The Hip book

Shoulder: Internal Impingement Syndrome

Discussion:      – the hyperextension phase of throwing may be the most important component of internal impingement; – in the late cocking position (abduction, external rotation, extension) may cause the postero-superior edge of the glenoid labrum to become caught between the humeral head and rotator cuff (surface of the infraspinatus and posterior fibers of supraspinatus tendon); –  posterior glenoid … Read more

THR: Posterolateral Approach – Discussion

– Discussion: – Anterior Capsule: – a curved retractor is passed anterior to the anteior capsule and superior to psoas major tendon; – retract femur anteriorly w/ a bone hook to keep capsule under tension; – if sig flexion contracture is present before hip is dislocated, note tight structures capsule & insertions of rectus femoris & sartorius) & incise them … Read more

Posterior Shoulder Dislocation / Instability

– See: Fracture Dislocation / Anterior Instability – Discussion: – posterior dislocation is rare & should raise possibility of seizure as cause, other causes include an electric shock or ECT without muscle relaxants; – mechanism: – axial loading of the adducted, internally rotated arm; – because the internal rotator muscles are approx twice as powerful as the exernal rotator muscles, a sudden … Read more

Legg Calve Perthes Disease

– Discussion: – self limiting hip disorder caused by a varying degree of ischemia and subsequent necrosis of the femoral head; – avascular necrosis of nucleus of proximal femoral epiphysis, abnormal growth of the physis, and eventual remodeling of regenerated  bone are the key features of this disorder; – loss of blood supply to the … Read more

Wheeless’ Textbook of Orthopaedics – Commercial Web Sites

– Trauma: Avanta Stratec Rimlon Acumed AO/ASIF Corin Hand Biomechanics Hand Innovations Howmedica Johnson & Johnson Orthopaedics Norian Skeletal Repair system Smith & Nephew Taylor Spatial Frame Fixator Wright Medical Tornier Zimmer – Joints: Link America Inc Avanta Orthopaedics Biomet BioPro Implants DePuy Orthopaedic Encore Howmedica Johnson & Johnson Orthopaedics Link America Inc Smith & … Read more

Kienbock’s disease: Lunatomalacia

– Discussion: – disease which involves collapse of the lunate due to vascular insufficiency and avascular necrosis; – first described in 1910 by Kienbock (republished article); – disease occurs most often in young adults between 15 and 40 years; – is usually unilateral; – etiology: – vascular impairment; – single or repetitive microfractures that result in … Read more

Transverse fractures – K Wire Insertion

Untitled Document Fractures Joints Muscles Nerves Trauma Medications Medical Topics Lab Tests Ortho Menu: A B C D E F G H I J K L M N O P Q R S T U V W X Y   Important Safety Information LOVENOX® (enoxaparin sodium injection) cannot be used interchangeably with other low-molecular-weight heparins … Read more

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Untitled Document Duke Orthopaedics presents Wheeless’ Textbook of Orthopaedics Site Index A – Z Search Site by Word Home Contact Us My Account arthritis arthroscopic surgery cranio facial DVT elbow femur foot / Ankle hand hip humerus knee Lab Tests Medical Topics medications muscles / Tendons nerves orthobiologics pelvic radius / Ulna shoulder spine tibia … Read more

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Untitled Document Duke Orthopaedics presents Wheeless’ Textbook of Orthopaedics Site Index A – Z Search Site by Word Updates Home Contact Us My Account arthritis arthroscopic surgery cranio facial DVT elbow femur foot/Ankle hand hip humerus knee   medications muscles/tendons nerves orthobiologics pelvic radius/Ulna shoulder spine tibia/Fibula   trauma/Fractures Wrist   Total Hip Arthroplasty: PreOp … Read more


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