Previous Acetabular Fracture David G. Lewallen Key Concepts Posttraumatic degenerative changes of the hip are common after acetabular fracture. Fracture sequelae can include residual deformity due to malreduction and/or malunion….
Transtrochanteric Approaches Daniel J. Berry Key Concepts Transtrochanteric approaches to the hip joint are not needed for most primary total hip arthroplasties (THA) but when used can provide wide exposure…
Anterolateral Approaches Stephen M. Petis Kevin I. Perry Key Concepts The anterolateral approach to the hip, also known as the modified Hardinge approach, is a well-established surgical approach to the…
Periprosthetic Fracture Matthew W. Tetreault Brandon J. Yuan Matthew P. Abdel Key Concepts Periprosthetic fractures around the knee are relatively uncommon. Management considerations include fracture location and displacement, stability of…
Extensor Mechanism Deficiency Matthew P. Abdel Arlen D. Hanssen Key Concepts Extensor mechanism deficiency following total knee arthroplasty (TKA) can occur owing to disruption of the patellar tendon or the…
Infection: Two-Stage Methods Timothy S. Brown Kevin I. Perry Key Concepts Successful treatment of knee chronic periprosthetic infection begins with complete removal of implants, cement, and foreign material and includes…
Patellar Bone Loss Kevin I. Perry Arlen D. Hanssen Key Concepts The majority of patellar revisions are performed with standard or biconvex patellar components. Less than 10% of revision total…
Patellar Instability Timothy S. Brown Rafael J. Sierra Key Concepts Patellar instability is a common cause of anterior knee pain and stiffness following total knee arthroplasty (TKA). The most common…
Knee Stiffness Stephen M. Petis Mark W. Pagnano Key Concepts Stiffness after total knee arthroplasty (TKA) is a frustrating problem for patient and surgeon alike. Few patients with substantial limitation…
Tibiofemoral Instability Timothy S. Brown Matthew P. Abdel Key Concepts Instability accounts for approximately 10 to 25% of revision total knee arthroplasties (TKAs). Types of tibiofemoral instability include: Sagittal (anteroposterior)…
