Is Standard 3-degree of External Rotation for Posterior Femoral Cut Relevant for Turkish Population

Is Standard 3-degree of External Rotation for Posterior Femoral Cut Relevant for Turkish Population: An Anthropometric MRI Study

The aim of this study is to evaluate the posterior condylar angle of the distal femur in Turkish population and its concordance with the current standard prosthesis designs used in total knee arthroplasty and to evaluate anthropometric features of the distal femur in the Turkish population.

The investigators would like to measure condylar twist angles(CTA), posterior condylar angles(PCA), femoral mediolateral lengths (fML), medial femoral anteroposterior lengths(fMAP), lateral femoral anteroposterior lengths (fLAP), distances between trochlear groove and fMAP(DBTG-fMAP), distances between trochlear groove and fLAP(DBTG-fLAP), medial and lateral posterior condylar cartilage thicknesses(MPCCT/LPCCT) on the Magnetic Resonance Images (MRI) of 240 knees of 120 Turkish subjects.

Inclusion Criteria:

• non-arthritic knees,

Exclusion Criteria: Patients with,

• intra- or extraarticular deformity on the X-rays or MRIs,
• history of previous extremity surgery,
• history of any systemic disease,
• a BMI of 35 or over.