Mega Prosthesis — Indications & Complications
Used for segmental bone loss after tumor resection or non-oncologic massive defects (failed revision arthroplasty, periprosthetic fractures). Common sites: distal femur replacement (DFR), proximal tibia, proximal femur replacement (PFR), proximal humerus. Advantages: immediate stability, early mobilization; modular designs allow intra-op flexibility. Complications: infection, aseptic loosening, soft tissue failure (extensor mechanism in proximal tibia), mechanical breakage. Long-term survivorshi...
Related to
9Osteosarcoma — Workup & Management
wikiLimb Salvage — Endoprostheses
wikiAllografts & Bone Banking
wikiExpandable Prosthesis in Paediatric Oncology
wikiTotal Elbow Arthroplasty — Indications & Outcomes
wikiPeriprosthetic Fractures after TKA — Classification & Management
wikiOsteosarcoma — Diagnosis & Treatment
wikiModular Mega-prosthesis — Knee
wikiKnee Arthrodesis
Practised by MCQ
10What is the most common indication for the use of mega-prostheses in orthopaedic surgery?
mcqWhich complication is most commonly associated with mega-prostheses?
mcqWhat is a key advantage of using modular designs in mega-prostheses?
mcqWhich of the following is NOT a common site for mega-prosthesis implantation?
mcqWhich feature of modern mega-prostheses helps reduce aseptic loosening rates?
mcqIn the context of mega-prosthesis, what does the Mirels scoring system evaluate?
mcqWhat is a potential complication specifically associated with proximal tibia mega-prosthesis?
mcqWhich of the following factors is NOT typically considered when assessing long-term survivorship of mega-prost...
mcqWhat is the purpose of using silver-coated mega-prostheses?
mcqWhich of the following conditions is a non-oncological indication for mega-prosthesis usage?