ABSTRACT
El osteosarcoma paraostal surge en la superficie de los huesos largos, evitando el canal medular. El pico de incidencia es durante la tercera década de vida, y la enfermedad afecta a más mujeres que hombres. Dentro del osteosarcoma paraostal, la variedad yuxtacortical es de las más comunes: constituye 1 a 6% de los osteosarcomas. El análisis radiográfico clásico del osteosarcoma muestra una gran densidad de osificación y masa lobulada, usualmente en la cara posterior del fémur distal, con preservación de la cavidad medular. Se presenta un paciente masculino de 31 años con cuadro clínico de dolor en rodilla izquierda, quien ingresa por medio de la consulta y se inicia tratamiento para resección en bloque de tumor más colocación de prótesis OSS; el tratamiento consistió en resección amplia de aproximadamente 14 cm de tibia proximal, así como la colocación de prótesis modular no convencional para tibia con resultado radiográfico y clínico bueno y satisfactorio a las tres semanas de evolución.
Parosteal osteosarcoma originates on the surface of long bones and spares the medullary canal. Its peak incidence occurs in the third decade of life and it is more frequent in females than males. The juxtacortical variety of parosteal osteosarcoma is one of the most common ones, accounting for 1-6% of all osteosarcomas. The classical radiographic appearance of osteosarcoma includes high ossification density and a lobed mass, usually in the posterior aspect of the distal femur, sparing the medullary canal. We report herein the case of a 31 year-old male patient with a clinical picture that included left knee pain and who was seen as outpatient. He was started on treatment for en-bloc resection of the tumor and implantation of the OSS (Orthopedic Salvage System) prosthesis. Treatment consisted of broad resection of the proximal tibia, of approximately 14 cm, as well as the implantation of a non-conventional modular tibial prosthesis. Both the radiographic and the clinical results were good and appropriate at the three week follow up.
Subject(s)
Adult , Humans , Male , Bone Neoplasms/surgery , Osteosarcoma , Prostheses and Implants , Tibia , Prosthesis DesignABSTRACT
Parosteal osteosarcoma originates on the surface of long bones and spares the medullary canal. Its peak incidence occurs in the third decade of life and it is more frequent in females than males. The juxtacortical variety of parosteal osteosarcoma is one of the most common ones, accounting for 1-6% of all osteosarcomas. The classical radiographic appearance of osteosarcoma includes high ossification density and a lobed mass, usually in the posterior aspect of the distal femur, sparing the medullary canal. We report herein the case of a 31 year-old male patient with a clinical picture that included left knee pain and who was seen as outpatient. He was started on treatment for enbloc resection of the tumor and implantation of the OSS (Orthopedic Salvage System) prosthesis. Treatment consisted of broad resection of the proximal tibia, of approximately 14 cm, as well as the implantation of a nonconventional modular tibial prosthesis. Both the radiographic and the clinical results were good and appropriate at the three week follow up.
Subject(s)
Bone Neoplasms/surgery , Osteosarcoma/surgery , Prostheses and Implants , Tibia , Adult , Humans , Male , Prosthesis DesignABSTRACT
Total knee arthroplasty is an increasingly common procedure that provides safe and effective pain relief and function restoration in patients with arthritis and osteoarthrosis. The success of the procedure is multifactorial, with implant alignment as one of the major factors involved in a satisfactory and reliable result. Total knee arthroplasty with surgical navigation was designed with the purpose of helping the surgeon improve implant alignment and position while he maintains control over the cuts made and fixation. We reviewed this article on the origins of navigation, the technical details, the advantages and disadvantages, including a glance at future uses and the reason why its use in knee replacement surgery plays such an important role; it has multiple applications and a reproducibility that turn it into an increasingly common, safe and successful procedure.
