Implant choices, technique, and results in revision acetabular surgery: a reviewThomas J Blumenfeld
Department of Orthopaedic Surgery, University of California at Davis, Sutter General Hospital, Sacramento, California, USA
Hip Int 22:235-47. 2012
..This paper will detail the necessary pre-operative evaluation, the intra-operative details, and the reported results of these acetabular revisions...
Surgical technique: a cup-in-cup technique to restore offset in severe protrusio acetabular defectsThomas J Blumenfeld
University of California at Davis and Sutter Medical Center, Sacramento, 1020 29th Street, Suite 450, Sacramento, CA 95816, USA
Clin Orthop Relat Res 470:435-41. 2012
..Preoperative planning can indicate when these techniques may not restore vertical and horizontal offset. Failure to restore offset can lead to impingement, leg length inequality, abductor weakness, and dislocation...
In vivo assessment of total hip femoral head separation from the acetabular cup during 4 common daily activitiesThomas J Blumenfeld
Sutter General Hospital, University of California Davis, USA
Orthopedics 34:127. 2011
..We conclude from this study that the evaluation of gait alone may not be sufficient to accurately assess femoral head separation occurring during activities of daily living for healthy, active patients...
The role of the cemented all-polyethylene tibial component in total knee replacement: a 30-year patient follow-up and review of the literatureThomas J Blumenfeld
Knee 17:412-6. 2010
..These three groups would be the least likely to require a modular tibial liner exchange in their lifetime...
Hip fractures in the United States: 2008 nationwide emergency department sampleSunny H Kim
School of Medicine, University of California Davis, 2921 Stockton Boulevard, Sacramento, CA 95817, USA
Arthritis Care Res (Hoboken) 64:751-7. 2012
..To evaluate the recent epidemiology of hip fractures in the US...
THA with Delta ceramic on ceramic: results of a multicenter investigational device exemption trialWilliam G Hamilton
Anderson Orthopaedic Research Institute, 2501 Parkers Lane, Alexandria, VA 22306, USA
Clin Orthop Relat Res 468:358-66. 2010
..Level of Evidence: Level I, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence...
Fracture of a cross-linked polyethylene liner: a multifactorial issueThomas J Blumenfeld
Sutter Medical Center, University of California at Davis, Sacramento, California 95816, USA
J Arthroplasty 26:666.e5-8. 2011
..The report details several factors that were felt to be etiologic including the specific liner locking mechanism. The treatment options are discussed...
Early aseptic loosening of a modern acetabular component secondary to a change in manufacturingThomas J Blumenfeld
Sutter General Hospital, Sacramento, California 95816, USA
J Arthroplasty 21:689-95. 2006
..We report a series showing a 33% early loosening rate of the Sulzer Interop TM acetabular component (Sulzermedica, acquired by Zimmer, Warsaw, IN)...
Removing a well-fixed nonmodular large-bearing cementless acetabular component: a simple modification of an existing removal deviceThomas J Blumenfeld
Sutter Medical Center, Sacramento, California, USA
J Arthroplasty 25:498.e1-3. 2010
..A simple modification, placement of a bipolar head matching the inner diameter of the fixed shell, allows use of this removal device for nonmodular shells...
A painful metal-on-metal total hip arthroplasty: a diagnostic dilemmaThomas J Blumenfeld
University of California at Davis, Sutter General Hospital, Sacramento, California 95816, USA
J Arthroplasty 25:1168.e1-4. 2010
..This case report describes both of these findings and the treatment rendered in a painful subluxing metal-on-metal total hip arthroplasty presenting with ongoing pain and a large effusion...
Time to revision of primary THA is shorter for specialists than nonspecialistsBrandon J Ferney
University of California Davis Medical Center, Sacramento, CA, USA
Clin Orthop Relat Res 465:175-9. 2007
..5% versus 15.8%). As a result of possible selection bias in cases referred by the non-specialists, the indications for revision may not represent the modes of failure for arthroplasties performed by nonspecialists...