Ortho Oracle - orthopaedic operative atlas

Types of Hemiarthroplasty Stems

                    – See: – Austin Moore Prosthesis:      – only true calcar support prosthesis is the old Moore implant, whose stem was too small to provide canal fill in most cases;      – designed for patients w/ 1/2 to 3/4 inches of remaining femoral … Read more

Type VI Plateau Frx

    – Discussion:  Tibial Plateau Frx Menu     – bicondylar frx w/ distal oblique shaft frx;     – these frx have bicondylar frx along w/ dissociation of diaphysis from metaphysis;     – if the medial plateau fragment is intact, this frx can be treated with placement of a lateral plate and             and Ex … Read more

Types of Anterior Dislocation

– See: Multidirectional Instability:  – Radiographic Subtypes:     – Subcoracoid          – most common type of anterior dislocation          – head of humerus is displaced anteriorly w/ respect to glenoid, & is inferior to coracoid process;          – greater tuberosity is fixed on anterior glenoid rim;          – neck … Read more

Type III Supracondylar Frx

– Discussion:     – posterior cortex is disrupted w/ no cortical contact;     – distal fragment is displaced posteriorly and proximally (by pull of triceps);     – w/ medial displacement, the medial periosteal hinge is intact;     – w/ lateral displacement, the lateral periosteal hinge is intact; – Physical Exam:   … Read more

Type-IV Intertrochanteric Fractures

  – See: Unstable Intertrochanteric Fractures – Discussion:     – consist of an intertrochanteric frx w/ a subtroch component;     – constitutes 15% of intertroch frx; – Treatment Options:     – sliding hip-screw or 2nd-generation locking nail may be used in rx of intertroch-subtroch frx that have femoral shaft extension;     … Read more

Type III: Pilon Frx

– Discussion:     – severe articular comminution and articular impaction frx;     – reduce fibula then perform plate & lag screw fixation;     – restores length of fractured distal tibia:     – reduce articular surface     – carried out & maintained by temporarily stabilizing it with K wires;     … Read more

Type IV (Medial) Tibial Plateau Fractures

– See:         – Tibial Plateau Frx Menu:    Bicondylar Fractures and Type V Frx, Type IV Fractures, Total Depression Fracture – Discussion:     – frx of medial tibial plateau (see total depression frx):     – carries worst prognosis of all tibial plateau fractures;     – 2 subsets of injury:   … Read more

Type V

– Discussion:     – type V growth plate injuries are due to severe axial loading;     – some or all of the physis is so severely compressed that growth potential is destroyed;     – angulation and limb length inequality may be long term complications

Type III Tibial Plateau Frx

    – See: Tibial Plateau Frx Menu, Local Compression Frx – Discussion:     – involves central or peripheral depression of frx of lateral plateau w/o associated lateral wedge fracture;     – it usually occurs from minimal impact on weak osteoporotic bone;     – commonly affects older age groups (55-60 yrs) w/ marked osteoporosis; … Read more

Type III Olecranon Frx

– Discussion:         – frx is displaced & forearm is unstable in relation to humerus;         – this injury is really a fracture-dislocation;         – Avulsion Fracture         – Comminuted Fractures         – Distal Olecranon Fracture:         … Read more