– 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
– 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
– 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 … Read more
– See: Nerve Injury – Discussion: – always consider an occult compartment syndrome before a neurpraxia; – median nerve: – most common neural injury is to anterior-interosseous branch; – in type III frx, upto 50% of pts may show median … Read more
– Discussion: – shoulder is bounded posteriorly by teres minor & infraspinatus & partialy by long head of triceps; – it is bounded laterally by deltoid, & superiorly it is bounded by acromion; – anteriorly & inferiorly, shoulder is bounded by pect major & biceps, however, these do not … Read more
– 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
– 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: – 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 … Read more
– Discussion of Treatment of Recent Dislocations and Fracture-Dislocations of the Shoulder – maintains that biceps and subscapularis muscle offers the chief resistance to reduction; – in anatomic position, w/ humerus at side, direction of various muscles around shoulder girdle seems to completely haphazard; – constancy of this effect must be attributed … Read more
– Discussion: – growth-remaining method – straight-line graph method – arithmetic method is the simplest, but least accurate. – proximal femoral physis:: – 4 mm / yr (1/8 in/yr) – distal femoral physis: – … Read more