Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'NON_RANDOMIZED', 'maskingInfo': {'masking': 'NONE'}, 'primaryPurpose': 'DIAGNOSTIC', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 50}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '1998-01'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2013-06', 'completionDateStruct': {'date': '2013-01', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2013-06-27', 'studyFirstSubmitDate': '2013-06-18', 'studyFirstSubmitQcDate': '2013-06-27', 'lastUpdatePostDateStruct': {'date': '2013-07-01', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2013-07-01', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2013-01', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Bisect Offset (BSO)', 'timeFrame': 'One year', 'description': 'BSO is the ratio of medial to lateral displacement of the patella (Brossmann et al. Radiology 1993).'}], 'secondaryOutcomes': [{'measure': 'Lateral Patellar Displacement (LPD)', 'timeFrame': 'One year', 'description': 'LPD is the lateral displacement of the patella.'}, {'measure': 'Patellar Tilt Angle (PTA)', 'timeFrame': 'One year', 'description': 'PTA measures the lateral tilting of the patella.'}, {'measure': 'Sulcus Angle', 'timeFrame': 'One year', 'description': 'Sulcus Angle measures the angle formed by the medial and lateral borders of the trochlea'}, {'measure': 'Insall-Salvati-ratio', 'timeFrame': 'One year', 'description': 'Insall-Salvati-ratio measures the ratio of the length of the patella to the length of the patellar ligament.'}]}, 'oversightModule': {'oversightHasDmc': False}, 'conditionsModule': {'keywords': ['Adoloescent, patellofemoral, instability,biomechanics, magnetic resonance imaging'], 'conditions': ['Affected and Unaffected Knee in Adoloescent']}, 'descriptionModule': {'briefSummary': '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.', 'detailedDescription': '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.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD'], 'maximumAge': '16 Years', 'minimumAge': '10 Years', 'healthyVolunteers': True, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* The inclusion criteria for the 29 patients were as follows: objective patellar instability with or without objective or episodic patellar dislocation, anterior knee pain for more than one year with positive apprehension tests, J-tracking of the patella, lateral tilt and displacement proven clinically.\n\nExclusion Criteria:\n\n* did not enroll any patients with the knee trauma, the previous surgery and the osteochondritic lesions.'}, 'identificationModule': {'nctId': 'NCT01890551', 'acronym': 'Knee- MRI 2012', 'briefTitle': 'Kine-Mri in Patellofemoral Instability', 'organization': {'class': 'OTHER', 'fullName': 'Kuopio University Hospital'}, 'officialTitle': 'Dynamic Kine-mri in Patellofemoral Instability in Adolescents- an Aid in the Diagnosis', 'orgStudyIdInfo': {'id': 'KUH5203078'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'OTHER', 'label': 'affected knee', 'description': 'Interest was to evaluate the patellofemoral joint biomechanics with KINE-MRI in adolescents with affected and unaffected knees in a case-control study', 'interventionNames': ['Other: Dynamic kine-mri']}, {'type': 'OTHER', 'label': 'unaffected knee', 'description': 'Interest was to evaluate the patellofemoral joint biomechanics with KINE-MRI in adolescents with affected and unaffected knees in a case-control study', 'interventionNames': ['Other: Dynamic kine-mri']}], 'interventions': [{'name': 'Dynamic kine-mri', 'type': 'OTHER', 'description': 'Dynamic kinematic (KINE) magnetic resonance imaging (MRI) of the patellofemoral joint.', 'armGroupLabels': ['affected knee', 'unaffected knee']}]}, 'contactsLocationsModule': {'locations': [{'zip': '70029', 'city': 'Kuopio', 'state': 'Northern Savonia', 'country': 'Finland', 'facility': 'Kuopio University Hospital', 'geoPoint': {'lat': 62.89238, 'lon': 27.67703}}], 'overallOfficials': [{'name': 'Matti Eskelinen, professor', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Kuopio University Hospital'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Kuopio University Hospital', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'professor', 'investigatorFullName': 'Matti Eskelinen', 'investigatorAffiliation': 'Kuopio University Hospital'}}}}