ORTHOPEDIC

Classification and Treatment of Patella Fractures

May 29, 2019 by in ORTHOPEDIC Comments Off on Classification and Treatment of Patella Fractures

Algorithm The following is a classification scheme and treatment algorithm for periprosthetic patella fractures: Chapter Preview Periprosthetic patella fractures are a rare complication after primary total knee arthroplasty. The cause…

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Patella Instability

May 29, 2019 by in ORTHOPEDIC Comments Off on Patella Instability

CASE STUDY A 55-year-old woman presented to the office with persistent anterior knee pain and swelling after a revision total knee arthroplasty (TKA) performed 1 year earlier. She reported some…

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Overview of the Microbiology

May 29, 2019 by in ORTHOPEDIC Comments Off on Overview of the Microbiology

Introduction In his 1920 commentary in the British Journal of Surgery , Lord Berkeley Moynihan commented, “Every operation in surgery is an experiment in bacteriology.” What the renowned surgeon was…

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Patellar Bone Loss

May 29, 2019 by in ORTHOPEDIC Comments Off on Patellar Bone Loss

Patellar Bone Grafting Michael J. Taunton, MD Arlen D. Hanssen, MD CASE STUDY Case 1 An 80-year-old woman presented 14 years after a primary total knee arthroplasty (TKA) with failure due to…

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Classification of Bone Defects

May 29, 2019 by in ORTHOPEDIC Comments Off on Classification of Bone Defects

Introduction Revision total knee arthroplasty (TKA) is challenging in the presence of significant bone loss. In the revision setting, bone deficiencies can be secondary to removal of the implant, subsidence…

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Use of Constrained Implants

May 29, 2019 by in ORTHOPEDIC Comments Off on Use of Constrained Implants

CASE STUDY An 85-year-old man presented with a painful knee 5 years after a total knee arthroplasty was performed through a limited medial incision; the posterior-stabilized prosthesis used had a…

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Balancing the Gaps

May 29, 2019 by in ORTHOPEDIC Comments Off on Balancing the Gaps

Algorithm The three-step algorithm above is used as a guide for revision total knee arthroplasty (TKA) Introduction TKA poses significant challenges to achieving fixation, stability, alignment, and joint line restoration….

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