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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01892514
Other study ID # AVN-13
Secondary ID
Status Completed
Phase Phase 3
First received
Last updated
Start date April 2013
Est. completion date April 2018

Study information

Verified date May 2023
Source Istituto Ortopedico Rizzoli
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Femoral head avascular necrosis is a relatively common disease (10,000 - 20,000 yearly new United States of America cases) characterized by ischemic cell necrosis in a hip proximal epiphysis area frequently requiring total Hip Arthroplasty (THA). Even though THA resolves symptoms and restores good joint function, young patients are prone to major disabilities and require prosthesis revision surgeries. In this clinical trial a comparison between two groups of patients, treated with the same procedure but with two different regenerative techniques, will be performed: 1. 52 patients with necrosis in an early stage, without deformity of the femoral epiphysis (stage 2A-B-C in Association for Research on Osseous Circulation (ARCO) classification, will undergo wide decompression of the necrotic area and reconstruction with homologous Lyophilized Bone Chips (LBC), growth factors from platelet concentrate Platelet-Rich Fibrin (PRF) and Concentrated Bone Marrow (CBM). 2. 52 patients with necrosis of similar features, without deformity of the femoral epiphysis, will undergo wide decompression of the necrotic area and reconstruction with Demineralized Bone Matrix (DBM), growth factors from Platelet-Rich-Fibrin (PRF) and Concentrated Bone Marrow (CBM). Patients will be evaluated post-surgery at 6 weeks, 3, 6, 12, and 24 months to assess joint damage evolution by ARCO classification, and hip function by clinical scores (Harris Hip Score (HHS), Western Ontario and McMaster Universities Arthritis Index (WOMAC) Score, and Visual Analogic Scale (VAS)).


Description:

Rationale. In vitro study and animal models have shown that Mesenchymal Stromal Cells (MSC) have the capacity to differentiate into osteoblastic lineage and that platelet reach fibrin can represent a clinical source of growth factors, able to accelerate the processes of tissue repair. This study intend to highlight how these factors, associated to two different preparations of bone allograft, may accelerate the formation of new host bone in patients with osteonecrosis of the femoral head that represents a common condition in clinical practice with an high socio-economic impact. Primary objective of the study is to delay or avoid total hip replacement in patients with early necrosis of the femoral head, using different methods of regenerative medicine. Secondary end points are described below: - To assess differences in outcome related to features, etiology and localization of the necrosis of the femoral head and to assess variation in post-operative return to daily activities. - To characterize the osteogenetic and angiogenic potential of marrow-derived Mesenchymal Stromal Cells (MSC) in patients with avascular necrosis of the femoral head, and to correlate these features with medical history and clinical outcome.


Recruitment information / eligibility

Status Completed
Enrollment 104
Est. completion date April 2018
Est. primary completion date April 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years to 60 Years
Eligibility Inclusion Criteria: - Patients with necrosis of the femoral head without fracture of the subchondral bone and without flattening of the head itself (according to ARCO classification 2A, B, C). - Age between 18 and 60 years. - Any etiology - Patients who had undergone a previous orthopaedic treatment for traumatology interventions Exclusion Criteria: - Patients under the age of 18 years or more than 60 years. - Patients not able to provide informed consent to treatment. - Patients suffering from apparent local infective processes. - Patients with active neoplastic diseases. - Patients with necrosis of the femoral head of advanced stages (ARCO 3A, B, C, 4). - Pregnant patients

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
core decompression
core decompression of necrotic area and graft with Platelet-Rich Fibrin (PRF) and Concentrated Bone Marrow (CBM)

Locations

Country Name City State
Italy 3rd Orthopaedic and Traumatologic Clinic, prevalently oncologic, Rizzoli Orthopaedic Institute Bologna
Italy S.S.D. Conservative Orthopaedic Surgery and Innovative Techniques, Rizzoli Orthopaedic Institute Bologna
Italy Orthopaedic and Traumatologic Department Policlinico di Modena Modena

Sponsors (1)

Lead Sponsor Collaborator
Istituto Ortopedico Rizzoli

Country where clinical trial is conducted

Italy, 

References & Publications (2)

Dallari D, Fini M, Stagni C, Torricelli P, Nicoli Aldini N, Giavaresi G, Cenni E, Baldini N, Cenacchi A, Bassi A, Giardino R, Fornasari PM, Giunti A. In vivo study on the healing of bone defects treated with bone marrow stromal cells, platelet-rich plasma, and freeze-dried bone allografts, alone and in combination. J Orthop Res. 2006 May;24(5):877-88. doi: 10.1002/jor.20112. — View Citation

Dallari D, Savarino L, Stagni C, Cenni E, Cenacchi A, Fornasari PM, Albisinni U, Rimondi E, Baldini N, Giunti A. Enhanced tibial osteotomy healing with use of bone grafts supplemented with platelet gel or platelet gel and bone marrow stromal cells. J Bone Joint Surg Am. 2007 Nov;89(11):2413-20. doi: 10.2106/JBJS.F.01026. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Reduction of the total necrotic area by Magnetic Resonance Imaging (MRI) baseline, and 12 months after surgery
Secondary Pain reduction by measurement of the Visual Analog Scale (VAS) baseline, and 6 weeks, 3, 6, 12, 24 months after surgery
Secondary Functional status evaluated by Harris Hip Score (HHS) and Western Ontario McMaster Universities Arthritis Index (WOMAC) baseline, and 6, 12, 24 months after surgery
Secondary maintenance of structural integrity of the joint by Radiography (RX) baseline, and 6 weeks, 3, 6, 12, 24 months after surgery
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