The Hip - book

Congenital Kyphosis

– Discussion:     – deformity is characterized by severe angular deformity with a prominent gibbus at the apex of the curve;     – etiology involves either failure of segmentation or defect in formation of vertebral body elements;     – defect of formation:           – failure of formation of … Read more

Congenital Myopathies

– See: myopathic disorders: – Discussion:  – congenital myopathies are a group of different conditions, w/ variable genetic patterns of inheritance, that lead to muscle weakness in infancy        and early childhood;  – include central core disease, nemaline myopathy, myotubular myopathy, congenital fiber type disproportion, and centronuclear myopathy;  – children w/ congenital myopathies present as … Read more

Congenital Scoliosis: Epiphysiodesis

– Indications:     – for patients with hemivertebrae only and no kyphosis;     – age > 5 years (although some surgeons will perform this procedure on patients as young as 2.5 yrs);     – short curvature of less than 50-70 degrees involving <  6 or less vertebrae; – Technique:     – … Read more

Condylar Buttress Plate

– Discription:     – broad cloverleaf shaped plate which is designed to butress comminuted supracondylar fractures;            – this plate may be especially indicated for comminuted distal fractures w/ a coronal shear frx;       – plate is designed to contour to the lateral aspect of the distal femoral … Read more

Condylar Fracture

– Discussion:     – this fracture most commonly splits off a single condyle, resulting in disruption of the joint and angular deformity of the finger;     – common atheletic injury;     – best diagnosed with an oblique x-ray;     – can be mistreated as sprain which results in finger angulation and … Read more

Congenital Dislocation of Radial Head

– Discussion:     – capitellum is hypoplastic and the radial head is ovoid or dome-shaped;     – ulna may be short in relation to the radius;     – in about 1/3 of patients there will be an additional anomaly of the upper extremity, and in about 1/3, there will be an anomaly in … Read more

Compression Arthrodesis

– Charnley Method: – compression arthrodesis as accomplished by Charnley shows little consideration of biomechanical principles; – he used one talar pin & one tibial pin w/ compression between them; – pin is placed anterior in the talus so posterior pull of the Achilles tendon will keep the arthrodesis compressed; – this provides stability in only … Read more