A Comparison of the Reliability of the Patellar TendonTrochlear Groove (PTTG) Distance and the Tibial TuberosityTrochlear Groove (TTTG) Distance Measured on MR
| Autor: | V Batra, Himanshu Kataria, Vineet Jain, Himanshu Gupta, Pallav Mishra, Ashish Datt Upadhyay, N S Batta, N Goel |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Tibial tuberosity Trochlear groove 030218 nuclear medicine & medical imaging tttg distance 03 medical and health sciences reliability study 0302 clinical medicine Treatment plan Reliability study Medicine Orthopedics and Sports Medicine In patient Reliability (statistics) Orthodontics Orthopedic surgery 030222 orthopedics business.industry pttg distance patello-femoral instability musculoskeletal system Patellar tendon Emergency Medicine Original Article Surgery business RD701-811 |
| Zdroj: | Malaysian Orthopaedic Journal, Vol 14, Iss 1, Pp 34-41 (2020) Malaysian Orthopaedic Journal |
| ISSN: | 1985-2533 |
| Popis: | Introduction An increased tibial tuberosity-trochlear groove (TTTG) distance is used for deciding a treatment plan in patello-femoral instability (PFI). The centre of the patellar tendon and the chondral trochlear groove can be directly visualised on MRI, and measured, giving the patellar tendon-trochlear groove (PTTG) distance. A study was designed to compare the inter-rater and the test-retest reliabilities of PTTG and TTTG measurements in MRI of patients without PFI and in a group with PFI. Materials and methods This cross-sectional reliability study was done on archival MRI films of 50 patients without patellar instability and 20 patients with patellar instability. TTTG and PTTG distances were independently measured by two orthopaedic surgeons and two radiologists. A hybrid PTTG measurement with bony landmarks on the femoral side and the patellar tendon landmark on the tibial side, was used to estimate the influence of the differences in the femoral and tibial landmarks on the difference in reliabilities. The intra-class correlation coefficient (ICC) was calculated for all four raters, as well as separately for each rater. Results The PTTG distance had a higher inter-rater reliability (ICC=0.86, 95% CI=0.79-0.92) compared to the TTTG distance (ICC=0.70, 95% CI=0.59-0.80) in patients without PFI. Similar trends were seen in patients with PFI (0.83 vs 0.66). The inter-rater reliability for the hybrid PTTG distance was found to lie in between the TTTG and PTTG. Conclusions The MRI-based PTTG distance had better inter-rater reliability compared with the MRI-based TTTG distance. |
| Databáze: | OpenAIRE |
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