Clinical trial NCT04355182: Is Standard 3-degree of External Rotation for Posterior Femoral Cut Relevant for Turkish Population
Official title: Is Standard 3-degree of External Rotation for Posterior Femoral Cut Relevant for Turkish Population: An Anthropometric MRI Study
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Healthy
Keywords: posterior condylar angle
total knee arthroplasty
external rotation
anthropometric measurements
3 degrees
Turkish population
Lead sponsor: Bezmialem Vakif University
Sponsor class: OTHER
First posted: 2020-04-21
Enrollment: 120
Sex: ALL
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Healty subjects with Turkish ethnic orijin

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.

Eligibility criteria: 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.

Primary outcomes:
measure: condylar twist angle and posterior condylar angle
timeFrame: about 5 days
Secondary outcomes:
measure: mediolateral lenght of the distal femur (fML)
timeFrame: about 5 days
measure: medial anteroposterior lengt (fMAP) and lateral anteroposterior lengt (fLAP)
timeFrame: about 5 days
measure: Distance between trochlear groove and fMAP (DBTG-fMAP) and distance between trochlear groove and lateral fAP(DBTG- fLAP)
timeFrame: about 5 days
measure: Medial and lateral posterior condylar cartilage thicknesses (MPCCT/LPCCT)
timeFrame: about 5 day
Other outcomes:
Locations:
city: Istanbul
country: Turkey
facility: Bezmialem Vakıf University
Study officials:
affiliation: Bezmialem Vakif University
name: Nurdan Güngören
role: PRINCIPAL_INVESTIGATOR
References:
citation: 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.
citation: 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.