– See: proximal femoral shaft fractures / – Discussion: – definition: – between lesser trochanter and 5 cm distal, even as far as center of isthmus of the femoral shaft; – technically starts below the lesser tuberosity; – medial and posteromedial cortex is a site of high compressive forces, while lateral cortex experiences high tensile stresses (forces … Read more
– Precautions: – because succinylcholine causes an increase in intra gastric pressure that may lead to gastric aspiration, crycothyroid pressure should be applied; – also causes increase in intraocular pressure and in relatively contra- indicated with injuries in an open globe; – increases intracranial pressure; – Precautions w/ Spinal Cord Injury: – w/ possible cervical … Read more
– See: subtalar arthrodesis – Primary Fusion: – indicated for fractures w/ more than 3 parts; – restores length of gastrocnemius-soleus complex – corrects flat foot – relieves the narrow peroneal space; – in the presentation by Infante AF, et al (15th Annual Meeting of the Orthopaedic Trauma Association 1999), the authors advocate immediate subtalar … Read more
– Discussion: – arises from ascending cervical arteries – epiphyseal arterial branches form at subsynovial intra articular ring, and go on to enter the head of the femur; – disruption of this arterial ring occurs from high femoral neck frx; – these pts … Read more
– See: – Ulnar Nerve: – Anatomy & Sites of Compression of Cubital Tunnel: – Surgical Considerations: – transposition can entail subQ or submuscular transposition with excision of medial intermuscular septum, and release of arcade of Struthers; – in the presence of H.O. the nerve should be … Read more
– Discussion – Examination of Patellofemoral Joint – exam considerations: – generalized hyperlaxity – femoral anteversion – vastus medialis obliquus atrophy – genu valgum – external tibial torsion – patellar dysplasia – trochlear dysplasia – patella alta – pes planus – Radiographic Features: (see: radiographic evaluation of the knee) – lateral view – look for … Read more
– Discussion: – subscapular artery is usually largest branch of Axillary Artery and arises from the 3rd part of the artery; – branches of subscapular artery enter costal surface of Subscapularis muscle, & frequently one or more small twigs arising directly from Axillary Artery do likewise; – from its origin it … Read more
– See: – arteries of the upper limb – subclavian vein – thoracic outlet syndrome; – Discussion: – injuries are rare because of overlying bony skeleton; – right subclavian artery originates from innominate artery & passes into neck behind the right SC … Read more
– See: subclavian artery and internal jugular approach – Anatomy: – subclavian vein, which in the adult is approximately 3-4 cm long and 1-2 cm in diameter, begins as a continuation of the axillary vein at the lateral border of the first rib, crosses over the first rib, and passes in front of the … Read more
– See: – Sub Talar Dislocation – Subtalar Fusion – Transverse tarsal joint – Triple Arthrodesis – Discussion: – anatomy: – axis of rotation: – axis of subtalar joint is approx 42 deg upward from the horizontal in saggital plane & 16 to 23 deg medial to midline of foot in transverse plane; – upward … Read more