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

Completed

• Conditions: Healthy

• Registration Number: NCT04355182
• Lead Sponsor: Bezmialem Vakif University

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.

Study Timeline

• Study Start: 2020-02-01
• Primary Completion: 2020-03-30
• Status Verified: 2020-04
• Study Completion: 2020-04-12
• Study First Submitted: 2020-04-17
• Study First Submitted QC: 2020-04-20
• Last Update Submitted: 2020-04-20
• Study First Posted: 2020-04-21
• Last Update Posted: 2020-04-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 120

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.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
Medial and lateral posterior condylar cartilage thicknesses (MPCCT/LPCCT)	about 5 day	MPCCT/LPCCT were measured at the deepest point in the axial plan.
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
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 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\[2\].

Trial Locations

Locations (1)

Bezmialem Vakıf University; 🇹🇷 Istanbul, Turkey