Early Prosthetic Complications After Unipolar Hemiarthroplasty

Weinrauch, Patrick C.; Moore, William R.; Shooter, David; Wilkinson, Matthew; Bonrath, Esther M.; Dedy, Nicolas J.; McMeniman, Timothy J.; Jabur, Majid; Whitehouse, Sarah L.; Crawford, Ross

doi:10.1111/j.1445-2197.2006.03757.x

Cited by 29 publications

(28 citation statements)

References 12 publications

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“…The development of thigh and groin pain is a reliable marker of prosthesis failure [2] often occurring secondary to prosthetic stem loosening [4,7,9,10]. This complication is avoided by using a cemented hemiarthroplasty [3][4][5].…”

Section: Discussionmentioning

confidence: 98%

“…Divide the width of the stem by the width of the canal. have shown that careful monitoring and aggressive fluid resuscitation significantly reduce the negative effects of cement-associated complications [3,4,9].…”

Section: Discussionmentioning

confidence: 99%

“…The use of the AMP is usually reserved for the frail, lowdemand elderly patient [9, 10] many of whom have multiple medical pathologies [5,9]. The reduced risk of cement associated complications may make the AMP an attractive option for these patients.…”

Section: Discussionmentioning

confidence: 99%

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The relationship of head size versus metaphyseal fit with the Austin Moore hemiarthroplasty

Rehmatullah

MacDonald

Ingham

et al. 2010

Eur Orthop Traumatol

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Purpose It has previously been suggested that failure to achieve 70% metaphyseal fit with the Austin Moore prosthesis predisposes to subsidence and failure of the prosthesis secondary to stem loosening. We performed a radiological review to test this hypothesis, and determine whether a correlation existed between head size and metaphyseal fit of the uncemented Austin Moore hip prosthesis. Methods Post-operative radiographs of 102 uncemented Austin Moore hemiarthroplasty patients were retrospectively reviewed. Three observers blinded to the head size of the prosthesis, measured the percentage metaphyseal fit of each stem, using a previously published technique. Results Eighty-six females and 16 males were included in this study. Eighteen of the radiographs were excluded for incorrect implantation, narrow stem insertion, and un-interpretable post-operative radiographs. Implants with a head size of 42 mm had an average metaphyseal fit of 84.5%. Those with head size 54 mm had only a 56% metaphyseal fit. The result was strongly associated with an R value of −0.93. Conclusion We have shown an inverse correlation exists between prosthesis head size and metaphyseal fit. Austin Moore prostheses with head sizes greater than 49 mm are likely to be loose from the moment of insertion. This poses a particular risk in men. In our study, only one male required prosthesis with a head less than 49 mm. In these patients, use of an alternative prosthesis such as a bipolar uncemented or cemented hemiarthroplasty is recommended.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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The relationship of head size versus metaphyseal fit with the Austin Moore hemiarthroplasty

Rehmatullah

MacDonald

Ingham

et al. 2010

Eur Orthop Traumatol

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“…The reduction in use of cementless monoblock implants was ascribed to poorer outcomes (in terms of loosening, pain, periprosthetic fractures) and higher revision rates. 5,[7][8][9][10] The more expensive bipolar implants have little benefit over unipolar implants. 6,[11][12][13] Usage of the Thompson prosthesis is also in decline, as conversion and revision of the Thompson prosthesis for dislocation, infection, acetabular erosion, and periprosthetic fracture is difficult.…”

Section: Discussionmentioning

confidence: 99%

“…21,22 For the Thompson hemiarthroplasty, dislocation rates range from 0 to 7%. 10,[21][22][23] Early dislocation is associated with high mortality (30-75%). 17,21 Regarding limitations, this study was observational and hence prone to selection bias and confounding by indication.…”

Section: Discussionmentioning

confidence: 99%

Cemented Thompson versus Cemented Bipolar Prostheses for Femoral Neck Fractures

Bauer

Isenegger

Gautschi

et al. 2010

J Orthop Surg (Hong Kong)

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Purpose. To compare early functional outcomes, complications, and mortality in elderly patients treated with the less costly, cemented Thompson prosthesis or the cemented bipolar prosthesis in order to identify factors affecting outcomes. Methods. Records of 303 patients with femoral neck fractures treated with the cemented Thompson monoblock prosthesis (n=206) or the cemented bipolar prosthesis (n=97) were reviewed. The choice of prosthesis was solely determined by surgeon's preference. Data relating to patient demographics, clinical and residential status, mobility, mental function, mortality, and complications during hospitalisation and rehabilitation were collected. Results. After adjusting for confounding variables, independent postoperative indoor mobility was associated with preoperative indoor mobility (p=0.002) and mental function (p=0.001), whereas postoperative outdoor mobility was associated with preoperative outdoor mobility (p=0.003), daily living

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