Abstract：
BACKGROUND:Femoroacetabular impingement has been proposed as a cause of early osteoarthritis, but it is not known how this develops over time or whether the shape of the proximal femur influences this risk. QUESTIONS/PURPOSES:(1) Which areas of the acetabulum are worn more frequently by individuals with a cam deformity of the proximal femur? (2) Do observed acetabular wear patterns differ based on the etiology of the cam deformity? (3) Do wear patterns of individuals with a cam deformity differ based on an individual's age? METHODS:We examined 645 corresponding femora and acetabuli from the Hamann-Todd Osteological Collection and determined the offset and alpha angle using photographs; 370 specimens met inclusion criteria and were examined for signs of wear and the locations of wear were recorded. Specimens were separated into eight subgroups based on age either younger than 40 years or older than 60 years, alpha angle greater or less than 55°, and degree of anterior head-neck offset. We compared the prevalence of wear between groups in each location. RESULTS:Individuals with abnormal geometry of the proximal femur demonstrated different wear patterns from individuals with normal geometry. There were few differences in wear patterns identified based on the etiology of the femoral deformity. Abnormal femoral geometry was associated with more frequent wear primarily at the anterosuperior acetabulum for individuals younger than 40 years of age and globally for individuals older than 60 years of age. CONCLUSION:Femoral geometry appears to influence the pattern of acetabular wear occurring over time.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Streit JJ,Levine A,Barrett IJ,Cooperman DR,Goldberg Vdoi
10.1007/s11999-012-2720-xsubject
Has Abstractpub_date
2013-02-01 00:00:00pages
478-85issue
2eissn
0009-921Xissn
1528-1132journal_volume
471pub_type
杂志文章abstract：:Two hundred cases of intracapsular femoral neck fractures have been treated with a multiple parallel pin technique similar to that originated by Austin Moore. The technique employs a personally designed guide which facilitates insertion of multiple parallel pins. The fixation obtained satisfactorily resists shear stre...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1978-11-01 00:00:00
abstract：:The acute and repetitive impact and torsional joint loading that occurs during participation in sports can damage articular surfaces causing pain, joint dysfunction, and effusions. In some instances, this articular surface damage leads to progressive joint degeneration. Three classes of chondral and osteochondral inju...
journal_title：Clinical orthopaedics and related research
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doi：10.1097/00003086-200209000-00004
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-10-01 00:00:00
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pub_type： 杂志文章,多中心研究
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
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更新日期：1978-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：
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journal_title：Clinical orthopaedics and related research
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更新日期：1979-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：2006-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1991-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：10.1097/00003086-199808000-00008
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：1993-08-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1993-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1981-10-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1980-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：
更新日期：1979-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/01.blo.0000183739.50869.bb
更新日期：2006-01-01 00:00:00
