Patient-specific Instruments for Total Knee Arthroplasty
Paul F. Lachiewicz J Am Acad Orthop Surg September 2013 vol. 21 no. 9 Abstract The use of patient-specific instruments for total knee arthroplasty shifts computer navigation for bone landmark registration and implant positioning from the intraoperative to the preoperative setting. Each system requires preoperative MRI or CT, with specifications determined by the instrument manufacturer. […]
Cysts About the Knee: Evaluation and Management
Drew Stein J Am Acad Orthop Surg. Vol 21 Nº 8 August 2013 Popliteal (Baker) cysts, meniscal cysts, proximal tibiofibular joint cysts, and cruciate ligament ganglion cysts are cystic masses commonly found about the knee. Popliteal cysts form when a bursa swells with synovial fluid, with or without a clear inciting etiology. Presentation ranges from […]
Anterior Cruciate Ligament Injuries in the Skeletally Immature Athlete: Diagnosis and Management
Jeremy S. Frank J Am Acad Orthop Surg February 2013 ; 21 Abstract Intrasubstance anterior cruciate ligament (ACL) injuries in children and adolescents were once considered rare occurrences, with tibial eminence avulsion fractures generally regarded as the pediatric ACL injury equivalent. However, with increased single-sport focus, less free play, and year-round training at younger ages, […]
Anterior Cruciate Ligament Rupture: Differences Between Males and Females
Karen M. Sutton Abstract The rate of anterior cruciate ligament (ACL) rupture is three times higher in female athletes than in male athletes. Intrinsic factors such as increased quadriceps angle and increased posterior tibial slope may predispose girls and women to ACL injury. Compared with males, females have smaller notch widths and smaller ACL cross-sectional […]
Graft Tensioning During Knee Ligament Reconstruction: Principles and Practice
J Am Acad Orthop Surg. October 2012;20(10) Seth L. Sherman Abstract Failure to correctly tension grafts may overconstrain or underconstrain the knee, potentially predisposing the patient to deteriorating clinical and/or radiographic results over time. Knee ligament reconstruction requires a fundamental understanding of native anatomy, ligament biomechanics, and principles of graft tensioning. A successful strategy for […]
Surgical Management of Hallux Rigidus
J Am Acad Orthop Surg June 2012 vol. 20 no. 6 Jonathan Thorndike Deland Abstract Hallux rigidus is the most common degenerative joint pathology of the foot. Untreated, it may result in notable limitations in gait, activity level, and daily function. Positive outcomes can be achieved with nonsurgical management; surgery is recommended for the sufficiently […]
Arthroscopic Releases for Arthrofibrosis of the Knee
J Am Acad Orthop Surg November 2011 Michael R. Chen, Abstract Intra-articular inflammation or fibrosis may lead to decreased soft-tissue and capsular compliance, which may result in pain or loss of motion within the knee. Etiology of intra-articular fibrosis may include isolated anterior interval scarring and posterior capsular contracture, as well as fibrosis that involves […]
The Role of High Tibial Osteotomy in the Varus Knee
J Am Acad Orthop Surg October 2011 Roberto Rossi, MD, Davide E. Bonasia, MD and Annunziato Amendola, MD Abstract High tibial osteotomy (HTO) is a widely performed procedure, and good results can be achieved with appropriate patient selection and precise surgical technique. Clinical indications include varus alignment of the knee associated with medial compartment arthrosis, […]
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, […]
Autografts Commonly Used in Anterior Cruciate Ligament Reconstruction
NULL Walter R. Shelton, MD and Bryan C. Fagan, MD Anterior cruciate ligament reconstruction is among the most common orthopaedic procedures in the United States, with >200,000 performed annually. Much has been published regarding the use of autograft versus allograft. Bonepatellar tendonbone is the most frequently used autograft, but hamstring and quadriceps tendon grafts are […]
