The Hip - book

Oblique Fractures

– Avulsion Fracture – Comminuted Fractures – Distal Olecranon Fracture: – Fracture Dislocations – Oblique Fractures – Surgical Approach: – Transverse Fractures – Discussion:     – results from indirect forces (hyperextension)     – frx begins at midpoint of trochlear notch and extends distally to enter semilunar notch;     – amount of frx … Read more

Nutrient Artery

– See:       – Epiphyseal Artery       – Metaphyseal Artery       – Periosteal Artery – Discussion:      – nutrient artery enters into the diaphysis of long bones through an oblique canal;      – direction of canal is determined by relative amount of growth that has occurred at … Read more

Non Union of Distal Humeral Frx

– Discussion:     – nonunion of fractures of the distal humerus usually occurs when stable internal fixation has not been achieved  Open reduction and internal fixation of delayed union and nonunion of the distal humerus.  Reconstruction after malunion and nonunion of intra-articular fractures of the distal humerus. Methods and results in 13 adults. Non-union of fractures of … Read more

Non Union of Humeral Fractures

– Discussion: – Non Union – General Discussion: – definition of fracture union: defined as bridging callus (ideally both cortices) on 2 orthogonal views with the disappearance of fracture lines – care must be taken not to mistake a pseudoarthrosis for a simple hypertrophic nonunion; – treatment of the pseudoarthrosis requires complete resection of the synovial tissue, and … Read more

Multiple Cartilaginous Exostoses (Hereditary Exostosis)

– See: Bone Tumor Menu – Discussion:     – an osteochondroma that results from a dysplasia of peripheral growth plate;            – as its name implies, multiple hereditary exostosis is an inherited condition which produces multiple exostoses;     – occurs in 1 out of 50,000 people;     – … Read more

MRI Imaging of the Shoulder:

– Discussion:     – used to assess impingement syndromes (coronal oblique views) and less often glenoid pathology (transaxial views);     – it accurately identifes full-thickness rotator cuff tears;           – defects show up with high signal intensity traversing supraspinatus tendon on T2 images;           – … Read more

Mosaicplasty and Cartilage Transplants for Chondral Injuries of the Knee

– Mosaicplasty: – refers to the technique of harvesting small circular (4-8 mm) autogenous grafts from the knee from non wt bearing regions of the knee, and transplanting the grafts in a mosaic pattern until the osteochondral defect is filled; – typically the grafts are harvested from the periphery of the supero-lateral trochlea, but often, the … Read more