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Kine-Mri in Patellofemoral Instability

NCT01890551 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2013-07-01

No results posted yet for this study

Summary

Purpose: The impact of kinematic-MRI (KINE-MRI) in the patellofemoral instability and anterior knee pain of the adolescents is rarely reported.Interest was to evaluate the patellofemoral joint biomechanics with KINE-MRI in adolescents with affected and unaffected knees in a case-control study.Methods: KINE-MRI was performed in 29 adolescents (affected knee group, AKG, n=29 and n=26 unaffected knee group, UAKG, n=26) aged 11-16 years with unilateral patellofemoral instability. For the control group invvestigators enrolled ten healthy age- and sex-matched volunteers (healthy knee group, HKG, n=19 ).The study parameters, Bisect Offset (BSO), Lateral Patellar Displacement (LPD), Patellar Tilt Angle (PTA), Sulcus Angle and Insall-Salvati ratio at 0, 10, 20 and 30 degrees of flexion-extension, were measured for the AKG patients (n=29), and UAKG patients (n=26) and the HKG subjects (n=19). Results: In a comparison between the AKG patients and the HKG subjects there was a significant difference in the BSO-ratio, LPD-test and PTA-test. In these parameters the difference between the AKG patients and the HKG subjects progressively increased towards the full extension of the knee. In the AKG and UAKG patients BSO-ratio at 0 degree ranged between 0.5 and 1.2 in both groups, whereas the BSO-ratio in the HKG subjects ranged between 0.33 and 0.75 (P \< .001). At the zero degree the LPD-test ranged between 0 and 10 mm in the AKG patients and between 0 and 35 mm in the UAKG patients, whereas the lateral displacement-test ranged between 0 and 5 mm in the HKG subjects (P = .003). Patellar tilt angle-test ranged between -30 and 20 degrees in the AKG patients and between -30 and 24 degrees in the UAKG patients and in the HKG subjects the PTA-test ranged between 10 and 24 degrees (P \< .001).Conclusion: The KINE-MRI could be a feasible method for the evaluation of patellar tracking in adolescents.

Conditions

  • Affected and Unaffected Knee in Adoloescent

Interventions

OTHER

Dynamic kine-mri

Dynamic kinematic (KINE) magnetic resonance imaging (MRI) of the patellofemoral joint.

Sponsors & Collaborators

  • Kuopio University Hospital

    lead OTHER

Principal Investigators

  • Matti Eskelinen, professor · Kuopio University Hospital

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
10 Years
Max Age
16 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
1998-01-31
Primary Completion
2013-01-31
Completion
2013-01-31

Countries

  • Finland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01890551 on ClinicalTrials.gov