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The purpose of this study is to investigate the safety and feasibility of implanting an engineered cartilage graft obtained by culturing expanded autologous nasal chondrocytes within a collagen type I/III membrane into the cartilage defect on the femoral condyle and/or trochlea of the knee after a traumatic injury.
Articular cartilage injuries are a prime target for regenerative techniques, since spontaneous healing is poor and untreated defects predispose to osteoarthritis. Common current strategies such as arthroscopic debridement, microfracture, autologous osteochondral grafting, use of allografts and autologous chondrocytes implantation (ACI) still have drawbacks such as long and complex rehabilitation times, technically challenging operation techniques, defect-size limitations, donor-site morbidity, limited graft material and high costs. Furthermore many techniques show unsatisfactory long term results due to inferior quality of repair tissue as compared to native cartilage or have yet to prove the cost versus benefit. These drawbacks could be overcome by using a tissue engineered nasal cartilage graft, thereby reducing donor site morbidity without introducing additional risk of complication or technically challenging techniques.
This study is a phase I, prospective, uncontrolled, investigator initiated clinical trial involving 25 patients, with the objective of demonstrating safety and feasibility in the use of engineered nasal cartilage grafts for repair of articular cartilage. The specific surgical target of the trial is the repair of one or two full-thickness cartilage defects from 2 cm2 to 8 cm2 (per lesion, not exceeding a total of 8 cm2 for all lesions) due to traumatic injury on the femoral condyle and/or trochlea of the knee.
Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Tissue engineered cartilage graft
University Hospital Basel
University Hospital, Basel, Switzerland
Published on BioPortfolio: 2015-03-11T02:08:23-0400
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A non-vascular form of connective tissue composed of CHONDROCYTES embedded in a matrix that includes CHONDROITIN SULFATE and various types of FIBRILLAR COLLAGEN. There are three major types: HYALINE CARTILAGE; FIBROCARTILAGE; and ELASTIC CARTILAGE.
A type of CARTILAGE characterized by a homogenous amorphous matrix containing predominately TYPE II COLLAGEN and ground substance. Hyaline cartilage is found in ARTICULAR CARTILAGE; LARYNGEAL CARTILAGES; and the NASAL SEPTUM.
Pathological processes involving the chondral tissue (CARTILAGE).
A type of CARTILAGE whose matrix contains ELASTIC FIBERS and elastic lamellae, in addition to the normal components of HYALINE CARTILAGE matrix. Elastic cartilage is found in the EXTERNAL EAR; EUSTACHIAN TUBE; EPIGLOTTIS; and LARYNX.
A benign neoplasm derived from mesodermal cells that form cartilage. It may remain within the substance of a cartilage or bone (true chondroma or enchondroma) or may develop on the surface of a cartilage (ecchondroma or ecchondrosis). (Dorland, 27th ed; Stedman, 25th ed)
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Arthritis is by definition the inflammation of one or more joints, characterized by swelling, pain, warmth, redness and diminished range of joint movement (Oxford Medical Dictionary). There are many different types; Noninflammatory; Osteoarthritis, N...