– See: Knee Joint Menu – Discussion: – articular cartilage injury and potential for repair; – rotational forces in direct trauma is the most common cause of injury to the articular cartilage; – in adults, the tidemark zone is the weak link between the overlying cartilage and subchondral bone and therefore shearing injuries most often … Read more
– See: Bone Tumor Menu – Discussion: – age at presentation: – most common primary epiphyseal tumor in children is chondroblastoma; – most commonly arises between ages 10 to 30; – not infrequently, the tumor will also arise … Read more
– Discussion: (see cartilage menu) – chondrocytes occupy lacunae distributed through the matrix; – chondrocytes are spherical in deep portion, but are flattened toward the periphery of cartilage; – peripheral lacuna may house a single chondrocyte; – deeper lacunae may contain two or more … Read more
– See: Skin Prep – Discussion: (chloroprep) – kills cells by disrupting their cell membranes and precipitating cell contents; – it has extremely low toxicity even when used on the intact skin of new borns; – in comparison to alcohols, antibacterial activity of chlorohexidine gluconate is not as rapid, but the drug remains … Read more
– See: – Chondral and Osteochondral Injuries of the Knee – Enchondral Ossification – osteochondral allografting for OCD injuries of the knee Healing of Articular Cartilage in Intra-Articular Fractures in Rabbits. Viability and apoptosis of human chondrocytes in osteochondral fragments following joint trauma The viability of articular cartilage … Read more
– See: – Chondral and Osteochondral Injuries of the Knee / Articular Cartilage: Injury and Potential for Repair: / Osteoarthritis – Enchondral Ossification – Discussion: – hyaline cartilage caps ends of bones that form synovial joints; – in other hyaline cartilage structures, surrounding perichondrium contains both capillaries for nutrition and the cells that become … Read more
– See: – Knee Joint Menu: – Chondral and Osteochondral Injuries of the Knee and Meniscal Tears – Discussion: – arthroscopic lavage alone may be of some benefit; – debridement has little value for long-standing or severe osteoarthritis of knee – where as, in the recent … Read more
– Discussion: – Total Shoulder Arthroplasty: (considerations: hemiarthroplasty vs TSA) – Reverse arthroplasty – Indications: – indicated for end stage DJD or RA shoulder involvement; – contra-indications to shoulder arthroplasty include combined rotator cuff / deltoid paralysis and recent joint infection; – in these rare circumstances, arthrodesis may be considered; – may occur as … Read more
Anterior Cruciate Ligament ‐ Anterolateral Ligament: Let’s Stick to the Facts! – Discussion: – anatomy of ACL – biomechanics of ACL – epidemiology_of_ACL_injuries – mechanism: ACL Tear – natural history of the ACL-deficient knee – partial ACL injury – pediatric ACL injuries – Evaluation … Read more
– Extra-articular Reconstruction: – these type of procedures are now no longer used as the primary reconstructive method for ACL tears; – some authors feel that the extra-articular reconstruction may have a role in augmenting the intra-articular reconstruction; – references: – Biomechanics of intra-articular and extra-articular reconstruction of the anterior cruciate ligament. – The effect … Read more