The effects of different weight-bearing regimes on press-fit cup stability: a randomised study with five years of follow-up using radiostereometry

Wolf, Olof; Mattsson, Per; Milbrink, Jan; Larsson, Sune; Mallmin, Hans

doi:10.1007/s00264-011-1413-5

Cited by 11 publications

(13 citation statements)

References 16 publications

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“…Another limitation of this study is the number of drop-outs. However, the drop-out rate is comparable to those of other RSA studies [ 23 , 24 , 46 – 48 ]. During the crucial period of the first 2 years, that are relevant for RSA-prognosis, eleven patients had to be excluded.…”

Section: Discussionsupporting

confidence: 82%

Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component

Jacobsen

Seehaus

Hong

et al. 2018

BMC Musculoskelet Disord

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BackgroundNon-cemented acetabular cup components demonstrated different clinical performance depending on their surface texture or bearing couple. However, clinical osseointegration needs to be proved for each total joint arthroplasty (TJA) design. Aim of this study was to detect the in vivo migration pattern of a non-cemented cup design, using model-based roentgen stereophotogrammetric analysis with elementary geometrical shape models (EGS-RSA) to calculate early cup migration.MethodsInterchangeable applicability of the model-based EGS-RSA method next to gold standard marker-based RSA method was assessed by clinical radiographs. Afterwards, in vivo acetabular cup migration for 39 patients in a maximum follow up of 120 months (10 years) was calculated using model-based EGS-RSA.ResultsFor the axes with the best predictive capability for acetabular cup loosening, mean (±SD) values were calculated for migration and rotation of the cup. The cup migrated 0.16 (±0.22) mm along the cranio-caudal axis after 24 months and 0.36 (±0.72) mm after 120 months, respectively. It rotated − 0.61 (±0.57) deg. about the medio-lateral axis after 24 months and − 0.53 (±0.67) deg. after 120 months, respectively.ConclusionsInterchangeable applicability of model-based EGS-RSA next to gold standard marker-based RSA method could be shown. Model-based EGS-RSA enables an in vivo migration measurement without the necessity of TJA specific surface models. Migration of the investigated acetabular cup component indicates significant migration values along all the three axes. However, migration values after the second postoperative year were within the thresholds reported in literature, indicating no risk for later aseptic component loosening of this TJA design.

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Section: Discussionsupporting

confidence: 82%

Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component

Jacobsen

Seehaus

Hong

et al. 2018

BMC Musculoskelet Disord

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“…However, no adverse effects of early full weight bearing of uncemented THAs have been described (Bodén and Adolphson 2004, Thien et al 2007, Wolf et al 2012). Moreover, early loading of the THA is not unique to outpatient THA.…”

Section: Discussionmentioning

confidence: 99%

Total hip arthroplasty in an outpatient setting in 27 selected patients

Hartog¹,

Mathijssen²,

Vehmeijer³

2015

Acta Orthopaedica

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Background and purpose — As a result of introduction of a fast-track program, length of hospital stay after total hip arthroplasty (THA) decreased in our hospital. We therefore wondered whether THA in an outpatient setting would be feasible. We report our experience with THA in an outpatient setting.Patients and methods — In this prospective cohort study, we included 27 patients who were selected to receive primary THA in an outpatient setting between April and July 2014. Different patient-reported outcome measures (PROMs) were recorded preoperatively and at 6 weeks and 3 months postoperatively. Furthermore, anchor questions on how patients functioned in daily living were scored at 6 weeks and 3 months postoperatively.Results — 3 of the 27 patients did not go home on the day of surgery because of nausea and/or dizziness. The remaining 24 patients all went home on the day of surgery. PROMs improved substantially in these patients. Moreover, anchor questions on how patients functioned in their daily living indicated that the patients were satisfied with the postoperative results. 1 re-admission occurred at 11 days after surgery because of seroma formation. There were no other complications or reoperations.Interpretation — At our hospital, with a fast-track protocol, outpatient THA was found to be feasible in selected patients with satisfying results up to 3 months postoperatively, without any outpatient procedure-specific complications or re-admissions.

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“…This has been driven by several factors including the development of clinical pathways that have been proven to reduce LOS after elective procedures [7, 9-12, 14, 16, 19, 20], a focus on reduction of healthcare expenditures in the last decade, an increased awareness of complications associated with decreased mobilization, and published studies demonstrating no compromise in outcome with early ''full'' weightbearing and early mobilization in cementless THA [2,21,22].…”

Section: Introductionmentioning

confidence: 99%

Otto Aufranc Award: A Multicenter, Randomized Study of Outpatient versus Inpatient Total Hip Arthroplasty

Goyal

Chen

Padgett

et al. 2017

Clinical Orthopaedics &Amp; Related Research

215

203

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Background Length of stay after total hip arthroplasty (THA) has decreased over the last two decades. However, published studies that have examined same-day and early discharge protocols after THA have been done in highly selected patient groups operated on by senior surgeons in a nonrandomized fashion without control subjects.Questions/purposes The purpose of this study was to evaluate and compare patients undergoing THA who are discharged on the same day as the surgery (''outpatient,'' less than 12-hour stay) with those who are discharged after an overnight hospital stay (''inpatient'') with regard to the following outcomes: (1) postoperative pain; (2) perioperative complications and healthcare provider visits (readmission, One of the authors (AFC) has received research support funding from 3M (Maplewood, MN, USA) and Myoscience (Fremont, CA, USA). One of the authors (WGH) has received research support funding from DePuy (DePuySynthes, New Brunswick, NJ, USA), Biomet (Warsaw, IN, USA), and Nimbic Systems (Stafford, TX, USA). The institution of one or more of the authors (NG, SEP, RHH, WGH) has received, during the study period, funding from the Inova Health System (Falls Church, VA, USA). One of the authors (NG), or a member of his immediate family, has or may receive payments or benefits, during the study period, an amount of USD 10,000 to USD 100,000 from Cayenne Medical (Scottsdale, AZ, USA) and Stryker Orthopedics (Mahwah, NJ, USA). One of the authors (AFC), or a member of her immediate family, has or may receive payments or benefits, during the study period, an amount of less than USD 10,000 from ACI Clinical (Bala Cynwyd, PA, USA). One of the authors (WGH), or a member of his immediate family, has or may receive payments or benefits, during the study period, an amount of USD 10,000 to USD 100,000 from DePuy, Biomet, and Nimbic Systems. One of the authors (WJH), or a member of his immediate family, has or may receive payments or benefits, during the study period, an amount of USD 100,001 to USD 1,000,000 from Stryker. One of the authors (NG) lists the following relevant financial activities outside of this work and/or any other relationships or activities that readers could perceive to have influenced, or that give the appearance of potentially influencing, this manuscript: Data Trace Publishing Company (Towson, MD, USA) in the amount of USD 10,000 to USD 100,000. One of the authors (AFC) lists the following relevant financial activities outside of this work and/or any other relationships or activities that readers could perceive to have influenced, or that give the appearance of potentially influencing, this manuscript: SLACK Incorporated (Thorofare, NJ, USA) in the amount of less than USD 10,000. (3) relative work effort for the surgeon's office staff. Methods A prospective, randomized study was conducted at two high-volume adult reconstruction centers between July 2014 and September 2015. Patients who were younger than 75 years of age at surgery, who could ambulate without a walker, who were n...

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The effects of different weight-bearing regimes on press-fit cup stability: a randomised study with five years of follow-up using radiostereometry

Cited by 11 publications

References 16 publications

Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component

Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component

Total hip arthroplasty in an outpatient setting in 27 selected patients

Otto Aufranc Award: A Multicenter, Randomized Study of Outpatient versus Inpatient Total Hip Arthroplasty

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