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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.
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| Measure | Description | Time Frame |
|---|---|---|
| condylar twist angle and posterior condylar angle | The condylar twist angle (CTA) is an angle between anatomical transepicondylar axis (TEA),which lying from medial epicondyle to lateral epicondyle of the distal femur, and posterior condylar axis (PCAx). The posterior condylar angle (PCA) is an angle between surgical TEA, which lying from medial epicondylar sulcus to lateral epicondyle, and PCAx[1]. | about 5 days |
| Measure | Description | Time Frame |
|---|---|---|
| mediolateral lenght of the distal femur (fML) | The widest mediolateral lenght of the distal femur (fML) in the axial plane which equal to transepicondylar axis | about 5 days |
| medial anteroposterior lengt (fMAP) and lateral anteroposterior lengt (fLAP) |
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Inclusion Criteria:
Exclusion Criteria: Patients with,
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Healty subjects with Turkish ethnic orijin
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| Name | Affiliation | Role |
|---|---|---|
| Nurdan Güngören | Bezmialem Vakif University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Bezmialem Vakıf University | Istanbul | 34093 | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26543278 | Background | Loures FB, Furtado Neto S, Pinto Rde L, Kinder A, Labronici PJ, Goes RF, Marchiori E. Rotational assessment of distal femur and its relevance in total knee arthroplasty: analysis by magnetic resonance imaging. Radiol Bras. 2015 Sep-Oct;48(5):282-6. doi: 10.1590/0100-3984.2014.0037. | |
| 28255946 | Background | Kim TK, Phillips M, Bhandari M, Watson J, Malhotra R. Erratum to: What Differences in Morphologic Features of the Knee Exist Among Patients of Various Races? A Systematic Review. Clin Orthop Relat Res. 2017 May;475(5):1507. doi: 10.1007/s11999-017-5301-1. No abstract available. |
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the longest anteropesterior distances of the medial and lateral condyles over the cartilage tissue od the distal femur on the axial images[2]. |
| about 5 days |
| Distance between trochlear groove and fMAP (DBTG-fMAP) and distance between trochlear groove and lateral fAP(DBTG- fLAP) | MRI sections obtained 3 cm above the tibiofemoral joint will use for evaluation of deepest point of the trochlear groove.The distance between trochlear groove to fMAP and fLAP | about 5 days |
| Medial and lateral posterior condylar cartilage thicknesses (MPCCT/LPCCT) | MPCCT/LPCCT were measured at the deepest point in the axial plan. | about 5 day |