Abstract:
AIM:Navigated implantation of the cup and stem components enables additional parameters to be recorded for joint reconstruction. The results and reproducibility of the implant position were studied in a consecutive series of implantations with femoral transmitter (femoral C-clamp) close to the hip joint. METHOD:107 consecutive cementless THA operations with the Orthopilot Software THA 2.0 were analysed. The preoperative planning for cup and stem position were compared with the intraoperative data from the navigation system and the postoperative radiograph. Cup inclination and anteversion, leg lengths and offset changes and the rotation position of the Bicontact stem were investigated. RESULTS:98 % of the radiological cup positions were within 42.5 +/- 10 degrees inclination and all cases were within 10 +/- 10 degrees anteversion. The navigation system recorded 83 % of the relative leg length changes with an accuracy of +/- 5 mm. 15 % were in a range of +/- 10 mm. In 77 % of the operations, the Bicontact stem or the Bicontact B osteoprofiler could be positioned in the position measured by the Orthopilot of +/- 5 degrees of the box osteotome (i.e. medullary cavity opening). In 20 % the deviation was +/- 10 degrees . 73 % of the arthroplasties gave a relative offset change in a range of +/- 10 mm. A tendency to medialisation of the hip joint centre was seen in 62 % of the procedures. The mean was a small offset change of only 1.2 mm with a high standard deviation of 17.8 mm. CONCLUSION:The navigated implantation of stem and cup components with a femoral transmitter close to the joint leads to reproducible results. The distribution of femoral offset and leg length changes corresponds to clinical experience. Analysis of the radiographs does not appear sufficiently accurate for all the recorded parameters.
journal_name
Z Orthop Unfalljournal_title
Zeitschrift fur Orthopadie und Unfallchirurgieauthors
Kiefer H,Othman Adoi
10.1055/s-2007-965650subject
Has Abstractpub_date
2007-09-01 00:00:00pages
S49-52eissn
1864-6697issn
1864-6743journal_volume
145 Suppl 1pub_type
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,评审
doi:10.1055/s-0042-108910
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,评审
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-2007-965252
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 临床试验,杂志文章
doi:10.1055/s-0029-1185695
更新日期:2009-07-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
doi:10.1055/s-2007-965798
更新日期:2007-11-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 临床试验,杂志文章
doi:10.1055/s-2007-965550
更新日期:2007-07-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 临床试验,杂志文章
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更新日期:2007-03-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,随机对照试验
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 临床试验,杂志文章
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更新日期:2015-10-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,评审
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章,评审
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
doi:10.1055/s-0032-1328403
更新日期:2013-04-01 00:00:00
abstract::Tuberculosis constitutes an important clinical entity with 90 million new infections worldwide during the last decade. 10 % of these infections affect osseous structures based on haematogenous spread. Therefore, tuberculous spondylodiscitis remains a major illness in orthopaedics which needs to be considered in cases ...
journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
doi:10.1055/s-2008-1039246
更新日期:2009-03-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
doi:10.1055/s-2008-1038477
更新日期:2008-09-01 00:00:00
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journal_title:Zeitschrift fur Orthopadie und Unfallchirurgie
pub_type: 杂志文章
doi:10.1055/s-0029-1186156
更新日期:2010-01-01 00:00:00