– Graft Entry Point: – because the slope of the intercondylar notch will vary from 26 to 44 deg, the tibial tunnel should be accordingly positioned between the anterior third and the midpoint of the saggital length of the tibia; – referenced off the PCL: – this … Read more
(see also: Achilles Tendon Rupture) Discussion while there are many causes of posterior ankle pain, there are two distinct conditions which may affect the Achilles tendon: tendinitis and tendinosis, each having a distinct prognosis; Tendinitis / Tendinosis peritendinous inflammation which does not generally progress to degenerative tendinosis (nor rupture); in other situations, there will … Read more
Myopathic Disorders » Muscle Fiber Types » Biochemistry of Skeletal Muscle Contraction Muscle Contraction Depolarization Metabolic Sequence Calcium Regulation of Muscle Contraction Histology of Skeletal Muscle Chemistry of Skeletal Muscle Muscle Cramps » Extra cellular Matrix composed of many different molecular components, consisting mostly of collagens, proteoglycans, and glycosaminoglycans Matrix metalloproteinases enzymes that digest collagen … Read more
Editor: Scott D. Boden, MD Associate Editors: Robert Hart, MD Keith Luk, MD Robert Gunzburg, MD Section Editors: Chris Ames, MD Howard An, MD Ulrich Berleman, MD Helena Brisby, MD Elaine Buchanan, MD Helton L.A. Delfino, MD Ashish Diwan, PhD Eric Hurwitz, MD Norio Kawahara, MD Michael Kelly, MD Hubert Labelle, MD Teija Lund, MD … Read more
most common accessory bones os trigonum os tibiale externum (accessory navicular) os peroneum (lateral aspect of cuboid) os vesalianum (base of 5th metatarsal) less common accessory bones os supratalare (antero-supero aspect of talus) os supranaviculare (superior aspect of navicular – seen on lateral) processus uncinatus (at intersection of navicula, 2nd and 3rd cuniform) os intercuneiforme … Read more
(see also: AKA Prosthesis, Amputations in the Diabetic Patient Discussion average AK amputee walks 43% slower and expends 89% more kcal/min than the normal person; if proximal circulation is adequate, a longer anterior muscle flap may be left and the combination myodesis- myoplasty technique is used; ability to ambulate with a prosthesis depends heavily … Read more
Discussion it is important that knee joint is extended throughout stance phase; this means that the components are assembled so that a straight line extended fromthe "trochanter" will pass anterior to the knee and through the ankle; friction is adjusted to help control the amount of knee flexion and to help decelerate the shank; mechanical … Read more
Development of the design of the WRIGHTLOCK Spinal Fixation System began over eight years ago in conjunction with Dr. Ben Allen, Jr., Chief of Staff at the Shriners Hospital for Crippled Children in Greenville, SC. Its design was based on the need for a spinal system that was both low profile and high strength for … Read more
Discussion (see also: rotator cuff) abduction of shoulder is a smooth, integrated motion which has been termed scapulohumeral rhythm by Codman; disruption of this smooth motion is important since asymmetrical movement usually indicates a chronic pathological disorder of the shoulder; there is a 2:1 ratio of movement in GHJ & scapulothoracic joints; clavicle also plays … Read more
Anatomy extensor tunnel I: origin: small facet of ulnar side of the radius near its middle; on lateral side of dorsal surface on body of the ulna just below the insertion of anconeus & interosseous membrane; tunnel: travels thru the first extensor compartment; insertion: most often this tendon inserts onto the APB muscle or it … Read more