Abstract:
PURPOSE:Occult intra-operative periprosthetic acetabular fracture is a seldom-reported complication of primary total hip arthroplasty (THA). It may potentially be associated with cup instability and implant loosening. The present study aimed to investigate clinical consequences of this complication. METHODS:Between 2003 and 2012, a total of 3390 cementless total hip arthroplasties (THA) were performed at our institution. Their medical histories were retrospectively reviewed to identify all patients who received a thin-layer computer tomography (CT) scan of the pelvis including the acetabulum within the first 30 post-operative days. They were evaluated and classified by two radiologists independently with respect to the presence of recent acetabular fractures. All cases with acetabular and periacetabular fractures were included in this study. Electronic medical records were reviewed to assess implant revision. Cup stability was measured with EBRA (Einzel-Bild-Röntgen-Analyse) from plain X-rays. RESULTS:Periprosthetic fractures of the acetabulum were identified in 58 (50.4%) of 115 selected patients. Fractures close to but not including the acetabulum were identified in 45% (n = 26/58) of the patients, at the superolateral wall in 17% (n = 10/58), at the anterior wall of the acetabulum in 16% (n = 9/58) and in 10% (n = 6/58) each at the medial wall, and at the posterior wall respectively. One out of these 58 fractures could not be classified. Three of a total of six occult medial wall fractures had to be revised, and another two showed a high implant migration. The highest cup migration values however were found after fractures of the superolateral wall. Incomplete column fractures did not influence implant survival. CONCLUSION:Central wall acetabular fractures, although unrecognized intra- and post-operatively may impair implant survival after THA.
journal_name
Int Orthopjournal_title
International orthopaedicsauthors
Dammerer D,Putzer D,Glodny B,Petersen J,Arrich F,Krismer M,Biedermann Rdoi
10.1007/s00264-018-4084-7subject
Has Abstractpub_date
2019-07-01 00:00:00pages
1583-1590issue
7eissn
0341-2695issn
1432-5195pii
10.1007/s00264-018-4084-7journal_volume
43pub_type
杂志文章abstract::Periprosthetic fractures of the acetabulum represent a rare incident in primary and revision total hip arthroplasty. The management of these fractures can be challenging. At present, there are no reliable guidelines for the treatment of periprosthetic acetabular fractures. Periprosthetic acetabular fractures can occur...
journal_title:International orthopaedics
pub_type: 杂志文章,评审
doi:10.1007/s00264-015-2968-3
更新日期:2015-10-01 00:00:00
abstract::The mechanoreceptors in the collateral ligaments of the knee joint in rat hindlimbs were studied. In group II (n=10) the femoral and obturator nerves were sectioned. In both groups III and V (n=20) the sciatic nerve was sectioned. In group V (n=10) the sectioned sciatic nerve was sutured 4 weeks after sectioning. In g...
journal_title:International orthopaedics
pub_type: 杂志文章
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journal_title:International orthopaedics
pub_type: 临床试验,杂志文章
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abstract::Between February 1996 and July 2000 eight patients (ages 35-74 years) with nine severely impacted humeral head fractures were operated on with the aim of preserving the humeral heads. Patients were treated surgically with open reduction, autologous bone grafting, and internal fixation with a screw-wiring technique. Th...
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更新日期:1994-04-01 00:00:00
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pub_type: 古典文章,历史文章,杂志文章
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更新日期:2020-10-01 00:00:00