The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
D C Mangham - One of the best experts on this subject based on the ideXlab platform.
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RADIOFREQUENCY THERMOCOAGULATION OF ChondroblastomaS
2012Co-Authors: G.l. Cribb, Paul Cool, Bernhard Tins, Radhesh Lalam, D C ManghamAbstract:Introduction Chondroblastomas are rare bone tumours accounting for approximately 1% of all benign bone lesions. They occur in children and adolescents and are more frequent in males. The conventional treatment for Chondroblastomas is surgery, however, this can be difficult and disabling due to the apo- or epiphyseal location. Surgery is curative in most cases, but recurrence rates of 10%–35% have been reported in the literature. Radiofrequency ablation is well established in the treatment of osteoid osteomas and painful bone metastases. We report our experience with the use of radiofrequency ablation in the treatment of Chondroblastomas. Methods Seven patients were identified from our Tumour database with biopsy proven Chondroblastomas who were treated with Percutaneous CT Guided Radiofrequency Thermo coagulation. Results The tumour was successfully treated in all patients with no recurrences. In two cases, complications occurred; infraction of a sub-articular Chondroblastoma in one case and cartilage and bone damage in the unaffected compartment of a knee joint in the other. Discussion Radiofrequency thermocoagulation of Chondroblastomas offers a minimally invasive alternative to open surgery. The risk of complications would appear lower than with open surgery. Multi-tined expandable electrode systems allow the treatment of large Chondroblastomas.
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radiofrequency ablation of Chondroblastoma using a multi tined expandable electrode system initial results
European Radiology, 2006Co-Authors: Bernhard Tins, David Williams, Victor N Cassarpullicino, I W Mccall, P Cool, D C ManghamAbstract:The standard treatment for Chondroblastoma is surgery, which can be difficult and disabling due to its apo- or epiphyseal location. Radiofrequency (RF) ablation potentially offers a minimally invasive alternative. The often large size of Chondroblastomas can make treatment with plain electrode systems difficult or impossible. This article describes the preliminary experience of RF treatment of Chondroblastomas with a multi-tined expandable RF electrode system. Four cases of CT guided RF treatment are described. The tumour was successfully treated in all cases. In two cases, complications occurred; infraction of a subarticular Chondroblastoma in one case and cartilage and bone damage in the unaffected compartment of a knee joint in the other. Radiofrequency treatment near a joint surface threatens the integrity of cartilage and therefore long-term joint function. In weight-bearing areas, the lack of bone replacement in successfully treated lesions contributes to the risk of mechanical failure. Multi-tined expandable electrode systems allow the treatment of large Chondroblastomas. In weight-bearing joints and lesions near to the articular cartilage, there is a risk of cartilage damage and mechanical weakening of the bone. In lesions without these caveats, RF ablation appears promising. The potential risks and benefits need to be evaluated for each case individually.
Chulho Sohn - One of the best experts on this subject based on the ideXlab platform.
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temporal bone Chondroblastoma imaging characteristics with pathologic correlation
Head and Neck-journal for The Sciences and Specialties of The Head and Neck, 2017Co-Authors: Sunwon Park, Jihoon Park, Kyung Chul Moon, Jin Chul Paeng, Byung Se Choi, Koung Mi Kang, Seung Hong Choi, Chulho SohnAbstract:Background Chondroblastoma commonly involves the temporal bone in the craniofacial region, but its imaging features have not been elucidated. This study aimed to describe the imaging features of temporal bone Chondroblastoma with their pathologic correlation. Methods Radiopathologic correlation was performed in 5 patients with temporal bone Chondroblastoma from our database and in 11 patients identified through a PubMed search. Results The cases of temporal bone Chondroblastoma commonly involve the squamous part, temporal and infratemporal fossae, temporomandibular joint, and tympanic cavity, with the following features: high attenuation with calcification; heterogeneity; low signal intensity on T2-weighted imaging with enhancement; a smooth interface to the brain; and strong hypermetabolism on fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT. The heterogeneous low signal intensity on T2-weighted imaging was correlated with various histopathologic components, including calcification and hemosiderin deposition. Conclusion Temporal bone Chondroblastoma usually forms as an expansile, heterogeneous, hypermetabolic mass in the middle cranial fossa, frequently with low signal intensity on T2-weighted imaging, reflecting various degrees of calcification and hemosiderin deposition.
Alexander Y Shin - One of the best experts on this subject based on the ideXlab platform.
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Chondroblastoma with secondary aneurysmal bone cyst of the hamate case report
Journal of Hand Surgery (European Volume), 2012Co-Authors: Peter C Rhee, Thomas C Shives, Eduardo N Novais, Alexander Y ShinAbstract:Chondroblastoma of the carpals is rare, can mimic other benign bone tumors, and presents a diagnostic challenge. There have been few cases of benign tumors involving the hamate, with only one reported case of Chondroblastoma, which was treated with complete hamate excision. We present a case of Chondroblastoma with secondary aneurysmal bone cyst of the hamate treated with curettage, high-speed burring, phenol, and autogenous iliac crest bone grafting. At the time of the most recent radiographic follow-up, there was full graft incorporation, preserved hamate morphology, and no evidence of recurrence.
Bernhard Tins - One of the best experts on this subject based on the ideXlab platform.
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RADIOFREQUENCY THERMOCOAGULATION OF ChondroblastomaS
2012Co-Authors: G.l. Cribb, Paul Cool, Bernhard Tins, Radhesh Lalam, D C ManghamAbstract:Introduction Chondroblastomas are rare bone tumours accounting for approximately 1% of all benign bone lesions. They occur in children and adolescents and are more frequent in males. The conventional treatment for Chondroblastomas is surgery, however, this can be difficult and disabling due to the apo- or epiphyseal location. Surgery is curative in most cases, but recurrence rates of 10%–35% have been reported in the literature. Radiofrequency ablation is well established in the treatment of osteoid osteomas and painful bone metastases. We report our experience with the use of radiofrequency ablation in the treatment of Chondroblastomas. Methods Seven patients were identified from our Tumour database with biopsy proven Chondroblastomas who were treated with Percutaneous CT Guided Radiofrequency Thermo coagulation. Results The tumour was successfully treated in all patients with no recurrences. In two cases, complications occurred; infraction of a sub-articular Chondroblastoma in one case and cartilage and bone damage in the unaffected compartment of a knee joint in the other. Discussion Radiofrequency thermocoagulation of Chondroblastomas offers a minimally invasive alternative to open surgery. The risk of complications would appear lower than with open surgery. Multi-tined expandable electrode systems allow the treatment of large Chondroblastomas.
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radiofrequency ablation of Chondroblastoma using a multi tined expandable electrode system initial results
European Radiology, 2006Co-Authors: Bernhard Tins, David Williams, Victor N Cassarpullicino, I W Mccall, P Cool, D C ManghamAbstract:The standard treatment for Chondroblastoma is surgery, which can be difficult and disabling due to its apo- or epiphyseal location. Radiofrequency (RF) ablation potentially offers a minimally invasive alternative. The often large size of Chondroblastomas can make treatment with plain electrode systems difficult or impossible. This article describes the preliminary experience of RF treatment of Chondroblastomas with a multi-tined expandable RF electrode system. Four cases of CT guided RF treatment are described. The tumour was successfully treated in all cases. In two cases, complications occurred; infraction of a subarticular Chondroblastoma in one case and cartilage and bone damage in the unaffected compartment of a knee joint in the other. Radiofrequency treatment near a joint surface threatens the integrity of cartilage and therefore long-term joint function. In weight-bearing areas, the lack of bone replacement in successfully treated lesions contributes to the risk of mechanical failure. Multi-tined expandable electrode systems allow the treatment of large Chondroblastomas. In weight-bearing joints and lesions near to the articular cartilage, there is a risk of cartilage damage and mechanical weakening of the bone. In lesions without these caveats, RF ablation appears promising. The potential risks and benefits need to be evaluated for each case individually.
David Williams - One of the best experts on this subject based on the ideXlab platform.
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RADIOFREQUENCY THERMOCOAGULATION IN THE TREATMENT OF Chondroblastoma
2006Co-Authors: Ross Barker, Paul Cool, David Williams, Bernhard Tinns, Victor PullicinoAbstract:Purpose: Chondroblastomas are a lesion of immature cartilage found in a typically epiphyseal location. The peak incidence is in teenagers. Current surgical treatment is a balance between complete excision, with potential for physeal and articular cartilage damage, and local recurrence. A minimally invasive technique with a low complication rate providing effective treatment may be provided by radiofrequency (RF) thermocoagulation. Already the treatment of choice for Osteoid Osteoma – another lesion that can occur in the epiphysis.1,2,3 Literature to date on clinical use of RF thermocoagulation in Chondroblastoma is scarce.4 The high water content of Chondroblastoma should ensure its sensitivity to RF ablation. Our units experience in osteoid osteoma has been extended to RF thermocoagulation of Chondroblastoma. Patients: Four patients were treated with RF thermocoagulation for a Chondroblastoma. Minimum follow up one year. Methods: A RITA Starburst probe thermocoagulates the lesion for at least 5 minutes at 90 degrees centigrade. Overnight stay and outpatient follow up until skeletal mature, or two years following treatment. Results: Two Chondroblastomas were in the proximal tibia, one in the distal femur and one in the proximal humerus. One patient had surgery previously and one patient presented with collapse of the proximal tibial plateau. All patients were treated successfully and are pain free. All patients, accepting the one with pre-existing collapse, have a full range of movement. There has been no local recurrence at one year. Conclusion & Discussion: Our experience suggests that radiofrequency thermocoagulation is a safe and effective treatment method for patients with Chondroblastoma.
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radiofrequency ablation of Chondroblastoma using a multi tined expandable electrode system initial results
European Radiology, 2006Co-Authors: Bernhard Tins, David Williams, Victor N Cassarpullicino, I W Mccall, P Cool, D C ManghamAbstract:The standard treatment for Chondroblastoma is surgery, which can be difficult and disabling due to its apo- or epiphyseal location. Radiofrequency (RF) ablation potentially offers a minimally invasive alternative. The often large size of Chondroblastomas can make treatment with plain electrode systems difficult or impossible. This article describes the preliminary experience of RF treatment of Chondroblastomas with a multi-tined expandable RF electrode system. Four cases of CT guided RF treatment are described. The tumour was successfully treated in all cases. In two cases, complications occurred; infraction of a subarticular Chondroblastoma in one case and cartilage and bone damage in the unaffected compartment of a knee joint in the other. Radiofrequency treatment near a joint surface threatens the integrity of cartilage and therefore long-term joint function. In weight-bearing areas, the lack of bone replacement in successfully treated lesions contributes to the risk of mechanical failure. Multi-tined expandable electrode systems allow the treatment of large Chondroblastomas. In weight-bearing joints and lesions near to the articular cartilage, there is a risk of cartilage damage and mechanical weakening of the bone. In lesions without these caveats, RF ablation appears promising. The potential risks and benefits need to be evaluated for each case individually.