BACKGROUND Fresh-stored osteochondral allografts have been used successfully to resurface large chondral and osteochondral defects of the knee. However, there are limited data available for the return to athletic activity. PURPOSE To review the rate of return to athletic activity after osteochondral allograft transplantation in the knee and to identify any potential risk factors for not retur...

The purpose of this Technical Note is to introduce a surgical technique using a fluid pressure pump, mid-lateral portal, and radiofrequency ablation for visualization, assessment, and subsequent, accurate/adequate removal of patellofemoral articular lesions for the treatment of patellofemoral compartment pathology. With the patient in the supine position, and an inflated thigh tourniquet, stand...

Background: Magnetic resonance arthrogram (MRA) has emerged as a supplement to non-contrast magnetic imaging (MRI), especially in the identification of meniscal and chondral pathologies. It increased diagnostic efficacy MRI evaluation knee Aims Objectives: The present study was carried out evaluate role MRA diagnosis various pathologies correlate its findings with arthroscopy. Materials Methods...

This study tested the association between periligamentous vascularization of the anterior cruciate ligament (ACL) and the presence of chondral knee lesions via retrospective analysis of prospectively collected data from 702 consecutive knee arthroscopic procedures. In each case, the ACL periligamentous envelope was documented as follows: (1) vascular, where the ACL was covered with blood vessel...

An adult, Japanese domestic cat presented with bilateral swelling, distortion, and erythema of ears and deformation of the limbs. Biopsy of the pinnae confirmed auricular chondritis. These lesions and the cat's general condition subsequently deteriorated, and the cat died. At necropsy, chondral changes were present in the pinnae, costae, larynx, trachea, and limbs. Histopathologically, these ch...

The authors report an unusual case of a chondral lesion in the knee joint in an adolescent. The lesion produced a clunk in the knee joint on flexion. A low-resolution MRI scan failed to image the lesion. Arthroscopy revealed a unique shape of chondral flap from the weight bearing surface of the lateral femoral condyle, which resembled a meniscal bucket handle tear. Chondrectomy resolved all the...

BACKGROUND The coverage of the atelocollagen membrane at the chondral defect after subchondral drilling might improve the beneficial effects for cartilage repair because of the prevention of scattering and accumulation of cells and growth factors from bone marrow within the chondral defect. On the other hand, it might block cells and factors derived from the synovium or cause high pressure in t...

Tissue engineering holds great promise for injury repair and replacement of defective body parts. While a number of techniques exist for creating living biological constructs in vitro, none have been demonstrated for in situ repair. Using novel geometric feedback-based approaches and through development of appropriate printing-material combinations, we demonstrate the in situ repair of both cho...

OBJECTIVE To compare the outcome of matrix-induced autologous chondrocyte implantation (MACI) and bone marrow aspirate concentrate (BMAC)-derived multipotent stem cells (MSCs) implantation in patellofemoral chondral lesions, using the same HYAFF11 scaffold. METHODS From January 2005 to December 2010, 37 patients with patellofemoral chondral lesions were prospectively followed up, for a minimu...

BACKGROUND Full-thickness chondral defects and early osteoarthritis continue to present major challenges for the patient and the orthopaedic surgeon as a result of the limited healing potential of articular cartilage. The use of bioactive growth factors is under consideration as a potential therapy to enhance healing of chondral injuries and modify the arthritic disease process. QUESTIONS/PUR...