Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Tumor 247 articles


Poor Long-term Clinical Results of Saddle Prosthesis After Resection of Periacetabular Tumors

J. A. Jansen MD, M. A. J. Sande PhD, P. D. S. Dijkstra PhD

The saddle prosthesis originally was developed to reconstruct large acetabular defects in revision hip arthroplasty and was used primarily for hip reconstruction after periacetabular tumor resections. The long-term survival of these reconstructions is unclear.

Constrained Total Hip Megaprosthesis for Primary Periacetabular Tumors

Takafumi Ueda MD, PhD, Shigeki Kakunaga MD, PhD, Satoshi Takenaka MD, PhD, Nobuhito Araki MD, PhD, Hideki Yoshikawa MD, PhD

Limb-salvage reconstruction for periacetabular malignant tumors is one of the most challenging problems in orthopaedic oncology. Reconstructive options include resection arthroplasty, endoprosthesis, allograft, recycled autobone graft, arthrodesis, and pseudarthrosis. However, no standard procedure exists because of rarity and clinical variability of the disease. We previously developed a megaprosthetic system with a constrained total hip mechanism (C-THA).

Can a Less Radical Surgery Using Photodynamic Therapy With Acridine Orange Be Equal to a Wide-margin Resection?

Takao Matsubara MD, Katsuyuki Kusuzaki MD, Akihiko Matsumine MD, Tomoki Nakamura MD, Akihiro Sudo MD

Wide-margin resections are an accepted method for treating soft tissue sarcoma. However, a wide-margin resection sometimes impairs function because of the lack of normal tissue. To preserve the normal tissue surrounding a tumor, we developed a less radical (ie, without a wide margin) surgical procedure using adjunctive photodynamic therapy and acridine orange for treating soft tissue sarcoma. However, whether this less radical surgical approach increases or decreases survival or whether it increases the risk of local recurrence remains uncertain.

Surgery Quality and Tumor Status Impact on Survival and Local Control of Resectable Liposarcomas of Extremities or the Trunk Wall

Piotr Rutkowski MD, PhD, Sławomir Trepka MD, PhD, Konrad Ptaszynski MD, PhD, Milena Kołodziejczyk MD, PhD

The 5-year survival rates for localized liposarcomas reportedly vary from 75% to 91% with histologic grade as the most important prognostic factor. However, it is unclear which other factors, including the initial surgery quality and recurrent tumors, influence survival in localized liposarcomas (LPS).

Surgical Resection of Relapse May Improve Postrelapse Survival of Patients With Localized Osteosarcoma

Kwok Chuen Wong FHKAM (Orth), Vincent Lee FHKAM (Paed), MRCP, Matthew M. K. Shing FHKAM (Paed), MRCPCH, Shekhar Kumta PhD

Despite neoadjuvant chemotherapy and wide surgical ablation, 15% to 25% of patients with primary osteosarcoma will relapse (local recurrence or metastases). Neither chemotherapy nor radiation therapy alone will render a patient disease-free without concomitant surgical ablation of relapse. We prefer excision of relapse when possible. However, it is unclear whether excision enhances survival.

Does Combined Open and Arthroscopic Synovectomy for Diffuse PVNS of the Knee Improve Recurrence Rates?

Matthew W. Colman MD, Jason Ye MD, Kurt R. Weiss, Mark A. Goodman MD, Richard L. McGough MD

Diffuse-type pigmented villonodular synovitis (PVNS) has a high local recurrence rate and as such can lead to erosive destruction of the involved joint. Multiple surgical modalities exist, but it is unknown which technique best minimizes local recurrence and surgical morbidity.

Orthopaedic Case of the Month: Painless Right Knee Mass in 32-year-old Man

Michael K. Merz MD, Mansooreh Eghtesadghalati MD, Michael E. Bresler MD, Yasser R. Farid MD, PhD

Treating Metastatic Disease: Which Survival Model Is Best Suited for the Clinic?

Jonathan Agner Forsberg MD, Daniel Sjoberg MA, Qing-Rong Chen PhD, Andrew Vickers PhD, John H. Healey MD

To avoid complications associated with under- or overtreatment of patients with skeletal metastases, doctors need accurate survival estimates. Unfortunately, prognostic models for patients with skeletal metastases of the extremities are lacking, and physician-based estimates are generally inaccurate.

Making a Case for the Socioeconomic Determinacy of Survival in Osteosarcoma

Saminathan S. Nathan FRCS, John H. Healey FACS

The literature on osteosarcoma survival generally focuses on tumor and treatment variables, although it is unclear whether and how ethnic and socioeconomic factors might influence survival.

Primary Osseous Tumors of the Hindfoot: Why the Delay in Diagnosis and Should We Be Concerned?

Peter S. Young MRCS, Stuart W. Bell MRCS, MRCP, Elaine M. MacDuff BSc, MBChB, FRCPath, Ashish Mahendra FRCS Tr & Orth

Bony tumors of the foot account for approximately 3% of all osseous tumors. Diagnosis is frequently delayed as a result of lack of clinician familiarity and as a result of their rarity. The reasons for the delays, however, are unclear.