The Effect of Drill Bit, Pin, and Wire Tip Design on Drilling
NULL Bryce M. Fincham, Todd Jaeblon J Am Acad Orthop Surg September 2011 ; 19: Abstract Successful penetration of bone is dependent on several factors, including bone quality, drill bit and pin design, and drilling technique. Wires are also used in bone drilling, and the tip configuration can affect the efficiency of bone penetration. Incorrect […]
Management of Aseptic Tibial Nonunion
NULL David J. Hak. J Am Acad Orthop Surg September 2011 ; 19: Abstract Tibial nonunion remains a significant clinical challenge despite advances in surgical management. New techniques to help manage tibial nonunion include extracorporeal shock wave therapy and percutaneous application of bone marrow aspirate. Management strategies vary based on the type of nonunion: aseptic […]
Intervertebral Disk Degeneration and Emerging Biologic Treatments
Christopher K. Kepler, D. Greg Anderson, Chadi Tannoury, Ravi K. Ponnappan J Am Acad Orthop Surg September 2011 ; 19: Abstract Although understanding of the biologic basis of intervertebral disk (IVD) degeneration is rapidly advancing, the unique IVD environment presents challenges to the development and delivery of biologic treatments. Acceleration of cellular senescence and apoptosis […]
Perilunate Dislocation and Perilunate Fracture-dislocation
Spencer J. Stanbury, John C. Elfar. J Am Acad Orthop Surg September 2011 ; 19: Abstract Perilunate dislocations and perilunate fracture-dislocations usually result from high-energy traumatic injuries to the wrist and are associated with a characteristic spectrum of bony and ligamentous damage. Radiographic evaluation of the wrist reveals loss of normal radiocarpal and intercarpal colinearity […]
Adhesive Capsulitis of the Shoulder
Andrew S. Neviaser, Robert J. Neviaser J Am Acad Orthop Surg September 2011 ; 19: Abstract Adhesive capsulitis is characterized by painful, gradual loss of active and passive shoulder motion resulting from fibrosis and contracture of the joint capsule. Other shoulder pathology can produce a similar clinical picture, however, and must be considered. Management is […]
Classic Bladder Exstrophy: Orthopaedic Surgical Considerations
Neil C. Vining , Kit M. Song , Richard W. Grady J Am Acad Orthop Surg September 2011 ; 19: Abstract Classic bladder exstrophy is an embryologic malformation that results in complex deficiency of the anterior midline, with urogenital and skeletal manifestations. Urogenital reconstruction is a challenging procedure that can be facilitated by closure of […]
All-polyethylene Tibial Components in Modern Total Knee Arthroplasty
James A. Browne, Susan E. Gall Sims, Steven A. Giuseffi, Robert T. Trousdale J Am Acad Orthop Surg September 2011 ; 19: Abstract Most total knee arthroplasty prostheses have modular tibial components with metal-backed tibial baseplates. Biomechanical studies have demonstrated mechanical advantages to a metal-backed tibial component in terms of tibial load transfer. In addition, […]
Advances in Magnetic Resonance Imaging of Articular Cartilage
NULL J Am Acad Orthop Surg, Vol 19, No 7, July 2011 Laith M. Jazrawi, MD, Michael J. Alaia, MD, Gregory Chang, MD, Erin F. FitzGerald, MD and Michael P. Recht, MD The pathology, assessment, and management of articular cartilage lesions of the hip and knee have been the subject of considerable attention in the […]
Complications in Reverse Total Shoulder Arthroplasty
NULL J Am Acad Orthop Surg, Vol 19, No 7, July 2011 Emilie Cheung, MD, Matthew Willis, MD, Matthew Walker, MD, Rachel Clark and Mark A. Frankle, MD Reverse total shoulder arthroplasty was initially used to manage complex shoulder problems. Indications have been expanded to include rotator cuff arthropathy, massive rotator cuff tear, failed shoulder […]
Surgical Exposures of the Radius and Ulna
NULL J Am Acad Orthop Surg, Vol 19, No 7, July 2011 Louis W. Catalano, III, MD, Dan A. Zlotolow, MD, Phillip B. Hitchcock, Suparna N. Shah, MBA and O. Alton Barron, MD The forearm contains many muscles, nerves, and vascular structures that change position on forearm rotation. Exposure of the radial shaft is best […]