Bones
Calcaneus Capitate Clavicle Coracoid Process Femur Fibula Foot Hamate Humerus Lunate Navicular Olecranon Patella Pisiform Radius Sacrum Scaphoid Scapula Sesamoid Bones (Foot) Sesamoid Bones (Hand); Talus Tibia Trapezium Triquetrium Ulna
Femur
Bone Scan in Non Cemented THR
– See: – General Discussion of Bone Scans: – Bone Scans in THR: – Discussion: – evaluation of of porous coated prosthesis may require a different interpretation from cemented THR; – bone & fibrous tissue ingrowth into porous acetabular & intertrochanteric surfaces may cause findings unrelated to complications; – with loosening there is … Read more
Bone Scan: in THR
– See: Total Hip Replacement Menu: – General Discussion of Bone Scans: – Normal THR: – normal study (minimal reative bone formation) may be expected from months to a year after placement; – area of lesser trochanter to midshaft of prosthesis usually becomes normal in about … Read more
Bone Graft Menu
– Discussion: (see fracture healing and management of tibial bone defects) – autograft: bone graft harvest techniques – allografts – induced membrane technique – bone marrow aspirates: – in order to maximum the concentration of osteoblast precursors, no more than 2 cc should be … Read more
Blounts Disease
– See: – adolescent blounts: – growth plate anatomy – Infantile Blounts Disease: (pathologic tibia vara) – differential diagnosis and examination (see genu varum) – most common form of disease; – growth disorder of medial portion of proximal tibial physis; – … Read more
Blood Supply to Femoral Head & Neck
– See: – Anastomosis of lower limb arteries – Arterial supply of the femur – AVN of femoral head; – AVN following femoral neck fracture – Anatomy: – extracapsular arterieal ring at the base of the femoral neck; … Read more
BKA Prosthesis
– See: Prosthetic Feet: – PTB sockets: – provide some weight bearing support in the area of patella tendon and medial tibial flare; – BKA Suspension: – important design considerations for both sockets include – support (pressure distribution) – control (based … Read more
Biomechanics of ACL
– See: Biomechanics Menu: – Anatomy of the ACL: – Biomechanics: – ultimate tensile load: 2160 ± 157 N – stiffness: 242 ± 28 N/mm; – passive knee extension produces forces along ACL only during last 10 degrees of knee extension; – hyper-extension: … Read more
Biomechanics of the Patello-Femoral Joint
– See: Role of Knee Joint During Gait: – Discussion: – patella increases the mechanical advantage of extensor muscles by transmitting forces across knee at greater distance (moment) from axis of rotation; – increases functional lever arm of quads as well as changing direction of pull of quad mechanism; … Read more
Biceps Femoris
– Anatomy: – origin: – long head: ischial tuberosity and the sacrotuberous ligament; – short head: lateral lip of linea aspera, lateral supracondyle of femur and lateral intermuscular septum; – insertion: – lateral sides of the head of the … Read more