Modular Ulnar Head Decoupling Force: Case Report
Cobalt-chrome modular distal ulnar head replacement arthroplasty is a surgical option to restore stability to the distal radioulnar joint rendered unstable by hemi-resection arthroplasty or a total resection arthroplasty. However, the revision of dislocated modular cobalt-chrome ulnar head implants...
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| Veröffentlicht in: | The Journal of hand surgery (American ed.) 2009-07, Vol.34 (6), p.1063-1065 |
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| container_title | The Journal of hand surgery (American ed.) |
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| creator | Naidu, Sanjiv H., MD, PhD Radin, Alex, PhD |
| description | Cobalt-chrome modular distal ulnar head replacement arthroplasty is a surgical option to restore stability to the distal radioulnar joint rendered unstable by hemi-resection arthroplasty or a total resection arthroplasty. However, the revision of dislocated modular cobalt-chrome ulnar head implants may pose an important intraoperative challenge. The Morse-taper disassembly force of modular ulnar head implants is not available in the current published literature. We present a case in which tremendous difficulty was encountered while revising a dislocated modular cobalt-chrome distal ulnar head implant. The mean Morse-taper disassembly force of the retrieved modular cobalt-chrome implant was 2958 N ± 1272. At nearly 4.5 times the average body weight, the modular ulnar head Morse-taper disassembly strength presented a formidable force to overcome intraoperatively. |
| doi_str_mv | 10.1016/j.jhsa.2009.02.013 |
| format | Article |
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However, the revision of dislocated modular cobalt-chrome ulnar head implants may pose an important intraoperative challenge. The Morse-taper disassembly force of modular ulnar head implants is not available in the current published literature. We present a case in which tremendous difficulty was encountered while revising a dislocated modular cobalt-chrome distal ulnar head implant. The mean Morse-taper disassembly force of the retrieved modular cobalt-chrome implant was 2958 N ± 1272. At nearly 4.5 times the average body weight, the modular ulnar head Morse-taper disassembly strength presented a formidable force to overcome intraoperatively.</description><identifier>ISSN: 0363-5023</identifier><identifier>EISSN: 1531-6564</identifier><identifier>DOI: 10.1016/j.jhsa.2009.02.013</identifier><identifier>PMID: 19446967</identifier><identifier>CODEN: JHSUDV</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Adult ; Arthritis ; arthroplasty ; Arthroplasty, Replacement ; Biological and medical sciences ; Biomechanical Phenomena ; Chromium Alloys ; Device Removal ; Diseases of the osteoarticular system ; distal radioulnar joint ; Female ; Humans ; Joint Dislocations - diagnostic imaging ; Joint Prosthesis ; Medical sciences ; Miscellaneous. Osteoarticular involvement in other diseases ; Morse taper ; Orthopedic surgery ; Orthopedics ; Osteoarthritis - surgery ; Radiography ; Reoperation ; Surgery (general aspects). 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However, the revision of dislocated modular cobalt-chrome ulnar head implants may pose an important intraoperative challenge. The Morse-taper disassembly force of modular ulnar head implants is not available in the current published literature. We present a case in which tremendous difficulty was encountered while revising a dislocated modular cobalt-chrome distal ulnar head implant. The mean Morse-taper disassembly force of the retrieved modular cobalt-chrome implant was 2958 N ± 1272. At nearly 4.5 times the average body weight, the modular ulnar head Morse-taper disassembly strength presented a formidable force to overcome intraoperatively.</description><subject>Adult</subject><subject>Arthritis</subject><subject>arthroplasty</subject><subject>Arthroplasty, Replacement</subject><subject>Biological and medical sciences</subject><subject>Biomechanical Phenomena</subject><subject>Chromium Alloys</subject><subject>Device Removal</subject><subject>Diseases of the osteoarticular system</subject><subject>distal radioulnar joint</subject><subject>Female</subject><subject>Humans</subject><subject>Joint Dislocations - diagnostic imaging</subject><subject>Joint Prosthesis</subject><subject>Medical sciences</subject><subject>Miscellaneous. Osteoarticular involvement in other diseases</subject><subject>Morse taper</subject><subject>Orthopedic surgery</subject><subject>Orthopedics</subject><subject>Osteoarthritis - surgery</subject><subject>Radiography</subject><subject>Reoperation</subject><subject>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</subject><subject>Ulna - surgery</subject><subject>ulnar head</subject><subject>Wrist Joint - diagnostic imaging</subject><subject>Wrist Joint - surgery</subject><issn>0363-5023</issn><issn>1531-6564</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kcFu1DAQhi0EotvCC3BAudBbwtgTOxghpGqhtFIREtCz5bUn4JCNF3uD1Levo12BxKEXz-X7Z6zvZ-wFh4YDV6-HZviZbSMAdAOiAY6P2IpL5LWSqn3MVoAKawkCT9hpzgNASaF8yk64blulVbdi8Dn6ebSpuh2n8l6R9dUHcnHejWH6UV3G5OhttbaZqq-0i2n_jD3p7Zjp-XGesdvLj9_XV_XNl0_X64ub2rWo97W03PeKlEDsredeaCmF5y26rtcbRALBOSh0ljonLWyURYReSWk1cunxjJ0f9u5S_D1T3pttyI7G0U4U52xUJ1su3mABxQF0KeacqDe7FLY23RkOZvFkBrN4MosnA8IUTyX08rh93mzJ_4scxRTg1RGw2dmxT3ZyIf_lBO-0kJoX7t2Bo-LiT6Bksgs0OfIhkdsbH8PD_3j_X9wV76Fc_EV3lIc4p6lYNtzkEjDflkaXQkGXLqWUeA9t0Zhm</recordid><startdate>20090701</startdate><enddate>20090701</enddate><creator>Naidu, Sanjiv H., MD, PhD</creator><creator>Radin, Alex, PhD</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20090701</creationdate><title>Modular Ulnar Head Decoupling Force: Case Report</title><author>Naidu, Sanjiv H., MD, PhD ; Radin, Alex, PhD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c439t-5a1df6e6233fad1d29552d143c7f9b33e0211063cae7c5a0b6a330f655a9315d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adult</topic><topic>Arthritis</topic><topic>arthroplasty</topic><topic>Arthroplasty, Replacement</topic><topic>Biological and medical sciences</topic><topic>Biomechanical Phenomena</topic><topic>Chromium Alloys</topic><topic>Device Removal</topic><topic>Diseases of the osteoarticular system</topic><topic>distal radioulnar joint</topic><topic>Female</topic><topic>Humans</topic><topic>Joint Dislocations - diagnostic imaging</topic><topic>Joint Prosthesis</topic><topic>Medical sciences</topic><topic>Miscellaneous. Osteoarticular involvement in other diseases</topic><topic>Morse taper</topic><topic>Orthopedic surgery</topic><topic>Orthopedics</topic><topic>Osteoarthritis - surgery</topic><topic>Radiography</topic><topic>Reoperation</topic><topic>Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases</topic><topic>Ulna - surgery</topic><topic>ulnar head</topic><topic>Wrist Joint - diagnostic imaging</topic><topic>Wrist Joint - surgery</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Naidu, Sanjiv H., MD, PhD</creatorcontrib><creatorcontrib>Radin, Alex, PhD</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of hand surgery (American ed.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Naidu, Sanjiv H., MD, PhD</au><au>Radin, Alex, PhD</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modular Ulnar Head Decoupling Force: Case Report</atitle><jtitle>The Journal of hand surgery (American ed.)</jtitle><addtitle>J Hand Surg Am</addtitle><date>2009-07-01</date><risdate>2009</risdate><volume>34</volume><issue>6</issue><spage>1063</spage><epage>1065</epage><pages>1063-1065</pages><issn>0363-5023</issn><eissn>1531-6564</eissn><coden>JHSUDV</coden><abstract>Cobalt-chrome modular distal ulnar head replacement arthroplasty is a surgical option to restore stability to the distal radioulnar joint rendered unstable by hemi-resection arthroplasty or a total resection arthroplasty. However, the revision of dislocated modular cobalt-chrome ulnar head implants may pose an important intraoperative challenge. The Morse-taper disassembly force of modular ulnar head implants is not available in the current published literature. We present a case in which tremendous difficulty was encountered while revising a dislocated modular cobalt-chrome distal ulnar head implant. The mean Morse-taper disassembly force of the retrieved modular cobalt-chrome implant was 2958 N ± 1272. At nearly 4.5 times the average body weight, the modular ulnar head Morse-taper disassembly strength presented a formidable force to overcome intraoperatively.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>19446967</pmid><doi>10.1016/j.jhsa.2009.02.013</doi><tpages>3</tpages></addata></record> |
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| ispartof | The Journal of hand surgery (American ed.), 2009-07, Vol.34 (6), p.1063-1065 |
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| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adult Arthritis arthroplasty Arthroplasty, Replacement Biological and medical sciences Biomechanical Phenomena Chromium Alloys Device Removal Diseases of the osteoarticular system distal radioulnar joint Female Humans Joint Dislocations - diagnostic imaging Joint Prosthesis Medical sciences Miscellaneous. Osteoarticular involvement in other diseases Morse taper Orthopedic surgery Orthopedics Osteoarthritis - surgery Radiography Reoperation Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases Ulna - surgery ulnar head Wrist Joint - diagnostic imaging Wrist Joint - surgery |
| title | Modular Ulnar Head Decoupling Force: Case Report |
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