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…
Management of Knee Instability: Use of Hinged Implants
CASE STUDY A 77-year-old woman suffered a ground-level fall 9 months before presentation in which she sustained a comminuted left distal femur fracture. Before the fall, she was a community…
Management of Bone Defects Using Bone Graft
CASE STUDY A 56-year-old man with no significant medical history had a left medial unicondylar arthroplasty done at an outside institution for isolated medial knee osteoarthritis. He presented to our…
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…
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….
Revision Total Knee Arthroplasty
CASE STUDY A 59-year-old man presented for evaluation of a stiff and painful revision total knee arthroplasty (TKA). The patient was experiencing significant dysfunction due to his limited range of…
Exposures for Revision Knee Arthroplasty
CASE STUDIES Case 1: Exposure With a Quadriceps Snip A 68-year-old woman underwent left total knee arthroplasty (TKA) for osteoarthritis 12 years ago. During the 2 years before presentation to…
Implant Removal in Revision Total Knee Arthroplasty
Algorithm This algorithm presents the approach for implant removal in total knee arthroplasty. Chapter Preview Chapter Synopsis Implant extraction should be performed cautiously and with attention to avoiding iatrogenic damage….
Revising the Failed Unicompartmental Knee Arthroplasty
CASE STUDY In September 2008, a 72-year-old white woman underwent an Oxford mobile-bearing unicompartmental knee arthroplasty (UKA) (Biomet, Inc., Swindon, U.K.) for anteromedial tibiofemoral osteoarthritis to her left knee (…
Manipulation
CASE STUDY An active 59-year-old male patient with osteoarthritis of the right knee underwent total knee arthroplasty with a posterior-stabilized prosthesis. Preoperative range of motion (ROM) was 5 degrees of…
