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Are the osseous and tendinous-cartilaginous tibial tuberosity-trochlear groove distances the same on CT and MRI?
- Source :
-
Skeletal radiology [Skeletal Radiol] 2015 Aug; Vol. 44 (8), pp. 1085-93. Date of Electronic Publication: 2015 Feb 24. - Publication Year :
- 2015
-
Abstract
- Objective: To verify whether the tibial tuberosity-trochlear groove distance (TT-TG) and the tendinous-cartilaginous TT-TG (the distance between the patellar tendon and trochlear groove: PT-TG) are identical using computed tomography (CT) and magnetic resonance imaging (MRI) techniques.<br />Subjects and Methods: The TT-TG and PT-TG distances were measured on the same knee samples by three observers (two measurements per observer) using CT and MRI scans collected retrospectively. The reproducibility of the measurements was assessed using the interclass correlation coefficient (ICC). The means and standard deviations of four measurements were calculated for each patient. A paired t-test was used to assess differences between measurements.<br />Results: Fifty knee samples (32 with patellar instability and 18 with other conditions) were evaluated. The inter- and intraobserver reliability was excellent for all four measurements (>0.8). On average, the TT-TG distance on MRI was 3.1-3.6 mm smaller than that on CT, and the PT-TG distance on MRI was 1.0-3.4 mm larger than the TT-TG distance on MRI.<br />Conclusion: The osseous TT-TG and tendinous-cartilaginous PT-TG distances determined by CT and MRI were not identical.
- Subjects :
- Adolescent
Adult
Cartilage diagnostic imaging
Female
Humans
Male
Middle Aged
Models, Anatomic
Observer Variation
Patellofemoral Joint diagnostic imaging
Reproducibility of Results
Sensitivity and Specificity
Tendons diagnostic imaging
Tibia diagnostic imaging
Young Adult
Cartilage anatomy & histology
Magnetic Resonance Imaging methods
Patellofemoral Joint anatomy & histology
Tendons anatomy & histology
Tibia anatomy & histology
Tomography, X-Ray Computed methods
Subjects
Details
- Language :
- English
- ISSN :
- 1432-2161
- Volume :
- 44
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Skeletal radiology
- Publication Type :
- Academic Journal
- Accession number :
- 25708103
- Full Text :
- https://doi.org/10.1007/s00256-015-2118-4