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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04355182

Enrollment

120

Registered

2020-04-21

Start date

2020-02-01

Completion date

2020-04-12

Last updated

2020-04-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

posterior condylar angle, total knee arthroplasty, external rotation, anthropometric measurements, 3 degrees, Turkish population

Brief summary

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.

Detailed description

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 70 Years

Healthy volunteers

Yes

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.

Design outcomes

Primary

Measure	Time frame	Description
condylar twist angle and posterior condylar angle	about 5 days	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\[1\].

Secondary

Measure	Time frame	Description
mediolateral lenght of the distal femur (fML)	about 5 days	The widest mediolateral lenght of the distal femur (fML) in the axial plane which equal to transepicondylar axis
medial anteroposterior lengt (fMAP) and lateral anteroposterior lengt (fLAP)	about 5 days	the longest anteropesterior distances of the medial and lateral condyles over the cartilage tissue od the distal femur on the axial images\[2\].
Distance between trochlear groove and fMAP (DBTG-fMAP) and distance between trochlear groove and lateral fAP(DBTG- fLAP)	about 5 days	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
Medial and lateral posterior condylar cartilage thicknesses (MPCCT/LPCCT)	about 5 day	MPCCT/LPCCT were measured at the deepest point in the axial plan.

Countries

Turkey (Türkiye)

Outcome results