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Pedro Ignacio Carvallo

Hospital Oncológico Padre Machado, Venezuela

Presentation Title:

Complications in oncological orthopedic surgery: A new classification proposal

Abstract

Background: In 1999 Wirganowicz reviewed a group of 278 patients, after a limb preserving surgery for neoplastic diseases, finding 64 cases (24,1%) with complications: aseptic loosening (44%), fatigue fractures (16%), local recurrence (14%), infection (13%) and failure of the extensor mechanism (6%). In 2011 Henderson et al. amplified Wirganowicz’ adding three types of mechanical failures, and two nonmechanical, proposing five types: Type 1: failure of soft tissues, Type 2: aseptic loosening, Type 3: structural failures, Type 4: infections, and Type 5: tumor progression; emphasizing in the anatomical location, and the way and time of the event. In 2014 the International Society of Limb Salvage (ISOLS), selected a group of distinguished specialists to get an step further in this matter, and Henderson et al. published their final proposal in the JBJS vol. 96-B, No.11, 1436-1440, 2014.

Objective: When analyzing this last classification, several aspects can be found which make its use no practical. These kind of proposals must be organized and clear, being the simpler the better, in order to be useful. Thinking of offering a better proposal, a new classification is offered for consideration.

Conclusion: A new proposal for Classification of Post-Operative Complications in Orthopedic Oncology, is attached.

Biography

Pedro Ignacio Carvallo is a highly respected orthopedic surgeon and oncologist with specialized expertise in bone tumor management. Since 1984, he has served as the Teaching Coordinator for the Bone Tumors Service at Hospital Oncológico Padre Machado and has maintained a private practice at Centro Médico de Caracas and C.M. Docente La Trinidad. He is a dedicated member of the Venezuelan Society of Orthopaedic Surgery and an honorary member of the Venezuelan Society of Oncology. Carvallo’s commitment to advancing musculoskeletal tumor research led him to co-found the Sociedad Latinoamericana de Tumores Músculo-Esqueléticos in 1996, the Musculoskeletal Tumors Committee at the Institute of Pathology – Universidad Central de Venezuela in 2003, and the Asociación Venezolana para el Estudio de Tumores Músculo-Esqueléticos in 2007. In 2013, he established the Asociación de Amigos de la Cirugía Preservadora de Extremidades. His international affiliations include the International Society of Limb Salvage (since 2001), the British Orthopaedic Association, and the Girdlestone Orthopaedic Society of Oxford, England (both since 1984). Most recently, he joined the American College of Surgeons in 2024, further solidifying his standing as a distinguished leader in his field.