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1.
Eur J Orthop Surg Traumatol ; 34(1): 167-173, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37386190

RESUMEN

PURPOSE: To assess proximal femoral replacement as a treatment solution for nonunion of pathologic subtrochanteric fractures after cephalomedullary nailing in patients with pathological fracture and previously irradiated bone. METHODS: Retrospective review of five patients with pathological subtrochanteric femoral fractures that were treated with cephalomedullary nailing and developed a nonunion, which was revised with conversion to a proximal endoprosthetic replacement. RESULTS: All five patients had previously been treated with radiation. One patient had the latest follow-up at 2 months postoperatively. At that time, the patient was walking with a walker for assistance, with no evidence of hardware failure or loosening on imaging. The remaining four patients had the latest follow-up ranging from 9 to 20 months after surgery. At their latest follow-up, three of the four patients were ambulatory with no pain, using only a cane for assistance with longer distances. The other patient demonstrated pain in his affected thigh, utilizing a walker for assistance with ambulation at latest follow-up, but not requiring further surgical interventions. There were no hardware failures or implant loosening through the follow-up period. None of the patients required revision, and there were no postoperative complications observed at their last follow-up. CONCLUSIONS: In patients with pathological fractures in the subtrochanteric region that is treated with cephalomedullary nailing and developed a nonunion, treatment with conversion to a proximal femoral replacement with a mega prosthesis is a valuable treatment with good functional results and low risk for complications. LEVEL OF EVIDENCE: Therapeutic level IV.


Asunto(s)
Fracturas del Fémur , Fijación Intramedular de Fracturas , Fracturas Espontáneas , Fracturas de Cadera , Humanos , Fijación Intramedular de Fracturas/efectos adversos , Fijación Intramedular de Fracturas/métodos , Fracturas de Cadera/cirugía , Fracturas de Cadera/etiología , Estudios Retrospectivos , Complicaciones Posoperatorias/etiología , Resultado del Tratamiento , Fracturas del Fémur/cirugía , Fracturas del Fémur/etiología , Clavos Ortopédicos/efectos adversos
3.
Radiol Case Rep ; 17(8): 2775-2778, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35677708

RESUMEN

Several studies have previously documented the development of complications stemming from injection with one of the various COVID-19 vaccines. No study, however, has discussed the spontaneous development of a soft tissue mass shortly after a COVID-19 vaccine injection. We report on 66-year-old female with concerns of a growing shoulder mass, 2 weeks after receiving a COVID-19 vaccine booster. Initial work-up with X-ray and MRI was concerning for a soft tissue neoplasm, specifically a soft tissue sarcoma. Subsequent ultrasound guided biopsy demonstrated a benign granulomatous lesion. No further management was required as the lesion spontaneously resolved during a 3-month follow-up period.

4.
J Oncol ; 2021: 1844816, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34876901

RESUMEN

BACKGROUND: Myxofibrosarcoma (MFS) is notorious for its infiltrative growth pattern, making wide excisions difficult to achieve. Our objective was to assess the impact of surgical margins and other factors that affected rates of local recurrence (LR), distant metastasis (DM), and overall survival (OS) of individuals undergoing resection for MFS. METHODS: We retrospectively reviewed the medical records of 209 patients with appendicular soft tissue sarcomas between January 2012 and June 2018. Of these, 29 patients (14%) were diagnosed with myxofibrosarcoma. These patients underwent a total of 33 resections. The pathological analyses were conducted by an experienced musculoskeletal (MSK) pathologist. Demographics data, operative details, adjuvant therapy, and oncological outcomes were assessed. RESULTS: Of the 29 patients (33 resections), the overall LR rate was 24% (7/29) and the 2-year LR rate was 17% (5/29). Factors associated with negative oncological outcomes were as follows: tumor size ≤10 cm (2-year local recurrence-free rates (LRFRs), 65%; 95% CI, 44-86%; p=0.02) and positive surgical margins grouped with surgical margins ≤0.1 cm (hazard ratio (HR), 11.74; 95% CI, 1.41-97.74; p=0.02). Chemotherapy and radiotherapy together increased the 2-year LRFR (LRFR, 100%; 95% CI, 100%, p=0.001). Two-year DM and OS rates were 15% and 79%, respectively. Female gender was a predictor of distant metastasis. Local recurrence had a negative impact on overall survival. Intraoperative analysis of resection margin accuracy was 75% (12/16) when non-MSK pathologists were involved but 100% accurate (12/12) when analyzed by an MSK pathologist. CONCLUSION: Myxofibrosarcomas showed high LR rates after treatment. Close margins (≤0.1 cm) should be considered as a risk factor for LR, and LR is associated with negative overall survival. Neoadjuvant therapy in terms of combined chemotherapy and radiation therapy associates with decreased LR rates. If intraoperative assessment of margins is to be done, it should be performed by an experienced MSK pathologist.

5.
Adv Anat Pathol ; 28(6): 415-425, 2021 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-34516450

RESUMEN

Amyloid arthropathy is a joint disease associated with systemic amyloidosis. Herein, we present a model case and review the clinicopathologic features and pathophysiology of this disorder. Amyloid arthropathy results from elevation of serum amyloidogenic proteins and their deposition as aggregates in synovial fluid and articular tissues. The most common proteins are beta-2-microglobulin in the context of long-term hemodialysis therapy and immunoglobulin light chains associated with plasma cell proliferations. We provide a comprehensive update on the pathogenesis, clinical manifestations, and pathologic features of amyloid arthropathy. We provide detailed insights on amyloid protein deposition and aggregation in joints and proper details for diagnosis.


Asunto(s)
Amiloidosis , Artropatías , Amiloide , Humanos , Diálisis Renal , Microglobulina beta-2
6.
Int Orthop ; 45(11): 2983-2991, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34415419

RESUMEN

PURPOSE: An "unplanned excision" refers to soft tissue sarcomas excised without planning imaging studies and a diagnostic biopsy, resulting in the presence of residual disease and usually necessitating a re-excision procedure. We aimed to assess the impact of previous unplanned excisions on the intra-operative pathologic assessment at the time of re-excision, in terms of need to perform repeat assessments and the accuracy to predict margin status of the final pathologic specimen. METHODS: Data was collected for all patients with extremity soft tissue sarcoma who had undergone wide local excision limb salvage surgery or amputation between 2012 and 2017. Intra-operative pathologic assessment with frozen sections was performed in all cases and was classified as negative, negative but close (< 1 mm), and positive. RESULTS: A total of 173 patients with extremity soft tissue sarcoma were included, 54 in the unplanned excision group and 119 in the planned excision group. The accuracy of intra-operative pathologic assessment to predict the margin status on final pathology was similar between groups (87% unplanned vs. 90.7% planned excisions). However, the need for repeat intra-operative pathologic assessment and subsequent resection due to microscopically positive margins was found to be higher within the unplanned excision group ((p = 0.04), OR = 3.2 (95% CI: 1.1-9.1, p = 0.048)). CONCLUSIONS: Intra-operative pathologic assessment of resection margins had a similar accuracy in planned and unplanned excisions; however, unplanned excisions showed a higher risk of re-resection during the same surgical setting.


Asunto(s)
Sarcoma , Neoplasias de los Tejidos Blandos , Extremidades , Humanos , Recuperación del Miembro , Recurrencia Local de Neoplasia , Estudios Retrospectivos , Sarcoma/diagnóstico , Sarcoma/cirugía , Neoplasias de los Tejidos Blandos/cirugía
7.
Cancers (Basel) ; 13(5)2021 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-33802383

RESUMEN

(1) Background: Pathologic necrosis of soft tissue sarcomas (STS) has been used to determine treatment response, but its relationship to neoadjuvant treatments remains indeterminate. In this retrospective, single institution study, we hypothesized that neoadjuvant chemoradiation (NA-CRT) yields higher rates of pathologic complete response (pCR) than neoadjuvant radiation (NA-XRT) or chemotherapy (NA-CT) alone. (2) Methods: Patients with extremity STS between 2011-2020 who received neoadjuvant treatment were included. pCR was defined as percent necrosis of the surgical specimen greater than or equal to 90%. (3) Results: 79 patients were analyzed. 51.9% of the population were male with a mean age of 58.4 years. 49.4% identified as Non-Hispanic White. Twenty-six (32.9%) patients achieved pCR while 53 (67.1%) did not. NA-CT (OR 15.82, 95% CI = 2.58-96.9, p = 0.003 in univariate (UVA) and OR 24.7, 95% CI = 2.88-211.2, p = 0.003 in multivariate (MVA), respectively) and NA-XRT (OR 5.73, 95% CI = 1.51-21.8, p = 0.010 in UVA and OR 7.95, 95% CI = 1.87-33.7, p = 0.005 in MVA, respectively) was significantly associated with non- pCR when compared to NA-CRT. The analysis also demonstrated that grade 3 tumors, when using grade 2 as reference, also had significantly higher odds of achieving pCR (OR 0.23, 95% CI = 0.06-0.80, p = 0.022 in UVA and OR 0.16, 95% CI = 0.04-0.70, p = 0.015 in MVA, respectively). (4) Conclusion: NA-CRT yields superior pCR compared to other neoadjuvant regimens. This extends to higher grade tumors.

8.
J Am Acad Orthop Surg ; 29(9): e465-e470, 2021 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-32868702

RESUMEN

INTRODUCTION: In the setting of pathologic fractures or impending fractures of the femur, intramedullary nailing or hemiarthroplasty are the common surgical procedures indicated. Traditional teaching has stressed the importance of protecting the entire femur, and thus, it is common for these fractures to be treated with long nails or stems. Recent literature has begun to investigate whether this school of thought is valid and may challenge the perceived need for protection of the entire femur. The purpose of our study was to determine the incidence of ipsilateral distal femoral metastases after the treatment of proximal femoral metastases. METHODS: A retrospective chart review was performed that identified 66 patients who presented with completed or impending pathologic fractures of the proximal femur who then underwent either intramedullary nailing or hemiarthroplasty for surgical stabilization. Plain radiographs, in conjunction with CT, MRI, or positron emission tomography-CT when available, were used to determine whether there was disease progression and/or distal metastasis in the femur. RESULTS: There was one patient (1.5%) in this series who developed distal femoral metastasis after hemiarthroplasty from metastatic breast carcinoma. There were three patients (4.54%) with local progression of the disease. No patient required further intervention, and there were no cases of hardware failure or periprosthetic fracture after prophylactic fixation. DISCUSSION: Our findings show that there is an extremely low likelihood of developing distal femoral metastases when isolated proximal femoral metastases are present and thus protecting the entire femur may not be necessary in this clinical scenario. LEVEL OF EVIDENCE: IV, therapeutic study.


Asunto(s)
Fracturas del Fémur , Fijación Intramedular de Fracturas , Fracturas del Fémur/diagnóstico por imagen , Fracturas del Fémur/epidemiología , Fracturas del Fémur/cirugía , Fémur/diagnóstico por imagen , Fémur/cirugía , Humanos , Estudios Retrospectivos , Resultado del Tratamiento
9.
Artículo en Inglés | MEDLINE | ID: mdl-33283129

RESUMEN

INTRODUCTION: Contribution toward clinical research is paramount to the education of physician trainees and is required by the Accreditation Council for Graduate Medical Education. From 1987 through 2015, our single institution orthopaedic surgery residency research experience included 2 dedicated research rotations. Because few resident projects were pursued to completion, feedback was used to restructure the curriculum, including the appointment of 2 clinical orthopaedic faculty to serve as codirectors, development of a revised curriculum, use of research teams, and a centralized research database. Our group previously displayed increased resident productivity within 2 years after the 2015 implementation. The aim of this study was to investigate the impact of orthopaedic residency curricular changes on scholarly activity of orthopaedic teaching faculty. METHODS: The curriculum vitae (CVs) of a single institution's orthopaedic teaching faculty were collected and retrospectively reviewed from 2014 through 2018 to determine academic productivity of clinical faculty. Indicators of academic productivity included peer-reviewed publications (including journal impact factors) and podium or poster presentations. RESULTS: Twenty-three of 27 faculty members responded to our request for CVs. One hundred three CVs were reviewed on 23 faculty. All academic indicators increased over 5 years. Multivariate analysis of variance (MANOVA) using a multivariate repeated measures analysis was completed. A sphericity χ2 test was violated for all measures, precluding us from using unadjusted univariate analysis. Univariate MANOVA with repeated measures displays significance regarding impact factor (f < 0.02, p < 0.05) and journal publications (f < 0.004, p < 0.05). Subsequent multivariate analysis shows similar results regarding impact factor (f < 0.0008), journal publications (0.0005), and poster presentations (f < 0.016). CONCLUSIONS: Improved structure of an established resident research rotation combined with enhanced faculty mentorship resulted in a significant increase in academic productivity for clinical teaching faculty of the department of orthopaedic surgery. This increase parallels that seen in orthopaedic resident research productivity; indicating a positive impact on teaching faculty scholarly activity. LEVEL OF EVIDENCE: III.

10.
Mol Med Rep ; 22(5): 3747-3758, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32901865

RESUMEN

Chondrosarcoma is a malignant bone neoplasm that is refractory to chemotherapy and radiation. With no current biological treatments, mutilating surgical resection is the only effective treatment. Proline rich polypeptide 1 (PRP­1), which is a 15­amino acid inhibitor of mammalian target of rapamycin complex­1 (mTORC1), has been indicated to exert cytostatic and immunomodulatory properties in human chondrosarcoma cells in a monolayer. The aim of the present study was to evaluate the effects of PRP­1 on an in vitro 3D chondrosarcoma tumor model, known as spheroids, and on the cancer stem cells (CSCs) which form spheroids. JJ012 cells were cultured and treated with PRP­1. An ALDEFLUOR™ assay was conducted (with N,N­diethylaminobenzaldehyde as the negative control) to assess aldehyde dehydrogenase (ALDH) activity (a recognized CSC marker), and bulk JJ012, ALDHhigh and PRP­1 treated ALDHlow cells were sorted using flow cytometry. Colony formation and spheroid formation assays of cell fractions, including CSCs, were used to compare the PRP­1­treated groups with the control. CSCs were assessed for early apoptosis and cell death with a modified Annexin V/propidium iodide assay. Western blotting was used to identify mesenchymal stem cell markers (STRO1, CD44 and STAT3), and spheroid self­renewal assays were also conducted. A clonogenic dose­response assay demonstrated that 20 µg/ml PRP­1 was the most effective dose for reducing colony formation capacity. Furthermore, CSC spheroid growth was significantly reduced with increasing doses of PRP­1. Annexin V analysis demonstrated that PRP­1 induced CSC cell death, and that this was not attributed to apoptosis or necrosis. Western blot analysis confirmed the expression of mesenchymal markers, and the spheroid self­renewal assay confirmed the presence of self­renewing CSCs. The results of the present study demonstrate that PRP­1 eliminates anchorage independent CSC growth and spheroid formation, indicating that PRP­1 likely inhibits tumor formation in a murine model. Additionally, a decrease in non­CSC bulk tumor cells indicates an advantageous decline in tumor stromal cells. These findings confirm that PRP­1 inhibits CSC proliferation in a 3D tumor model which mimics the behavior of chondrosarcoma in vivo.


Asunto(s)
Péptidos Catiónicos Antimicrobianos/farmacología , Biomarcadores de Tumor/metabolismo , Neoplasias Óseas/metabolismo , Condrosarcoma/metabolismo , Células Madre Neoplásicas/citología , Antígenos de Superficie/metabolismo , Neoplasias Óseas/tratamiento farmacológico , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Condrosarcoma/tratamiento farmacológico , Relación Dosis-Respuesta a Droga , Humanos , Receptores de Hialuranos/metabolismo , Células Madre Neoplásicas/efectos de los fármacos , Células Madre Neoplásicas/metabolismo , Factor de Transcripción STAT3/metabolismo , Esferoides Celulares/citología , Esferoides Celulares/efectos de los fármacos , Esferoides Celulares/metabolismo
11.
Oncol Rep ; 44(1): 393-403, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32627042

RESUMEN

Chondrosarcoma is the second most common primary malignant bone tumor and is resistant to chemotherapy and radiation. Inadequate treatment response and poor prognosis requires novel therapeutic approaches. Proline­rich polypeptide­1 (PRP­1), synthesized by brain neurosecretory cells, has demonstrated antitumor properties in JJ012­cells; however, its underlying molecular mechanism remains unclear. The present study aimed to investigate the epigenetic regulation by which PRP­1 inhibits chondrosarcoma cancer stem cell (CSC) proliferation and to elucidate additional CSC biomarkers in human chondrosarcoma other than ALDH1A1. Human chondrosarcoma JJ012­cells were treated with PRP­1 prior to performing an Aldefluor™ assay and fluorescence­activated cell sorting in order to determine aldehyde dehydrogenase (ALDH) expression levels and isolate ALDHhigh and ALDHlow cell populations. ALDH is an established marker of CSCs in several neoplasms, including chondrosarcoma. The cells were collected and lysed for gel electrophoresis, followed by western blot analysis. The Aldefluor™ assay was used to assess the expression levels of well­established CSC biomarkers, including CD133, CD4, CD10, CD144, CD177, CD221, CD271, leucine­rich repeat­containing G protein­coupled receptor 5, SOX2 and B lymphoma Mo­MLV insertion region 1 homolog (BMI­1), within the ALDHhigh population of JJ012 cells. The results confirmed that ALDHA1 was the biomarker for chondrosarcoma CSCs. PRP­1 was demonstrated to inhibit the ALDHhigh population colony and sarcosphere formation; 5 µg/ml PRP­1 was indicated to be the optimum concentration in eliminating colonies formed by JJ012 cells (92%, P<0.001) and by the ALDHhigh CSC­population (80.5%, P<0.001) in the clonogenic dose­response assay. Spheroid growth unequivocally decreased with an increase in PRP­1 dose. In order to determine the molecular mechanism by which PRP­1 decreased the CSC population, the regulation of the mammalian Switch/sucrose non­fermenting (SWI/SNF) complex, also referred to as BRG1­associated factor (BAF) complex, which either activates or represses transcription, thus acting as an oncogene or tumor suppressor in human cells, was analyzed. PRP­1 was demonstrated to decrease the expression levels of BRG, BAF170 and BRM; therefore, in JJ012 cells, these key players of the SWI/SNF (BAF) complex served an oncogenic role. The results of the present study demonstrated that PRP­1 targets chromatin­remodeling complexes; therefore, future efforts will be directed towards determining the interconnection between CSC maintenance, self­renewal capacity and BAF complexes.


Asunto(s)
Péptidos Catiónicos Antimicrobianos/farmacología , Neoplasias Óseas/metabolismo , Condrosarcoma/metabolismo , Células Madre Neoplásicas/metabolismo , Proteínas Proto-Oncogénicas B-raf/metabolismo , Familia de Aldehído Deshidrogenasa 1/metabolismo , Neoplasias Óseas/tratamiento farmacológico , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Condrosarcoma/tratamiento farmacológico , Cromatina/efectos de los fármacos , Cromatina/genética , Epigénesis Genética/efectos de los fármacos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Células Madre Neoplásicas/efectos de los fármacos , Retinal-Deshidrogenasa/metabolismo
12.
J Orthop ; 21: 183-191, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32256002

RESUMEN

Limb salvage surgery refers to orthopaedic procedures designed to resect tumors and reconstruct limbs. Improvements in managing malignant bone lesions have led to a dramatic shift in limb salvage procedures. Orthopaedic surgeons now employ four main reconstructive procedures: endoprosthesis, autograft, bulk allograft, and allograft prosthetic composite. While each approach has its advantages, each technique is associated with complications. Furthermore, knowledge of procedure specific imaging findings can lead to earlier complication diagnosis and improved clinical outcomes. The aim of this article is to review leading reconstructive options available for limb salvage surgery and present a case series illustrating the associated complications.

13.
JBJS Case Connect ; 10(1): e0469, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32044775

RESUMEN

CASES: Three patients were referred to our musculoskeletal oncology service after undergoing autologous fat grafting procedures. Two masses were suspected to be "soft tissue sarcomas," and one was due to a mass of unknown origin. These findings have not been reported in the orthopedic literature and may generate potential referrals for orthopedic oncologists. CONCLUSIONS: Awareness of potential complications of procedures from other surgical specialties and their radiographic characteristics is of utmost importance. The clinical and radiographic findings that could assist in distinguishing a mass related to an autologous fat transfer procedure from a soft tissue sarcoma are described.


Asunto(s)
Extremidad Inferior/diagnóstico por imagen , Complicaciones Posoperatorias/diagnóstico por imagen , Grasa Subcutánea/trasplante , Adulto , Femenino , Humanos , Imagen por Resonancia Magnética , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Adulto Joven
14.
J Surg Educ ; 77(1): 229-234, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31501066

RESUMEN

BACKGROUND: The ability to complete an operative report is a vital skill for an orthopaedic surgeon. We hypothesized that most programs do not have formal operative report teaching, that resident operative reports at our institution are incomplete, and that a formal teaching program would improve operative reports. METHODS: A survey of residencies in the United States was conducted assessing the state of operative report education. In addition, resident operative reports were collected at our institution both pre and post a formal educational session. Scores were given for each report out of a possible 35 points. RESULTS: Total 54 institutions responded to the survey, of which 83% indicated that they had no formal resident operative report teaching. Within our institution, 100 resident operative dictations were assessed prior to instituting a formal education session, with a mean score of 24.5. The most commonly missed items in the report were preoperative antibiotics, deep venous thrombosis prophylaxis, and tourniquet time. The mean score of 100 resident operative dictations following the educational session improved to 31.8. CONCLUSION: Most residency programs do not conduct formal resident operative report teaching. Formal instruction on how to complete a comprehensive operative report resulted in a significant improvement in their quality.


Asunto(s)
Internado y Residencia , Procedimientos Ortopédicos , Ortopedia , Competencia Clínica , Educación de Postgrado en Medicina , Ortopedia/educación , Encuestas y Cuestionarios , Estados Unidos
16.
World Neurosurg ; 128: e944-e955, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31100530

RESUMEN

OBJECTIVE: The aim of this systematic literature review is to evaluate recent attempts in creating a standardized multidisciplinary approach combining tumor treatment with current vertebral stabilization techniques for palliative treatment of vertebral metastasis in patients who do not fall into the NOMS (neurologic, oncologic, mechanical, systemic) framework. METHODS: We performed a systematic literature search for studies using a tumor modality in conjunction with kyphoplasty or vertebroplasty. In addition, the bibliographies of selected articles were examined for additional studies not viewed in database searches, which led to the use of additional search terms. RESULTS: A total of 563 articles were found after our database search. Eighteen studies fulfilled our inclusion criteria. Articles were then divided into categories based on combinations of tumor modality. Multiple studies reported significant decreases in visual analog scale scores after combined procedures with very low rates of symptomatic complications. Studies that compared their combination with control treatment groups showed greater clinical efficacy. CONCLUSIONS: Although multidisciplinary management of spinal metastasis using a combination of tumor ablation techniques with vertebral stabilization has been recommended in the previous literature, this review shows that no combination of treatment carried demonstrably different results in pain score reduction, reduced analgesic intake, or improved quality of life. In addition, there is no consensus of standardized variables to evaluate efficacy of treatment, limiting the efficacy of treatment results for the analyzed studies. Although not explicitly included in the initial NOMS framework, our results support the consideration of concomitant percutaneous kyphoplasty or vertebroplasty in these patients on a case-by-case basis.


Asunto(s)
Inestabilidad de la Articulación/patología , Inestabilidad de la Articulación/terapia , Neoplasias de la Columna Vertebral/secundario , Neoplasias de la Columna Vertebral/terapia , Columna Vertebral/patología , Columna Vertebral/cirugía , Humanos , Inestabilidad de la Articulación/cirugía , Procedimientos Neuroquirúrgicos/métodos , Manejo del Dolor , Cuidados Paliativos , Grupo de Atención al Paciente , Neoplasias de la Columna Vertebral/cirugía
17.
Arch Orthop Trauma Surg ; 139(12): 1659-1666, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31020410

RESUMEN

BACKGROUND: The traditional treatment for chondrosarcoma is wide local excision (WLE), as these tumors are resistant to chemotherapy and radiation treatment. While achieving negative margins has traditionally been the goal of chondrosarcoma resection, multiple studies have demonstrated good short-term results after intralesional procedures for low-grade chondrosarcomas (LGCS) with curettage and adjuvant treatments (phenol application, cauterization or cryotherapy) followed by either cementation or bone grafting. Due to the rarity of this diagnosis and the recent application of this surgical treatment modality to chondrosarcoma, most of the information regarding treatment outcomes is retrospective, with short or intermediate-term follow-up. The aim of this study was to assess the long-term results of patients with LGCS of bone treated with intralesional curettage (IC) treatment versus WLE. This retrospective analysis aims to characterize the oncologic outcomes (local recurrence, metastases) and functional outcomes in these two treatment groups at a single institution. METHODS: Using an institutional musculoskeletal oncologic database, we retrospectively reviewed medical records of all patients with LGCS of the appendicular skeleton that underwent surgical treatment between 1985 and 2007. Thirty-two patients (33 tumors) were identified with LGCS; 17 treated with IC and 15 with WLE. RESULTS: Seventeen patients (18 tumors) with a minimum clinical and radiologic follow-up of 10 years were included. Nine patients were treated with IC (four with no adjuvant, three with additional phenol, one with liquid nitrogen and one with H2O2) with either bone graft or cement augmentation, and nine others were treated with WLE and reconstruction with intercalary/osteoarticular allograft or megaprosthesis. The mean age at surgery was 41 years (range 14-66 years) with no difference (p = 0.51) between treatment cohorts. There was a mean follow-up of 13.5 years in the intralesional cohort (range 10-19 years) and 15.9 years in the WLE cohort (range 10-28 years, p = 0.36). Tumor size varied significantly between groups and was larger in patients treated with WLE (8.2 ± 3.1 cm versus 5.4 ± 1.2 cm, at the greatest dimension, p = 0.021). There were two local recurrences (LR), one in the intralesional group and one in the wide local excision group, occurring at 3.5 months and 2.9 years, respectively, and both required revision. No further LR could be detected with long-term follow-up. The MSTS score at final follow-up was significantly higher for patients managed with intralesional procedures (28.7 ± 1.7 versus 25.7 ± 3.4, p = 0.033). There were less complications requiring reoperation in the intralesional group compared with the wide local excision group, although this difference was not found to be statistically significant (one versus four patients, respectively; p = 0.3). CONCLUSION: This series of low-grade chondrosarcoma, surgically treated with an intralesional procedures, with 10-year follow-up, demonstrates excellent local control (88.9%). Complications were infrequent and minor and MSTS functional scores were excellent. Wide resection of LGCS was associated with lower MSTS score and more complications. In our series, the LR in both groups were detected within the first 3.5 years following the index procedure, and none were detected in the late surveillance period.


Asunto(s)
Neoplasias Óseas/cirugía , Condrosarcoma/cirugía , Extremidades/cirugía , Adolescente , Adulto , Anciano , Cementos para Huesos/uso terapéutico , Neoplasias Óseas/fisiopatología , Trasplante Óseo/métodos , Cementación/métodos , Condrosarcoma/fisiopatología , Terapia Combinada , Legrado/métodos , Femenino , Humanos , Peróxido de Hidrógeno/uso terapéutico , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Osteotomía/métodos , Reoperación , Estudios Retrospectivos , Adulto Joven
18.
J Knee Surg ; 32(4): 296-304, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30650443

RESUMEN

Benign and malignant bone tumors around the knee can be encountered with concomitant orthopaedic disease. As such, it is important to recognize these oncologic processes that may impact or alter the routine treatment of more common orthopaedic processes. Frequently, these rare oncologic conditions are discovered only through the evaluation of acute injuries as in the setting of fractures or sports injuries. Other times, they are encountered when evaluating chronic entities, such as arthroplasty. This article aims to provide general guidelines and management strategies for benign bone tumors when they coincide with common orthopaedic conditions around the knee.


Asunto(s)
Neoplasias Óseas/diagnóstico , Hallazgos Incidentales , Artroplastia de Reemplazo de Rodilla , Traumatismos en Atletas/complicaciones , Neoplasias Óseas/complicaciones , Fracturas Espontáneas/etiología , Humanos , Traumatismos de la Rodilla/complicaciones
19.
Int J Spine Surg ; 12(5): 571-581, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30364863

RESUMEN

BACKGROUND: Vertebral disease is a major cause of morbidity in 70% of patients diagnosed with multiple myeloma (MM). Associated osteolytic lesions and vertebral fractures are well documented in causing debilitating pain, functional restrictions, spinal deformity, and cord compression. Currently, treatment modalities for refractory MM spinal pain include systemic therapy, radiotherapy, cementoplasty (vertebroplasty/kyphoplasty), and radio frequency ablation. Our objectives were to report on the efficacy of existing treatments for MM patients with refractory spinal pain, to determine if a standardized treatment algorithm has been described, and to set the foundation upon which future prospective studies can be designed. METHODS: A systematic search of the PubMed database was performed for studies relevant to the treatment of vertebral disease in MM patients. A multitude of search terms in various combinations were used, including but not limited to: "vertebroplasty," "kyphoplasty," "radiation," "multiple myeloma," "radiotherapy," and "radiosurgery." RESULTS: Our preliminary search resulted in 219 articles, which subsequently resulted in 19 papers following abstract, title, full-text, and bibliography review. These papers were then grouped by treatment modality: radiotherapy, cementoplasty, or combination therapy. Significant pain and functional score improvement across all treatment modalities was found in the majority of the literature. While complications of treatment occurred, few were noted to be clinically significant. CONCLUSIONS: Treatment options-radiotherapy and/or cementoplasty-for vertebral lesions and pathologic fractures in MM patients demonstrate significant radiographic and clinical improvement. However, there is no consensus in the literature as to the optimal treatment modality as a result of a limited number of studies reporting head-to-head comparisons. One study did find significantly improved pain and functional scores with preserved vertebral height in favor of kyphoplasty over radiotherapy. When not contraindicated, we advocate for some form of cementoplasty. Further prospective studies are required before implementation of a standardized treatment protocol. LEVEL OF EVIDENCE: 5.

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