Douglas E Padgett
Affiliation: Hospital for Special Surgery
- Retrieval analysis of nonmodular constrained tibial inserts after primary total knee replacementDouglas E Padgett
Division of Adult Reconstruction and Joint Replacement, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
Orthop Clin North Am 43:e39-43. 2012..Reliance on the polyethylene post for implant stability was associated with post and articular surface damage and may be a potential source of failure. Attempts to achieve implant stability using soft tissue techniques seem justified...
- Cancellous impaction grafting in femoral revision THADouglas E Padgett
Hospital for Special Surgery, Adult Reconstruction and Joint Replacement Service, 535 E 70 St, New York, NY 10021, USA
Orthopedics 34:e482-4. 2011..We believe that impaction grafting remains a viable option for the management of the severely deficient femur in whom cementless fixation methods are questionable...
- Influence of total hip design on dislocation: a computer model and clinical analysisDouglas E Padgett
Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, USA
Clin Orthop Relat Res 447:48-52. 2006..8% for 22 mm bearings. These findings support the notion that computer aided design modeling of implant systems is useful in evaluating range of motion and this technique could be employed during the design of any new implant system...
- Wear damage in mobile-bearing TKA is as severe as that in fixed-bearing TKANatalie H Kelly
Department of Biomechanics, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
Clin Orthop Relat Res 469:123-30. 2011..Mobile-bearing TKAs reportedly have no clinical superiority over fixed-bearing TKAs, but a potential benefit is improved polyethylene wear behavior...
- Retrieval analysis of failed constrained acetabular linersSteven N Shah
Hip and Knee Service, Hospital for Special Surgery, New York, New York, USA
J Arthroplasty 24:54-7. 2009..No association was found between liner damage and clinical and radiographic variables...
- Impingement contributes to backside wear and screw-metallic shell fretting in modular acetabular cupsMordechai Kligman
Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, New York, New York, USA
J Arthroplasty 22:258-64. 2007..Our results suggest that impingement in a modular acetabular component correlated with increased backside wear and screw-metallic shell corrosion and fretting...
- Ceramic-on-ceramic total hip arthroplasty: incidence of instability and noiseDavid Schroder
Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY10021, USA
Clin Orthop Relat Res 469:437-42. 2011..Alumina-on-alumina bearings exhibit extremely low wear rates in vitro, but concerns exist regarding component impingement with the potential for dislocation and the occurrence of noise...
- What Causes Unexplained Pain in Patients With Metal-on metal Hip Devices? A Retrieval, Histologic, and Imaging AnalysisDanyal H Nawabi
Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
Clin Orthop Relat Res 472:543-54. 2014..Adverse tissue reactions associated with metal-on-metal (MOM) hips are common in resurfacing and total hip arthroplasty (THA) designs. The etiology of these reactions in painful, well-positioned arthroplasties is inconsistently described...
- Rotating-platform has no surface damage advantage over fixed-bearing TKAKirsten Stoner
Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
Clin Orthop Relat Res 471:76-85. 2013..Our design-matched retrieval study aimed to investigate if differences in bearing wear damage exist between fixed- and mobile-bearing TKAs with similar condylar geometry...
- Incidence of ceramic liner malseating in Trident acetabular shellAnna N Miller
Department of Orthopedic Surgery, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, USA
Clin Orthop Relat Res 467:1552-6. 2009..Level of Evidence: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence...
- Remelting of highly cross-linked polyethylene worn under laboratory conditionsAdam M Lazzarini
Biomechanics Laboratory, Hospital for Special Surgery, New York, NY 10021, USA
Clin Orthop Relat Res 465:128-32. 2007..Our experiments represent a severe wear case but demonstrate removal of material from the surface through measurable wear prevents the return of identifiable machining marks despite remelting...
- Integrity of repaired posterior structures after THAEdwin P Su
Hospital for Special Surgery, New York, NY 10021, USA
Clin Orthop Relat Res 447:43-7. 2006..15). Ultrasonography can be used to effectively assess the integrity of the posterior repair after total hip arthroplasty. The posterior structures were intact in the majority of patients 3 months after total hip arthroplasty...
- Taper Design Affects Failure of Large-head Metal-on-metal Total Hip ReplacementsNader A Nassif
Department of Orthopedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
Clin Orthop Relat Res 472:564-71. 2014..Large-head metal-on-metal (MoM) hip arthroplasties have demonstrated poor survival. Damage at the taper-trunnion junction is a contributing factor; however, the influence of junction design is not well understood...
- Ceramic liner fractures presenting as squeaking after primary total hip arthroplastyMatthew P Abdel
Adult Reconstruction and Joint Replacement Division M P A, T J H, D J M, E P S, P M P, and D E P and Department of Biomechanics M E E and T M W, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021 E mail address for D E Pa
J Bone Joint Surg Am 96:27-31. 2014..The purpose of this investigation was to report on four patients who presented with hip pain and squeaking due to fractured ceramic liners after ceramic-on-ceramic total hip arthroplasty...
- Impingement of acetabular cups in a hip simulator: comparison of highly cross-linked and conventional polyethyleneKeith G Holley
Hospital for Special Surgery, Laboratory for Biomedical Mechanics and Materials, New York, USA
J Arthroplasty 20:77-86. 2005..Wear rates and damage of highly cross-linked polyethylene cups were significantly higher in an impingement wear test than in previous simulator studies...
- MRI Predicts ALVAL and Tissue Damage in Metal-on-Metal Hip ArthroplastyDanyal H Nawabi
Adult Reconstruction and Joint Replacement Division Surgery, Hospital for Special Surgery, New York, NY, USA
Clin Orthop Relat Res 472:471-81. 2014..Although MRI can identify ALTR in MOM hips, it is unclear whether the MRI findings predict those at revision surgery...
- Increased complication rate following conversion total hip arthroplasty after cephalomedullary fixation for intertrochanteric hip fractures: a multi-center studyChristine M Pui
Adult Reconstruction and Joint Replacement Division, Hospital for Special Surgery, New York, New York
J Arthroplasty 28:45-7. 2013..9% compared with 11.7% (P=0.001) in converted SHS patients. Prior fixation with CMN may be associated with significantly higher complication rates during conversion. ..
- Laser scanning as a useful tool in implant retrieval analysis: a demonstration using rotating platform and fixed bearing tibial insertsKirsten E Stoner
Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, New York
J Arthroplasty 28:152-6. 2013..Seven different deviation patterns were present between the RP and FB inserts and were a function of design. In conclusion laser scanning was found to be a useful objective tool for analyzing arthroplasty retrievals. ..
- Haptically guided robotic technology in total hip arthroplasty: a cadaveric investigationDanyal H Nawabi
Adult Reconstruction and Joint Replacement Division, Hospital for Special Surgery, New York 10021, USA
Proc Inst Mech Eng H 227:302-9. 2013..01). Robotic-assistance is more accurate than manual implantation in achieving optimal cup orientation. It has the ability to eliminate human error from THA and should be considered in light of THA failures due to component malposition...
- The efficacy of 500 CentiGray radiation in the prevention of heterotopic ossification after total hip arthroplasty: a prospective, randomized, pilot studyDouglas E Padgett
Hip and Knee Service, The Hospital for Special Surgery, New York, New York, USA
J Arthroplasty 18:677-86. 2003..As a result of this pilot study, 500 cGy radiation treatment appears to be effective in the prevention of clinically significant heterotopic ossification after total hip arthroplasty...
- The use of a constrained acetabular component for recurrent dislocationGary S Shapiro
Illinois Bone and Joint Institute, 2401 Ravine Way, Glenview, IL 60025, USA
J Arthroplasty 18:250-8. 2003..4% represents a significant improvement over other methods reported. Repeat dislocation was only seen in dissociation of cemented liners into well-fixed shells. We do not recommend this mode of fixation...
- Arthroscopic versus open osteoplasty of the head-neck junction: a cadaveric investigationPatrick S Sussmann
Schulthess Klinik, Zurich, Switzerland
Arthroscopy 23:1257-64. 2007..Femoroacetabular impingement can be successfully treated by open osteoplasty, although arthroscopic osteoplasty is growing in popularity. We compared the precision and accuracy of arthroscopic versus open osteoplasty...