Patellofemoral Dislocation Clinical Trial
Official title:
Clinical Study Relating to Patients Undergoing Medial Femoral Patellar Ligament Reconstruction (MPFL) With Fascia Lata Allograft: 10-year Follow-up.
The objective of the present study will be to evaluate the clinical patellofemoral joint function (primary endpoint) and radiographically the patellofemoral arthritic degeneration (secondary endpoint) of of MPFL reconstruction with fascia lata allograft at a minimum follow-up of 2, 5 and 10 years in a group of 25 patients.
Status | Recruiting |
Enrollment | 25 |
Est. completion date | December 17, 2025 |
Est. primary completion date | December 17, 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - The potential person is of legal age, capable of providing informed consent and must sign the Informed Consent Form approved by the Ethics Committee (EC). - Diagnosis of MPFL injury, performed before surgery, documented by Magnetic Resonance Imaging (MRI) of the affected knee. - Absence of osteochondral lesions larger than 3 cm2 at the baseline. - The contralateral knee was and is asymptomatic, stable and functional. - The patient must be physically and mentally inclined and must have completed post-operative rehabilitation according to the protocol provided at the time of discharge. Exclusion Criteria: - Local or systemic infection - Knee osteoarthritis documented radiographically at baseline - Articular cartilage injury greater than grade I of Outerbridge detected during surgery. - History of anaphylactic reaction. - Systemic therapy with all types of corticosteroids or immunosuppressants in the 30 days prior to surgery. - Evidence of osteonecrosis in the involved knee. - History of rheumatoid arthritis, inflammatory arthritis or autoimmune pathologies. - Neurological pathologies or conditions that the patient is unsuitable for the rehabilitation protocol. - Untreated meniscal tissue loss greater than 50% at baseline. - State of pregnancy. - Obese or with body mass index BMI> 30 kg / m2. - Association of Trocleoplasty (intervention that produces degenerative changes in the joint in high apercent). |
Country | Name | City | State |
---|---|---|---|
Italy | IRCCS Istituto Ortopedico Rizzoli | Bologna |
Lead Sponsor | Collaborator |
---|---|
Istituto Ortopedico Rizzoli |
Italy,
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* Note: There are 21 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Visual Analogue Scale | It is a straight line with one end (score 0) meaning no pain and the other end (score 10) meaning the worst pain imaginable. A patient marks a point on the line that matches the amount of pain he or she feels. | 120 months | |
Primary | Short-Form 12 | The SF-12 (Short form health survey) is a questionnaire that aims to investigate the perception of individuals' psychophysical conditions. It is taken from a larger version, the SF-36. It is designed to have similar performance to the SF-36, while taking less time to complete.
Two summary scores are reported from the SF-12 - a mental component score (MCS-12) and a physical component score (PCS-12). The scores may be reported as Z-scores (difference compared to the population average, measured in standard deviations). The United States population average PCS-12 and MCS-12 are both 50 points. The United States population standard deviation is 10 points. So each 10 increment of 10 points above or below 50, corresponds to one standard deviation away from the average. |
120 months | |
Primary | Kujala knee Score | The Kujala score is a 13-item questionnaire for the patient-reported assessment of anterior knee pain. Score interval is between 0 (worse result) 100 points (better result) | 120 months | |
Primary | Level of Tegner activity | The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability because of knee problems and 10 represents national or international level soccer | 120 months | |
Primary | Objective evaluation of the International Knee Documentation Committee | The International Knee Documentation Committee (IKDC Questionnaire) is a knee-specific patient-reported outcome which contains sections on knee symptoms (7 items), function (2 items), and sports activities (2 items). It's considered to be one of the most reliable outcome reporting tools in its category and was one of the instruments used in the popular MOON study. IKDC has been subjected to rigorous statistical evaluation and has proven to be a valid and responsive patient-reported outcome measure (PROM).
Scores range from 0 points (lowest level of function or highest level of symptoms) to 100 points (highest level of function and lowest level of symptoms). |
120 months | |
Secondary | Degree of patello-femoral arthritic degeneration | The radiographic evaluation involves the execution of 3 radiographic projections of the operated knee (lateral projection, axial projection of patella at 30° of knee flexion and long-leg standing radiographs.
Radiographs will be evaluated by one independent expert radiologist to determine the degree of patello-femoral arthritic degeneration according to the Iwano radiographic scale. Stage 0 is normal; stage 1 is mild, in which the joint space is at least 3 mm; stage 2 is moderate, in which the joint space is less than 3 mm, but there is no bony contact; stage 3 is severe, in which partial bony contact less than one-quarter of the joint surface is present; and stage 4 is very severe, in which the joint bony surfaces entirely touch each other. |
120 months | |
Secondary | Patellar tilt angle | The tilt angle is defined as the angle subtended by a line joining the medial and lateral edges of the patella and the horizontal, measured on axial projection of patella at 30° of knee flexion. | 120 months | |
Secondary | Sulcus angle | Angle formed between lines joining the highest points of the bony medial and lateral condyles and the lowest bony point of the intercondylar sulcus, measured on axial projection of patella at 30° of knee flexion. | 120 months | |
Secondary | Insall Salvati ratio | The Insall-Salvati ratio or index is the ratio of the patella tendon length respect to the length of the patella.
This can be measured on a lateral knee x-ray, with the knee 30 degrees flexed. |
120 months |
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