of necrosis in 40 cases of IIB osteosarcoma treated from 1999 to 2008 in our institution. Patient and treatment factors such as age, gender, tumour site, surgery type, pathological type, tumour size, margin status, percentage of tumour necrosis, chemotherapy regimens and cycles were recorded. The average follow-up was 85.9 months (range, 25-135 months). RESULTS: Two patients had local recurrence (LR) alone, five patients had both LR and metastasis, 14 patients had metastasis alone. Twenty-four patients were alive and 16 had died. The five-year DFS and OS were 47.8% and 65.9%, respectively. Tumour necrosis grouped by 90% was not associated with DFS and OS. Patients with greater than 70% necrosis rate had a significantly higher DFS than those with less than 70%. CONCLUSION: We found no survival advantage at 90% tumour necrosis in our study. Further study with more patients should be performed to evaluate the predictive value of necrosis rate at the cutoff of 70%.


Assuntos
Neoplasias Ósseas/patologia , Osteossarcoma/secundário , Adolescente , Adulto , Idoso , Neoplasias Ósseas/mortalidade , Neoplasias Ósseas/terapia , Criança , Terapia Combinada , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Necrose , Recidiva Local de Neoplasia , Osteossarcoma/mortalidade , Osteossarcoma/terapia , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
6.
Sarcoma ; 2020: 8647981, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32300280

RESUMO

Rhabdomyosarcoma (RMS) and rhabdoid tumors (RT) are rare soft-tissue malignancies with the highest incidence in infants, children, and adolescents. Advanced, recurrent, and/or metastatic RMS and RT exhibit poor response to treatment. One of the main mechanisms behind resistance to treatment is believed to be intratumoral heterogeneity. In this study, we investigated the myogenic determination factor 1 (MYOD1) and Noggin (NOG) markers in an embryonal RMS (ERMS) cell line and an RT cell line and the differential response of the MYOD1 and NOG expressing subpopulations to chemotherapy. Importantly, we found that these markers together identify a subpopulation of cells (MYOD1+ NOG+ cells) with primary resistance to Vincristine and Doxorubicin, two commonly used chemotherapies for ERMS and RT. The chemoresistant MYOD1+ NOG+ cells express markers of undifferentiated cells such as myogenin and ID1. Combination of Vincristine with TPA/GSK126, a drug combination shown to induce differentiation of RMS cell lines, is able to partially overcome MYOD1/NOG cells chemoresistance.

7.
Clin Orthop Relat Res ; 467(5): 1355-9, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-18987923

RESUMO

UNLABELLED: Management of large giant cell tumors of the proximal humerus is controversial because wide resection with reconstruction results in a poor functional outcome for most patients. We retrospectively reviewed the cases of six patients with Campanacci Grade III giant cell tumors of the proximal humerus to determine the feasibility of avoiding en bloc resections for large giant cell tumors in this location. We evacuated the tumor through curettage and then used burring (unless the remaining cavity was thinned and at risk for fracture) and phenolization, followed by packing of the defect with allograft cancellous bone. The mean age of the patients at surgery was 30 years, and the minimum followup was 2.5 years (mean, 5.6 years; range, 2.5-9.7 years). One of the six patients had local recurrence 1.2 years postoperatively and was treated with repeat intralesional surgery with no additional recurrence 5 years later. No other patient required additional treatment, had pulmonary metastases develop, or had progression to osteoarthritis. The mean Musculoskeletal Tumor Society and Toronto Extremity Salvage Score functional scores at last followup were 26 of 30 (range, 21-30) and 95% (range, 90%-100%), respectively. These functional scores are higher than reported scores for patients with segmental resection and reconstruction of the proximal humerus. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Neoplasias Ósseas/cirurgia , Transplante Ósseo , Tumor de Células Gigantes do Osso/cirurgia , Úmero/cirurgia , Adolescente , Adulto , Neoplasias Ósseas/complicações , Neoplasias Ósseas/patologia , Curetagem , Estudos de Viabilidade , Feminino , Tumor de Células Gigantes do Osso/complicações , Tumor de Células Gigantes do Osso/patologia , Humanos , Úmero/patologia , Úmero/fisiopatologia , Imageamento por Ressonância Magnética , Masculino , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Medição da Dor , Fenol/uso terapêutico , Recuperação de Função Fisiológica , Reoperação , Estudos Retrospectivos , Dor de Ombro/etiologia , Dor de Ombro/prevenção & controle , Fatores de Tempo , Transplante Homólogo , Resultado do Tratamento , Adulto Jovem
8.
Clin Orthop Relat Res ; 467(10): 2677-84, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19381740

RESUMO

UNLABELLED: Internal hemipelvectomy is performed for pelvic sarcomas when the tumor can be safely resected without sacrificing the entire extremity. Wide exposure and awareness of major neurovascular structures are crucial to the success of this surgery. Various modifications on the standard utilitarian approach have been used to best achieve these goals. We reviewed our experience using the T-incision technique for 30 pelvic sarcoma resections. The minimum followup was 3.6 months (mean, 55 months; range, 3.6-185.4 months). Postoperative complications included minor complications (requiring no surgery or a simple incision and drainage with primary closure) in 27% of patients and major complications (involving a deep infection or more extensive surgical treatment) in 17%. Ninety-two percent of wound complications healed uneventfully with antibiotics and incision and drainage. The 2-, 5-, and 10-year patient survival rates were 67%, 59%, and 53%. The 2-, 5-, and 10-year disease-free survival rates were 68%, 42%, and 42%. The mean Musculoskeletal Tumor Society and Toronto Extremity Salvage Scores were 69% and 86%, respectively. We believe the T-incision technique for internal hemipelvectomy is an effective surgical approach for pelvic sarcomas when limb salvage is possible. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Neoplasias Ósseas/cirurgia , Salvamento de Membro , Osteotomia/métodos , Ossos Pélvicos/cirurgia , Sarcoma/cirurgia , Adolescente , Adulto , Idoso , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/mortalidade , Neoplasias Ósseas/secundário , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Osteotomia/efeitos adversos , Ossos Pélvicos/diagnóstico por imagem , Radiografia , Estudos Retrospectivos , Sarcoma/diagnóstico por imagem , Sarcoma/mortalidade , Sarcoma/secundário , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
9.
Clin Orthop Relat Res ; 467(11): 2955-61, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19536604

RESUMO

UNLABELLED: Hemangiomas, benign vascular lesions, require intervention if causing pain or functional limitations. Functional deficits are common after excision, favoring minimally invasive treatments. To determine whether ethanol sclerotherapy reduces pain and lesion size and to assess complications in symptomatic musculoskeletal hemangiomas, we retrospectively reviewed 19 patients (six males, 13 females; mean age, 34 years) meeting criteria of confirmed hemangioma, treatment with ethanol sclerotherapy, and minimum of 6 weeks of followup. Fourteen were primary lesions and five were recurrent; all were painful. Thirty-eight sclerotherapy procedures were performed, with each patient undergoing a maximum of three procedures. Mean followup was 24 months (range, 2-95 months). Four patients reported full pain relief, 11 had partial relief, and four had no relief. With recurrent lesions, one patient had full pain relief, one had partial relief, and three had no relief. For patients with lesions larger than 5 cm, two had full relief, six had partial relief, and three had no relief. Lesion shrinkage occurred in 12 patients. Temporary complications included paresthesiae (three), tendon contracture (one), skin breakdown (one), and deep vein thrombosis (one). Ethanol sclerotherapy afforded prompt pain relief in 15 of 19 patients with hemangioma, making it a reasonable option for initially avoiding surgical excision. However, the short followup of our patients requires additional long-term studies to assess the duration of the results. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Neoplasias Ósseas/terapia , Etanol/uso terapêutico , Hemangioma/terapia , Escleroterapia/métodos , Neoplasias de Tecidos Moles/terapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia , Biópsia por Agulha , Neoplasias Ósseas/diagnóstico , Estudos de Coortes , Feminino , Seguimentos , Hemangioma/diagnóstico , Humanos , Injeções Intralesionais , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Medição da Dor , Estudos Retrospectivos , Medição de Risco , Escleroterapia/efeitos adversos , Neoplasias de Tecidos Moles/diagnóstico , Resultado do Tratamento , Ultrassonografia Doppler , Adulto Jovem
10.
Clin Orthop Relat Res ; 467(10): 2685-90, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19214644

RESUMO

UNLABELLED: Osteoarticular allograft reconstruction after extremity tumor resection has been shown to have a high rate of complications. Although good functional results have been seen, long-term outcomes have not been well studied. We performed a retrospective review of 20 patients who underwent primary osteoarticular allograft reconstruction after extremity sarcoma resection. All postoperative complications related to the allograft reconstruction were recorded. Musculoskeletal Tumor Society 1993 and Toronto Extremity Salvage Score scores were used for functional evaluation at last followup. Minimum followup was 10 years (mean, 16 years; range, 10-21 years). Seventy percent of patients experienced an event during the followup period. Recorded events were fracture (nine patients), progressive arthritis (five), nonunion (four), and infection (two). Sixty percent of allografts were removed at a mean of 5.2 years. Progressive arthritis led to total joint arthroplasty in five patients (25%). Mean Musculoskeletal Tumor Society and Toronto Extremity Salvage Score functional scores were 25 of 30 and 95% for patients who retained their original allograft. Osteoarticular allograft reconstruction for extremity sarcomas had a high rate of adverse events (70%) and allograft removal (60%) at long-term followup. Functional outcomes of patients with intact grafts were comparable to outcomes with segmental replacement prostheses reported in the literature. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Neoplasias Ósseas/cirurgia , Transplante Ósseo , Sobrevivência de Enxerto , Salvamento de Membro , Sarcoma/cirurgia , Adolescente , Adulto , Artrite/etiologia , Artrite/cirurgia , Artroplastia de Substituição , Neoplasias Ósseas/mortalidade , Neoplasias Ósseas/fisiopatologia , Transplante Ósseo/efeitos adversos , Criança , Intervalo Livre de Doença , Feminino , Fraturas Ósseas/etiologia , Fraturas Ósseas/cirurgia , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Reoperação , Estudos Retrospectivos , Sarcoma/mortalidade , Sarcoma/fisiopatologia , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/cirurgia , Fatores de Tempo , Transplante Homólogo , Resultado do Tratamento , Adulto Jovem
12.
J Patient Rep Outcomes ; 3(1): 6, 2019 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-30714073

RESUMO

BACKGROUND: Tenosynovial giant cell tumor (TGCT), a rare, locally aggressive neoplasm of the synovium of joints and tendon sheaths, is associated with joint destruction, pain and swelling. Impacts on physical function (PF) vary depending on tumor size and location. The aim of this study was to identify relevant items, and demonstrate the content validity of custom measures of lower extremity PF from the Patient-Reported Outcomes Measurement Information System Physical Function Physical Function (PROMIS-PF) item bank among patients with TGCT. METHODS: Patients were recruited for qualitative research interviews to identify predominant TGCT symptoms and impacts. Patients completed a checklist to evaluate the relevance of each PROMIS-PF item. The publicly available PROMIS-PF item response theory (IRT) parameters were used to select items representing the range of the latent PF trait. RESULTS: Participants (n = 20) were 75% female, mean age 42.5 years. TGCTs were located in the knee (n = 15), hip (n = 3), and ankle (n = 2). Fifty-four PROMIS-PF items were identified as relevant by ≥20% of the participants. PF concepts discussed by participants during the qualitative interviews were also used to select relevant items. Selected items (n = 13) were used to create a physical function subscale specific to lower extremity tumors. CONCLUSIONS: We describe a novel method of combining qualitative research and IRT-based item information to select a relevant and content valid subset of PROMIS-PF items to assess heterogeneous impacts on PF in TGCT, a rare disease population.

13.
Semin Oncol ; 35(2): 118-28, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18396197

RESUMO

Surgical management of metastases to the extremities and pelvis has benefited from advances in the technology of internal fixation, as well as the increased availability of options for large endoprostheses. Contoured periarticular plates and the screws that attach rigidly to the plates have made fixation into weakened bone more reliable and easier to provide. For massive bone loss, modular endoprostheses are now widely available. These options supplemented with bone cement (polymethylmethacrylate) give patients the ability to have most bone defects reinforced or replaced such that the patient can begin using the affected limb almost immediately.


Assuntos
Neoplasias Ósseas/secundário , Neoplasias Ósseas/cirurgia , Extremidades/patologia , Pelve/patologia , Humanos
14.
J Am Acad Orthop Surg ; 16(4): 188-98, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18390481

RESUMO

Desmoid tumors are benign tumors that exhibit varying degrees of local aggressiveness and diverse growth patterns. Magnetic resonance imaging remains the modality of choice for assessment of the nature and size of the soft-tissue lesion and involvement of surrounding structures. Treatment strategies include surgery, chemotherapy, hormonal therapy, and radiation therapy, either individually or in combination. Despite the benign nature of these tumors, multidisciplinary care is needed to provide combined treatment options. Chemotherapy in low doses is an excellent first-round treatment in any patient in whom contemplated local treatment may produce local morbidity and adjacent tissue injury.


Assuntos
Fibromatose Agressiva , Neoplasias Musculares , Fibromatose Agressiva/diagnóstico , Fibromatose Agressiva/patologia , Fibromatose Agressiva/terapia , Humanos , Neoplasias Musculares/diagnóstico , Neoplasias Musculares/patologia , Neoplasias Musculares/terapia , Neoplasias de Tecidos Moles/diagnóstico , Neoplasias de Tecidos Moles/patologia , Neoplasias de Tecidos Moles/terapia
15.
World J Orthop ; 8(1): 77-81, 2017 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-28144583

RESUMO

Dysplasia epiphysealis hemimelica (DEH), or Trevor's disease, is an osteocartilaginous epiphyseal overgrowth typically occurring in children. The literature reports 6 adult cases and none describe recurrence requiring additional procedures. We present a new-onset proximal tibial DEH in an adult recurring approximately 3 years after open excision. A 39-year-old female presented with a history of right knee pain, swelling, and instability. Physical examination revealed a firm proximal tibial mass. Computed tomography (CT) imaging showed an exophytic, lobulated, sclerotic mass involving the anterolateral margin of the lateral tibial plateau. Magnetic resonance imaging was suggestive of an osteochondroma. The patient underwent curettage of the lesion due to its periarticular location. Histology revealed benign and reactive bone and cartilage consistent with periosteal chondroma. Two and a half years later, the patient presented with a firm, palpable mass larger than the initial lesion. CT revealed a lateral tibial plateau sclerotic mass consistent with recurrent intra-articular DEH. A complete excision was performed and histology showed sclerotic bone with overlying cartilage consistent with exostosis. DEH is a rare epiphyseal osteocartilaginous outgrowth frequently occurring in the long bones of children less than 8 years old. DEH resembles an osteochondroma due to its pediatric presentation and similar histologic appearance. Adult-onset cases comprise less than 1% of reported cases. Recurrence rate after surgical intervention is unknown. Only 1 such case, occurring in a child, has been described. Clinicians contemplating operative treatment for DEH should note the potential for recurrence and consider complete excision. A follow-up period of several years may be warranted to identify recurrent lesions.

16.
J Bone Joint Surg Am ; 99(23): 2004-2010, 2017 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-29206790

RESUMO

BACKGROUND: Patients who undergo orthopaedic oncologic surgical procedures are at increased risk of developing a venous thromboembolism (VTE). Guidelines from surgical societies are shifting to include aspirin as a postoperative VTE prophylactic agent. The purpose of this study was to review our experience using aspirin as postoperative VTE prophylaxis for orthopaedic oncologic surgical procedures. METHODS: This study was a retrospective review of patients diagnosed with a primary malignant soft-tissue or bone tumor or metastatic carcinoma. Demographic information, histopathologic diagnosis, VTE history, surgical procedure, and VTE prophylaxis were analyzed. VTE rates in the overall and prophylactic-specific cohorts were recorded and compared. RESULTS: A total of 142 distinct surgical procedures in 130 patients were included. VTE prophylaxis with aspirin was used after 103 procedures, and non-aspirin prophylaxis was used after 39. In 33 cases, imaging was used to investigate for VTE because of clinical signs and symptoms. VTE developed after 7 (4.9%) of the 142 procedures. There were 6 deep venous thromboses (DVTs) and 1 pulmonary embolism, and 2 of the VTEs presented in patients with a VTE history. VTE developed in 2.9% (3) of the 103 aspirin cases and 10.3% (4) of the 39 non-aspirin cases. No patient in the aspirin group who had been diagnosed with metastatic carcinoma, malignant soft-tissue sarcoma, lymphoma, or multiple myeloma developed a VTE. Risk factors for VTE development included diabetes mellitus (odds ratio [OR] = 10.40, 95% confidence interval [CI] = 1.61 to 67.30), a history of VTE (OR = 7.26, 95% CI = 1.19 to 44.25), postoperative transfusion (OR = 34.50, 95% CI = 3.94 to 302.01), and estimated blood losses of 250 mL (OR = 1.50, 95% CI = 1.11 to 2.03), 500 mL (OR = 2.26, 95% CI = 1.23 to 4.13), and 1,000 mL (OR = 5.10, 95% CI = 1.52 to 17.04). CONCLUSIONS: Aspirin may be a suitable and effective option for VTE chemoprophylaxis in patients treated with orthopaedic oncologic surgery, especially those diagnosed with a soft-tissue sarcoma. Research with a more advanced study design is required. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.


Assuntos
Anticoagulantes/administração & dosagem , Aspirina/administração & dosagem , Neoplasias Ósseas/cirurgia , Procedimentos Ortopédicos , Complicações Pós-Operatórias/prevenção & controle , Neoplasias de Tecidos Moles/cirurgia , Tromboembolia Venosa/prevenção & controle , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
17.
Orthop Clin North Am ; 37(1): 53-63, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16311111

RESUMO

Desmoid tumors, also known as aggressive fibromatosis, are rare fibroblastic tumors that exhibit a wide range of local aggressiveness, from largely indolent to locally destructive. Understanding of the pathogenesis and the great heterogeneity in the natural history of desmoid tumors is invaluable to the development of therapeutic strategies. The optimal treatment protocol has not yet been established and, in many cases, a multidisciplinary approach including surgery, chemotherapy, and radiation therapy has been employed. The rarity of cases in even major tumor centers has traditionally limited the ability to study this disease. Several novel pharmacologic and biologic treatment approaches are actively being developed, although long-term follow-up is needed for their substantiation.


Assuntos
Fibromatose Agressiva/patologia , Fibromatose Agressiva/terapia , Neoplasias de Tecidos Moles/patologia , Neoplasias de Tecidos Moles/terapia , Adolescente , Adulto , Biópsia por Agulha , Quimioterapia Adjuvante , Terapia Combinada/métodos , Feminino , Fibromatose Agressiva/mortalidade , Humanos , Imuno-Histoquímica , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Radioterapia Adjuvante , Medição de Risco , Neoplasias de Tecidos Moles/mortalidade , Análise de Sobrevida , Resultado do Tratamento
18.
Clin Ther ; 38(4): 778-93, 2016 04.
Artigo em Inglês | MEDLINE | ID: mdl-27041409

RESUMO

PURPOSE: Tenosynovial giant cell tumor (TGCT), a rare locally aggressive neoplasm of the synovium of joints and tendon sheaths, is associated with joint destruction, inflammation, pain, and swelling, in part due to colony-stimulating factor 1 receptor-bearing macrophages recruited to the tumor by genetic elevation of colony-stimulating factor 1 activity. The most common treatment is surgery, although promising pharmacologic treatments are in development. Patient-reported outcome (PRO) instruments are critical end points in demonstrating the clinical relevance of standard oncologic outcome measures and the overall impact of novel pharmacologic therapies in nonmalignant neoplastic conditions such as TGCT. The content validity of PROs relevant to patients with TGCT has not been formally investigated, and instruments to evaluate such outcomes do not exist for this condition. METHODS: PRO instruments of potential relevance were evaluated by using a literature review and by clinical and PRO experts. Patients with TGCT were recruited through clinical sites and the Internet for participation in qualitative research interviews to identify predominant symptoms and to test the relevance and content validity of several PRO measures. Select PRO measures were included in a Phase I clinical trial, and preliminary results of the PRO end points are reported descriptively. FINDINGS: Of the 22 subjects who participated in qualitative interviews, 73% were female, and their mean age was 42.5 years (range, 27-56 years). The TGCTs (19 diffuse and 3 localized) were located in the knee (n = 15), hip (n = 3), ankle (n = 2), elbow (n = 1), and forearm (n = 1). The most common symptoms cited were pain (82%), swelling (86%), stiffness (73%), reduced range of motion (64%), and joint instability (64%), which were consistent with clinical expert input and with the content of instruments chosen by PRO experts. The worst pain numeric rating scale, Patient Reported Outcomes Measurement Information System physical functioning items, and the Western Ontario and McMaster Universities Osteoarthritis Index, as well as a worst stiffness numeric rating scale developed for TGCT, were confirmed as meaningful measures of TGCT patient symptoms and were well understood in qualitative interviews. Results from the Phase I trial showed trends of improvement in both pain and stiffness over time. IMPLICATIONS: This study is the first to gather information directly from patients with TGCT regarding their symptom experiences. Pain, stiffness, and physical functioning are important treatment outcomes in patients with TGCT. We have identified content-valid PRO measures of these concepts, which are included in an ongoing Phase III TGCT clinical trial with pexidartinib (PLX3397) (NCT02371369).


Assuntos
Tumor de Células Gigantes de Bainha Tendinosa , Medidas de Resultados Relatados pelo Paciente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
20.
J Plast Reconstr Aesthet Surg ; 68(12): 1750-4, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26576702

RESUMO

External hemipelvectomy associated with trauma or during the operative management of musculoskeletal sarcomas may yield a soft tissue defect that can only be sufficiently covered by free tissue transfers. The application of "spare-parts surgery," such as a fillet of leg or thigh flap, uses distal uninvolved parts that are otherwise viable tissues as donor tissues to cover defects. This concept has great utility to achieve soft tissue coverage in challenging cases, such as hemipelvectomy. However, during such complicated and time-consuming cases, prolonged ischemia time of the proposed donor tissues can be problematic. We describe a technique developed by the senior author (SJK) that minimizes the ischemia time of donor free tissues during external hemipelvectomy. This technique is applicable to other surgeries where filleted spare parts are the donor-site source for free tissue transfer.


Assuntos
Neoplasias Ósseas/cirurgia , Retalhos de Tecido Biológico , Hemipelvectomia , Ossos Pélvicos/patologia , Ossos Pélvicos/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Adolescente , Neoplasias Ósseas/patologia , Condrossarcoma/patologia , Condrossarcoma/cirurgia , Humanos , Isquemia , Leiomiossarcoma/patologia , Leiomiossarcoma/cirurgia , Masculino , Pessoa de Meia-Idade , Osteossarcoma/patologia , Osteossarcoma/cirurgia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA