Selected Publications PDF Print E-mail
1991

Schmalzried, T. P.; Amstutz, H. C.; and Dorey, F. J.: Nerve palsy associated with total hip replacement. Risk factors and prognosis. J Bone and Joint Surg, 73A: 1074-1080, 1991.Schmalzried, 1991

Kilgus, D. J.; Dorey, F. J.; Finerman, G. A. M.; and Amstutz, H. C.: Patient activity, sports participation, and impact loading on the durability of cemented total hip replacements. Clin Orthop,269:25-31, 1991.

1992

Amstutz, H. C.; Campbell, P.; Clarke, I. C.; and Kossovsky, N.: Mechanism and clinical significance of wear debris-induced osteolysis. Clin Orthop,276:7-18, 1992.

Schmalzried, T. P.; Amstutz, H. C.; Au, M.K.; and Dorey, F. J.: Etiology of deep sepsis in total hip arthroplasty. The significance of hematogenous and recurrent infections. Clin Orthop,280:200-207, 1992

Dorey F, Nasser S, Amstutz HC: The Need for Confidence Intervals in the Presentation of Orthopaedic Data. J Bone Joint Surg 75A:1844-1853, 1993.

1994

Amstutz, H.C.; Grigoris, P.; Safran, M.; Grecula, M.J.; Campbell, P.A., and Schmalzried, T.P.: Precision-fit surface hemiarthroplasty for femoral head osteonecrosis. Long-term results. J. Bone and Joint Surg. 76-B:423-427, May 1994.

Grigoris, P.; Grecula, M. J.; and Amstutz, H. C.: Tripolar hip replacement for recurrent prosthetic dislocation. Clin.Orthop.,148-155, 1994.

Campbell, P.; Ma, S.; Schmalzried, T., and Amstutz, H.C.: Tissue digestion for wear particle isolation. J. Biomed. Mat. Res. 28:523-526, 1994.

Schmalzried, T.P.; Guttmann, D.; Grecula, M., and Amstutz, H.C.: The relationship between the design, position, and articular wear of acetabular components inserted without cement in the development of pelvic osteolysis. J. Bone and Joint Surg. 76-A:677-688, 1994.

Dorey F, Grigoris P, Amstutz H: Making Do Without Randomized Trials. J Bone Joint Surg 76B:1-3, 1994

1995

McKellop, H. A.; Campbell, P.; Park, S. H.; Schmalzried, T. P.; Grigoris, P.; Amstutz, H. C.; and Sarmiento, A.: The origin of submicron polyethylene wear debris in total hip arthroplasty. Clin Orthop,311:3-20, 1995

1996

Mai, M.T.; Schmalzried, T.P., and Amstutz, H.C.: The contribution of frictional torque to loosening at the cement-bone interface in THARIES hip replacements. J. Bone and Joint Surg., 78-A:505-511, 1996.

Schmalzried, T.P.; Szuszczewicz, E.S.; Akizuki, K.H.; Petersen, T.D., and Amstutz, H.C..: Factors correlating with long-term survival of McKee-Farrar total hip prostheses. Clin. Orthop. 329S:S48-S59, 1996.

Schmalzried, T.P.; Fowble, V.A.; Ure, K.J., and Amstutz, H.C..: Metal on metal surface replacement of the hip: technique, fixation and early results. Clin. Orthop. 329S:S106-S114, 1996.

Jacobs, J.J.; Skipor, A.; Doorn, P.F.; Campbell, P.; Schmalzried, T.P.; Black, J., and Amstutz, H.C. Cobalt and chromium concentrations in patients with metal on metal total hip replacements. Clin. Orthop. 329S:S256-S263, 1996.

Amstutz, H. C.; Campbell, P.; McKellop, H.; Schmalzried, T. P.; Gillespie, W. J.; Howie, D.; Jacobs, J.; Medley, J.; and Merritt, K.: Metal on metal total hip replacement symposium, consensus document, 1996

Doorn, P. F.; Campbell, P. A.; and Amstutz, H. C.: Metal versus polyethylene wear particles in total hip replacements. A review. Clin. Orthop,329 Suppl:S206-216, 1996. Clin. Orthop,329 Suppl:S297-303, 1996.

1997

Amstutz, H.C.; Fowble, V.; Schmalzried, T.P., and Dorey, F.J.: Short-course indomethacin prevents heterotopic ossification in a high-risk population following total hip arthroplasty. J. Arthroplasty 12:126-132, 1997.

Schmalzried, T.P.; Campbell, P.; Schmitt, A.K.; Brown, I.C., and Amstutz, H.C.: Shapes and dimensional characteristics of polyethylene wear particles generated in vivo by total knee replacements compared to total hip replacements. J. Biomed. Mater. Res. (Appl. Biomater.) 38:203-210, 1997.

Szuszczewicz, E.S.; Schmalzried, T.P., and Petersen, T.D.: Progressive bilateral pelvic osteolysis in a patient with McKee-Farrar metal-metal total hip prostheses. J. Arthroplasty 12:819-824, 1997.

Schmalzried, T.P.; Akizuki, K.H.; Fedenko, A.N., and Mirra, J.: The role of access of joint fluid to bone in periarticular osteolysis. J. Bone and Joint Surg. 79-A:447-452, 1997.

1998

Amstutz, H. C.; Grigoris, P.; and Dorey, F. J.: Evolution and future of surface replacement of the hip. J Orthop Sci,3:169-186, 1998.

Schmalzried; T.P.; Szuszczewicz, E.S.; Northfield, M.R.; Akizuki, K.H.; Frankel, R.E.; Belcher, G.; and Amstutz, H.C.: Quantitative assessment of walking activity after total hip or knee replacement. J. Bone and Joint Surg. 80-A:54-59, 1998.

Schmalzried, T.P.; Fowble, V.; and Amstutz, H.C.: The fate of pelvic osteolysis after reoperation. Clin. Orthop. 350:128-137, 1998.

Ure, K.J.; Amstutz, H.C.; Nasser, S.; and Schmalzried, T.P.: Direct-exchange arthroplasty for the treatment of infection after total hip replacement. An average ten-year follow-up. J. Bone and Joint Surg. 80-A:961-968, 1998.

Schmalzried, T.P.; Dorey, F.J.; and McKellop, H.: The multifactorial nature of polyethylene wear in vivo. J. Bone and Joint Surg. 80-A:1234-1243, 1998.

1999

Schmalzried, T.P. and Callaghan, J.J.: Wear in total hip and knee replacements. J. Bone and Joint Surg. 81-A:115-136, 1999.

Zahiri, C.A.; Schmalzried, T.P., Ebramzadeh, E.; Szuszczewicz, E.S.; Salib, D.; Kim, C.; and Amstutz, H.C.: Lessons learned from loosening of the McKee-Farrar metal-on-metal total hip replacement. J. Arthroplasty 14:326-332, 1999.

Shepherd, E.F.; Toloza, E.; McClung, C.D.; and Schmalzried, T.P.: Step activity monitor (SAM): Increased accuracy in quantifying ambulatory activity. J. Orthop. Res. 17:703-708, 1999.

2000

Scott, D.L.: Campbell, P.A.; McClung, C.D. and Schmalzried, T.P.: Factors contributing to rapid wear and osteolysis in hips with modular acetabular bearings made of Hylamer. J. Arthroplasty 15:35-46, 2000.

McClung, C.D. et al.: The relationship between body mass index and activity in hip or knee arthroplasty patients. J. Orthop. Res. 18:35-39, 2000.

Schmalzried, T.P. et al: Wear is a function of use, not time. Clin. Orthop. 381:36-46, 2000.

Jackson, W.O. and Schmalzried, T.P.: Limited role of direct-exchange arthroplasty in the treatment of infected total hip replacements. Clin. Orthop. 381:101-105, 2000.

2001

Mikulak, S.A.; Mahoney, O.M.; Dela Rosa, M.; Schmalzried, T.P.: Loosening and osteolysis with the press-fit condylar posterior-cruciate-substituting total knee replacement. J. Bone and Joint Surg. 83-A:398-403, 2001.

Beaule, P.E.; Schmalzried, T.P.; Campbell, P. A.; Dorey, F. and Amstutz, H.C.: Duration of symptoms and outcome of hemiresurfacing for hip osteonecrosis. Clin. Orthop. 385:104-117, 2001.

Tharani, R.; Dorey, F. J. and Schmalzried, T.P.: The risk of cancer following total hip or total knee replacement. J. Bone and Joint Surg. 83-A; 774-780, 2001.

2002

Beaule, P. E.; Schmalzried, T. P.; Udomkiat, P.; and Amstutz, H. C.: Jumbo femoral head for the treatment of recurrent dislocation following total hip replacement. J Bone Joint Surg,84-A:256-263, 2002.

Beaule , P. E.; Campbell, P. A.; Walker, P. S.; Schmalzried, T. P.; Dorey, F. J.; Blunn, G. W.; Bell, C. J.; Yahia, L.; and Amstutz, H. C.: Polyethylene wear characteristics in vivo and in a knee stimulator. J Biomed Mater Res,60:411-419., 2002.

Campbell, P. A.; Wang, M.; Amstutz, H. C.; and Goodman, S. B.: Positive cytokine production in failed metal-on-metal total hip replacements. Acta Orthop Scand,73:506-512., 2002.

Skipor, A.; Campbell, P.; Paterson, L.; Amstutz, H.; Schmalzried, T.P; and Jacobs, J.: Serum and Urine Metal Levels in Patients with Metal on Metal Surface Arthroplasty. J. Mat Sci,13:1227-1234, 2002.

Silva M; Shepherd EF; Jackson WO; Dorey FJ; and Schmalzried, T. P: Average patient walking activity approaches 2 million cycles per year: pedometers under-record walking activity. J Arthroplasty,693-697, 2002.

2003

Beaule PE, LeDuff MJ, Amstutz HC: Hemiresurfacing arthroplasty of the hip for failed free-vascularized fibular graft. J Arthroplasty. 2003 Jun;18(4):519-23.

Beaule PE, Roussignol X, Schmalzried TP, et al.: Tripolar arthroplasty for recurrent total hip prosthesis dislocation. Rev Chir Orthop Reparatrice Appar Mot 89:242-9, 2003.

Heisel C, Silva M, Schmalzried TP: Bearing surface options for total hip replacement in young patients. J Bone Joint Surg Am 85-A:1366-79, 2003.

Catelas I, Campbell PA, Dorey F, et al: Semi-quantitative analysis of cytokines in MM THR tissues and their relationship to metal particles. Biomaterials 24:4785-4797, 2003.

Silva M, Shepherd EF, Jackson WO, McLung C, Schmalzried TP: Knee strength following total knee replacement. J Arthroplasty,18 (5): 605-11, 2003.

Beaule PE, Le Duff MJ, Dorey FJ, Amstutz HC: Fate of Cementless Acetabular Components Retained During Revision Total Hip Arthroplasty. J Bone Joint Surg (Am) 85-A (12): 2288-93, 2003.

2004

Amstutz H, Ebramzadeh E, Sarkany A, Le Duff M, Rude R. Preservation of bone mineral density of the proximal femur following hemisurface arthroplasty. Orthopaedics. 2004;27:1266-71.

Beaulé P, Amstutz H, Le Duff M, Dorey F. Surface arthroplasty for osteonecrosis of the hip: Hemiresurfacing versus metal-on-metal hybrid resurfacing. J Arthroplasty. 2004;19:54-8.

Amstutz H, Campbell P, Le Duff M. Fracture of the neck of the femur after surface arthroplasty of the hip. J Bone and Joint Surg. 2004;86 A:1874-7.

Amstutz H, Le Duff M, Beaulé P. Prevention and treatment of dislocation after total hip replacement using large diameter balls. Clin Orthop. 2004;429:108-16.

Silva M, Lee K, Heisel C, Dela Rosa M, Schmalzried T. The biomechanical results of total hip resurfacing arthroplasty. J Bone and Joint Surg. 2004;86-A:40-6.

Beaulé P, Lee J, Le Duff M, Amstutz H, Ebramzadeh E. Orientation of the femoral component in surface arthroplasty of the hip: a biomechanical and clinical analysis. J Bone Joint Surg . 2004;86-A:2015-21.

Beaulé P, Dorey F, Le Duff M, Gruen T, Amstutz H. Risk factors affecting early outcome of metal on metal surface arthroplasty of the hip in patients 40 years old and younger. Clin Orthop. 2004;418:87-93.

Amstutz H, Beaulé P, Dorey F, Le Duff M, Campbell P, Gruen T. Metal-on-metal hybrid surface arthroplasty: two to six year follow-up. J Bone and Joint Surg. 2004;86 A:28-39.

Beaulé P, Ebramzadeh E, Le Duff M, Prasad R, Amstutz H. Cementing a liner into a stable cementless acetabular shell in revision hip surgery: the double socket technique. J Bone Joint Surg . 2004;86-A:924-34.

Beaulé P, Le Duff M, Campbell P, Dorey F, Park S, Amstutz H. Metal-on-metal surface arthroplasty with a cemented femoral component: A 7-10 year follow-up study. J Arthroplasty. 2004;19:17-22.

Ebramzadeh E, Beaulé P, Culwell J, Amstutz H. Fixation strength of an all-metal acetabular component cemented into an acetabular shell: a biomechanical analysis. J Arthroplasty. 2004;19:45-9.


2005

Schmalzried T, Silva M, de la Rosa M, Choi E, Fowble V. Optimizing patient selection and outcomes with total hip resurfacing. Clin Orthop Relat Res. 2005;441:200-4.
Amstutz H, Su E, Le Duff M. Surface arthroplasty in young patients with hip arthritis secondary to childhood disorders. Orthop Clin North Am. 2005;36:223-30.

Heisel C, Silva M, Schmalzried T. In vivo wear of bilateral total hip replacements: conventional versus crosslinked polyethylene. Arch Orthop Trauma Surg. 2005;125:555-7.

Heisel C, Silva M, dela Rosa M, Schmalzried T. The effects of lower-extremity total joint replacement for arthritis on obesity. Orthopedics. 2005;28:157-9.

2006

Amstutz H, Le Duff M. Background of metal-on-metal resurfacing. Proc Inst Mech Eng [H]. 2006;220:85-94.

Campbell P, Beaulé P, Ebramzadeh E, Le Duff M, De Smet K, Lu Z, Amstutz H. A study of implant failure in metal-on-metal surface arthroplasties. Clin Orthop. 2006;453:35-46.

Beaulé P, Dorey F, Hoke R, Le Duff M, Amstutz H. The value of patient activity level in the outcome of total hip arthroplasty. J Arthroplasty. 2006;21:547-52.

Amstutz H. Hip resurfacing arthroplasty. J Am Acad Orthop Surg. 2006;14:452-3.

Mont M, Ragland P, Etienne G, Seyler T, Schmalzried T. Hip resurfacing arthroplasty. J Am Acad Orthop Surg. 2006;14:454-63.
Amstutz H, Beaulé P, Dorey F, Le Duff M, Campbell P, Gruen T. Metal-on-metal hybrid surface arthroplasty - Surgical technique. J Bone and Joint Surg. 2006;88 A:234-49.

2007
Amstutz H, Antoniades J, Le Duff M. Results of metal-on-metal hybrid hip resurfacing for Crowe type I and II developmental dysplasia. J Bone and Joint Surg Am. 2007;89:339-46.

Bitsch R, Heisel C, Silva M, Schmalzried T. Femoral cementing technique for hip resurfacing arthroplasty. J Orthop Res. 2007; 25(4):423-31.

dela Rosa M, Silva M, Heisel C, Reich M, Schmalzried T. Range of motion after total hip resurfacing. Orthopedics. 2007;30:352-7.

Schmalzried T, Fowble V, dela Rosa M. A comparison of total hip resurfacing and total hip replacement patients and outcomes. Clin Orthop Relat Res. 2007;In Press:

Amstutz H, Campbell P, Le Duff M. Metal-on-metal hip resurfacing: what have we learned? AAOS Instructional Course Lectures. 2007;56:149-61.

Amstutz H, Le Duff M, Campbell P, Dorey F. The effects of technique changes on aseptic loosening of the femoral component in hip resurfacing. Results of 600 Conserve Plus with a 3-9 year follow-up. J Arthroplasty. 2007;22:481-9.

Amstutz H, Le Duff M, Dorey F. Hip resurfacing: indications, results, and prevention of complications. In:  Sofue M,  Endo N. Treatment of osteoarthritic change in the hip.  Shinano, Japan: Springer; 2007.  195-204.

Amstutz H, Ball S, Le Duff M, Dorey F. Hip resurfacing for patients under 50 years of age. Results of 350 Conserve Plus with a 2-9 year follow-up. Clin Orthop. 2007;460:159-64.

Ball S, Le Duff M, Amstutz H. Early results of conversion of a failed femoral component in hip resurfacing arthroplasty. J Bone and Joint Surg Am. 2007;89:735-41.

Ball S, Pinsorsnak P, Amstutz H, Schmalzried T. Extended travel after hip arthroplasty surgery. Is it safe? J Arthroplasty. 2007;22:29-32.

Le Duff M, Amstutz H, Dorey F. Metal-on-metal hip resurfacing for obese patients. J Bone and Joint Surg Am. 2007;89:In Press.

Schmalzried T, Fowble V, dela Rosa M. A comparison of total hip resurfacing and total hip replacement patients and outcomes. Clin Orthop Relat Res. 2007;In Press:

 
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Dr. Amstutz-ORS, Las Vegas, NV. February 22-25 2009
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Dr. Amstutz-Annual Fall Congress of the Korean Orthopaedic Association, Seoul, Korea. October 15-17, 2009

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Dr. Schmalzried-Orthopaedics Today, Hawaii. January 9-15 2009

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Dr. Schmalzried-Joint Replacement Fellows Course– Vail, CO. January 16-18 2009
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Dr. Schmalzried-ASR Design Meeting, San Francisco, CA. January 29-30 2009
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Dr. Schmalzried-Orthopaedic Research Society – Las Vegas, NV. February 22-24 2009
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Dr. Schmalzried-American Academy of Orthopaedic Surgeon – Las Vegas, NV. February 25- March 1. 2009
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Dr. Schmalzried-Stryker Orthopaedics Innovation Council Meeting. April 3-5 2009
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Dr. Schmalzried-AAHKS/AAOS Cutting Edge Developments and Controversies in Total Joint Arthoplasty - San Francisco, CA May 1-2 2009
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Dr. Schmalzried-82nd Annual Meeting of the Japanese Orthopaedic Association – Fukuoaka, Japan. May 14-16 2009
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Biomechanical Restoration/Enhancement of Total HipArthop...

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Dr. Schmalzried-3rd Advanced Resurfacing Course Ghent 2009 – Ghent, Belgium. Jun 17-20 2009
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JRI Research

The staff of JRI is engaged in various research studies, including: improving long term joint replacement durability by selective use of new replacement bearing technology, histological characterization of implant fixation, relationship between wear debris and aseptic loosening.

 
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