The Hip - book

Radiographic Changes in Rickets and Osteomalacia

– Discussion:     – anatomical and pathological changes that occur with rickets or osteomalacia differ principallyaccording to the age of pt & severity of the              disorder.     – children:            – physeal cupping / widening            – bowing of long bones;       … Read more

Puncture of Shoulder Joint & Subacromial Bursa

– Puncture of Shoulder Joint:     – posterior approach gives easy access to glenohumeral joint & avoids risk of damaging brachial plexus or cephalic vein;     – pt should be seated & entire shoulder, both anterior & posterior, should be prepped and draped;     – palpate most lateral edge of the acromion … Read more

Proximal Humeral Physeal Injuries

– See: – Humeral Shaft Fractures in Children – Throwing Shoulder – Discussion: – most of these injuries are either Salter I or II fractures; – frx separations of proximal humeral epiphysis occur most often between ages of 11 and 15 years; – 80% of longitudinal growth of humerus occurs in proximal physis; – large … Read more

Proximal Biceps Tendon Rupture

– See:      – Biceps Tendonitis      – SLAP Lesions – Discussion:     – this tendon may have some role as a depressor of humeral head, preventing superior migration of humeral head;     – approx 50% of all ruptures occur thru the tendon of the long head;     – rupture is … Read more

Proximal Humeral Fracture

– See: Proximal Humeral Physeal Injuries – Discussion: – classification of proximal humeral fractures: – anatomic neck fracture: – one part fracture – two part fractures – two part surgical neck fracture – two part tuberosity fractures: – lesser tuberosity frx; – greater tuberosity frx; – three part fractures – four part fracture: – fracture … Read more

Proprionobacter acnes

Discussion:    – see anaerobic joint infections    – slow growing, typically aerotolerant anaerobic gram positive bacterium;    – found in skin pores and the gut.    – may colonize the axilla (esp in males)    – positive cultures may be seen patients having revision shoulder arthroplasty performed for pain, stiffness, and component loosening    – … Read more

Proliferative Myositis

– Discussion:     – benign condition usually occuring in adults, but sometimes in children;     – may present as a rapidly growing mass, in the shoulder, thigh, and chest; – Histology:     – should not show mitotic figures; – Diff Dx:     – rhabdomyosarcoma     – myositis ossificans – Treatment: … Read more