Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Tumor 247 articles


Case Report: Mesenchymal Chondrosarcoma of the Lumbar Spine in a Child

Aristidis H. Zibis MD, PhD, M. Wade Shrader MD, Lee S. Segal MD

Chondrosarcomas of the spine constitute 4% to 10% of all primary spinal bone tumors and approximately 70% of the cases occur during the second or third decade of life. Mesenchymal chondrosarcoma is a rare aggressive variant of chondrosarcoma. The prognosis of mesenchymal chondrosarcoma is usually poor with a tendency for late local recurrence and metastasis.

Radiofrequency Ablation of Osteoid Osteoma in Atypical Locations: A Case Series

Shahram Akhlaghpoor MD, Alireza Aziz Ahari MD, Abbas Arjmand Shabestari MD, Mohammad Reza Alinaghizadeh MSc

Osteoid osteoma has a nidus surrounded by sclerotic bone with a size usually less than 20 mm. Its diagnosis is made on typical presentation of nocturnal pain and imaging findings. Excision of the niduses, which are often small and difficult to precisely identify, sometimes may result in resection of surrounding normal bone. Minimally invasive percutaneous treatments have been used to try to minimize resection of normal bone. Although minimally invasive radiofrequency ablation generally relieves pain, its ability to relieve pain is less well known in locations other than lower extremity long bones.

Intercalary Allograft Reconstructions Using a Compressible Intramedullary Nail: A Preliminary Report

Benjamin J. Miller MD, Walter W. Virkus MD

Although intercalary allograft reconstructions are commonly performed using intramedullary devices, they cannot generate compression across host-allograft junctions. Therefore, they sometimes are associated with gap formation and suboptimal healing conditions.

Case Report: Hemosiderotic Fibrohistiocytic Lipomatous Lesion: A Clinicopathologic Characterization

Vincent M. Moretti MD, John S. J. Brooks MD, Christian M. Ogilvie MD

A hemosiderotic fibrohistiocytic lipomatous lesion, also called hemosiderotic fibrolipomatous tumor, is a rare and recently described fibrolipomatous entity. Initially considered the result of a reactive inflammatory process from trauma or vascular disease, newer evidence suggests it may be neoplastic in origin.

No Recurrences in Selected Patients after Curettage with Cryotherapy for Grade I Chondrosarcomas

Badio S. Souna MD, Nicolas Belot MD, Hélène Duval MD, Frantz Langlais MD, Hervé Thomazeau MD

The low aggressiveness of Grade I chondrosarcomas is compatible with conservative surgical treatment.

MRI-guided Navigation Surgery with Temporary Implantable Bone Markers in Limb Salvage for Sarcoma

June Hyuk Kim MD, Hyun Guy Kang MD, PhD, Han-Soo Kim MD, PhD

Technical errors during navigation-assisted bone tumor resection may occur by: (1) incorrect registration of images and corresponding anatomic points of bone sent to the navigation system; and (2) incorrect fusion of two or more images that have been transported to the navigation system.