Kine-Mri in Patellofemoral Instability

NCT ID: NCT01890551

Last Updated: 2013-07-01

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 50 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 1998-01-31
• Study Completion Date: 2013-01-31

Brief 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.

Detailed Description

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 investigators 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

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: NONE

Study Groups

affected knee

Interest was to evaluate the patellofemoral joint biomechanics with KINE-MRI in adolescents with affected and unaffected knees in a case-control study

Group Type: OTHER

Dynamic kine-mri

Intervention Type: OTHER

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

unaffected knee

Interest was to evaluate the patellofemoral joint biomechanics with KINE-MRI in adolescents with affected and unaffected knees in a case-control study

Group Type: OTHER

Dynamic kine-mri

Intervention Type: OTHER

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

Interventions

Dynamic kine-mri

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

Intervention Type: OTHER

Eligibility Criteria

Exclusion Criteria

• did not enroll any patients with the knee trauma, the previous surgery and the osteochondritic lesions.

• Minimum Eligible Age: 10 Years
• Maximum Eligible Age: 16 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Kuopio University Hospital

OTHER

Sponsor Role: lead

Responsible Party

Matti Eskelinen

professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Matti Eskelinen, professor

Role: PRINCIPAL_INVESTIGATOR

Kuopio University Hospital

Locations

Kuopio University Hospital

Kuopio, Northern Savonia, Finland

Countries

Finland

Other Identifiers

KUH5203078

Identifier Type: -

Identifier Source: org_study_id