Diagnostic Algorithm in Patients with Flexion Instability after Cruciate-Retaining Total Knee Arthroplasty: A Case Report

Autor: Silvan Hess, Ponnaian Prabhakar, Lukas B. Moser, Michael T. Hirschmann
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Clinics and Practice
Clinics and Practice, Vol 11, Iss 84, Pp 687-693 (2021)
ISSN: 2039-7283
2039-7275
Popis: A posterior flexion instability due to insufficiency of the posterior cruciate ligament (PCL) in cruciate retaining (CR) total knee arthroplasty (TKA) is an important but underdiagnosed problem. We hereby suggest a diagnostic algorithm, as demonstrated by a case report of a male patient suffering from anterior knee pain and instability after CR TKA. Clinical examination was followed by standard anterior–posterior and lateral radiographs. Stress radiographs in 30° and 90° posterior drawer position enabled a dynamic examination of the instability. SPECT/CT was used to determine the TKA component position in all planes and investigate bone tracer uptake (BTU) patterns. At revision surgery, an absent PCL after CR TKA was noted and a semi-constrained TKA was implanted.
Databáze: OpenAIRE