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Jud L, Rüedi N, Dimitriou D, Hoch A, Zingg PO. High femoral offset as a risk factor for aseptic femoral component loosening in cementless primary total hip arthroplasty. Int Orthop 2024; 48:1217-1224. [PMID: 38388804 PMCID: PMC11001651 DOI: 10.1007/s00264-024-06116-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/02/2024] [Indexed: 02/24/2024]
Abstract
PURPOSE Lateralized stems in primary cementless total hip arthroplasty (THA) showed to be associated with aseptic femoral loosening. However, femoral head length also affects femoral offset but was not considered so far. This study analyzed the impact of high femoral offset (hFO) combinations, formed by lateralized stems or large femoral head lengths, on aseptic femoral component loosening. METHODS Retrospective cohort study was performed including all patients that underwent primary cementless THA at our institution between July 2004 and December 2016. Patients were screened for aseptic femoral component loosening and grouped in aseptic loosening (AL) and non-aseptic loosening (nAL) group. Medical records were screened; implant details were noted and classified in hFO and standard femoral offset (sFO) combinations. Supposed risk factors for aseptic loosening were analyzed. RESULTS Two thousand four hundred fifty-nine THA could be included, containing 14 THA (0.6%) with aseptic femoral component loosening. The AL group contained 11 hFO combinations (78.6%), whereas in the nAL group, 1315 hFO combinations (53.8%) were used. Subgroup analysis showed significant difference between two groups for hFO combinations (p = 0.014), age (p = 0.002), NSAR (p = 0.001), and bilateral THA on same day (p = 0.001). The multiple logistic regression analysis showed that hFO combination was the only variable for increased probability of aseptic loosening (OR, 3.7; p = 0.04). CONCLUSION High femoral offset combinations, formed by lateralized stems or large femoral head lengths in our collective of standard straight stems implanted by an anterior approach, show a 3.7-fold increased probability for aseptic femoral component loosening. Adjustment of the postoperative protocol may be considered in these cases to ensure proper stem ingrowth.
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Affiliation(s)
- Lukas Jud
- Balgrist University Hospital, Department of Orthopedics, University of Zurich, Forchstrasse 340, 8008, Zürich, Switzerland.
| | - Nico Rüedi
- Balgrist University Hospital, Department of Orthopedics, University of Zurich, Forchstrasse 340, 8008, Zürich, Switzerland
| | - Dimitris Dimitriou
- Balgrist University Hospital, Department of Orthopedics, University of Zurich, Forchstrasse 340, 8008, Zürich, Switzerland
| | - Armando Hoch
- Balgrist University Hospital, Department of Orthopedics, University of Zurich, Forchstrasse 340, 8008, Zürich, Switzerland
| | - Patrick O Zingg
- Balgrist University Hospital, Department of Orthopedics, University of Zurich, Forchstrasse 340, 8008, Zürich, Switzerland
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Sai Sathikumar A, Jacob G, Thomas AB, Varghese J, Menon V. Acetabular cup positioning in primary routine total hip arthroplasty-a review of current concepts and technologies. Arthroplasty 2023; 5:59. [PMID: 38037156 PMCID: PMC10691035 DOI: 10.1186/s42836-023-00213-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/15/2023] [Indexed: 12/02/2023] Open
Abstract
INTRODUCTION Total hip arthroplasty (THA) has revolutionized the treatment of hip joint arthritis. With the increased popularity and success of the procedure, research has focused on improving implant survival and reducing surgical complications. Optimal component orientation has been a constant focus with various philosophies proposed. Regardless of the philosophy, achieving an accurate acetabular position for each clinical scenario is crucial. In this paper, we review the recent developments in improving the accuracy and ideal positioning of the acetabular cup in routine primary THA. METHODOLOGY A review of the recent scientific literature for acetabular cup placement in primary THA was performed, with available evidence for safe zones, spinopelvic relationship, preoperative planning, patient-specific instrumentation, navigation THA and robotic THA. CONCLUSION Though the applicability of Lewinnek safe zones has been questioned with an improved understanding of spinopelvic relationships, its role remains in positioning the acetabular cup in a patient with normal spinopelvic alignment and mobility. Evaluation of spinopelvic relationships and accordingly adjusting acetabular anteversion and inclination can significantly reduce the incidence of dislocation in patients with a rigid spine. In using preoperative radiography, the acetabular inclination, anteversion and intraoperative pelvic position should be evaluated. With improving technology and the advent of artificial intelligence, superior and more accurate preoperative planning is possible. Patient-specific instrumentation, navigated and robotic THA have been reported to improve accuracy in acetabular cup positioning as decided preoperatively but any significant clinical advantage over conventional THA is yet to be elucidated.
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Affiliation(s)
- Aravind Sai Sathikumar
- Division of Joint Replacement and Sports Medicine, VPS Lakeshore Hospital: Lakeshore Hospital and Research Centre Ltd, Kochi, Kerala, 682040, India.
| | - George Jacob
- Division of Joint Replacement and Sports Medicine, VPS Lakeshore Hospital: Lakeshore Hospital and Research Centre Ltd, Kochi, Kerala, 682040, India
| | - Appu Benny Thomas
- Division of Joint Replacement and Sports Medicine, VPS Lakeshore Hospital: Lakeshore Hospital and Research Centre Ltd, Kochi, Kerala, 682040, India
| | - Jacob Varghese
- Division of Joint Replacement and Sports Medicine, VPS Lakeshore Hospital: Lakeshore Hospital and Research Centre Ltd, Kochi, Kerala, 682040, India
| | - Venugopal Menon
- Department of Orthopaedics, Bharati Vidyapeeth Deemed University, Pune, Maharashtra, 411043, India
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Arraut J, Thomas J, Oakley C, Schmicker T, Aggarwal VK, Schwarzkopf R, Rozell JC. Effects of Dexamethasone on Postoperative Glycemic Control in Diabetic Patients Following Primary Total Joint Arthroplasty: A Retrospective Cohort Study. J Arthroplasty 2023:S0883-5403(23)00348-0. [PMID: 37040822 DOI: 10.1016/j.arth.2023.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 03/24/2023] [Accepted: 04/03/2023] [Indexed: 04/13/2023] Open
Abstract
INTRODUCTION Concerns regarding the effects of dexamethasone on diabetics' glucose control have stymied its use following total joint arthroplasty (TJA). This study aimed to evaluate the effects of two intravenous (IV) perioperative doses of dexamethasone on glucose levels, pain scores, and inpatient opioid consumption following TJA in diabetic patients. METHODS A retrospective review of 523 diabetic patients who underwent primary elective THA and 953 diabetic patients who underwent primary elective TKA between May 6, 2020 and December 17, 2021. Patients who received one dose (1D) of perioperative dexamethasone 10 mg IV were compared to patients who received two doses (2D). Primary outcomes included postoperative glucose levels, opioid consumption as morphine milligram equivalences (MMEs), postoperative pain as Verbal Rating Scale (VRS) pain scores, and postoperative complications. RESULTS The 2D TKA cohort had significantly greater average and maximum blood glucose levels from 24 to 60 hours compared to the 1D TKA cohort. The 2D THA cohort had significantly greater average blood glucose levels at 24 to 36 hours compared to the 1D THA cohort. However, the 2D TKA group had significantly reduced opioid consumption from 24 to 72 hours and reduced total consumption compared to the 1D TKA group. VRS pain scores did not differ between cohorts for both TKA and THA at any interval. CONCLUSION Administration of a second perioperative dose of dexamethasone was associated with increased postoperative blood glucose levels. However, the observed effect on glucose control may not outweigh the clinical benefits of a second perioperative dose of glucocorticoids.
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Affiliation(s)
- Jerry Arraut
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Jeremiah Thomas
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Christian Oakley
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Thomas Schmicker
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Vinay K Aggarwal
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Ran Schwarzkopf
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Joshua C Rozell
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York.
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Soleimani M, Babagoli M, Baghdadi S, Mirghaderi P, Fallah Y, Sheikhvatan M, Shafiei SH. Return to work following primary total hip arthroplasty: a systematic review and meta-analysis. J Orthop Surg Res 2023; 18:95. [PMID: 36782319 PMCID: PMC9926652 DOI: 10.1186/s13018-023-03578-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Total hip arthroplasty (THA) is increasingly common in younger patients, who are more likely to be working preoperatively. There is a need for an updated review of the literature regarding the rate and time to return to work (RTW), which is important when counseling patients, and also from an economic standpoint. METHODS A systematic review and meta-analysis of the literature was performed on January 20, 2022, and studies reporting the rate and/or time to RTW after THA were included. Two authors independently selected relevant papers. RTW was extracted and analyzed using fixed-effects or random-effects models where appropriate. RESULTS A total of 48 studies were included in the final analysis. We found that 70.7% of patients were working after primary THA. Among patients who were working before surgery, this rate increases to 87.9%, while 28.1% of patients who were not working preoperatively started working after surgery. Younger patients were more likely to RTW, while patients with a physically demanding job were less likely to RTW. Minimally invasive techniques were reported to yield a higher rate of RTW and an earlier time to RTW. CONCLUSION We found that the majority of patients return to work after THA, and some patients are able to start working after surgery. Compared to previous reviews, patients seem to have a higher rate and earlier RTW. The overall trend of the literature suggests that patients are returning to work earlier and at a higher rate compared to previous reviews.
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Affiliation(s)
- Mohammad Soleimani
- grid.411705.60000 0001 0166 0922Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mazyar Babagoli
- grid.411705.60000 0001 0166 0922Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Soroush Baghdadi
- grid.240283.f0000 0001 2152 0791Pediatric Orthopaedic Surgery Department, Montefiore Medical Center, New York, USA
| | - Peyman Mirghaderi
- grid.411705.60000 0001 0166 0922Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Fallah
- grid.411705.60000 0001 0166 0922Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Sheikhvatan
- grid.411705.60000 0001 0166 0922Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyyed Hossein Shafiei
- Orthopedic Surgery Research Centre( OSRC), Sina University Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Edwards NM, Varnum C, Nelissen RGHH, Overgaard S, Pedersen AB. The association between socioeconomic status and the 30- and 90-day risk of infection after total hip arthroplasty : a registry-based cohort study of 103,901 patients with osteoarthritis. Bone Joint J 2022; 104-B:221-226. [PMID: 35094583 DOI: 10.1302/0301-620x.104b2.bjj-2021-1030.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AIMS The aim of this study was to examine whether socioeconomic status (SES) is associated with a higher risk of infections following total hip arthroplasty (THA) at 30 and 90 days. METHODS We obtained individual-based information on SES markers (cohabitation, education, income, and savings) on 103,901 THA patients from Danish health registries between 1 January 1995 and 31 December 2017. The primary outcome measure was any hospital-treated infection (i.e. all infections). The secondary outcomes were further specified to specific hospital-treated infections (pneumonia, urinary tract infection, and periprosthetic joint infection). The primary timepoint was within 90 days. In addition, the outcomes were further evaluated within 30 days. We calculated the cumulative incidence, and used the pseudo-observation method and generalized linear regression to estimate adjusted risk ratios (RRs) with 95% confidence intervals (CIs) for each marker. RESULTS The cumulative incidence of any infection at 90 days was highest in patients who lived alone (1.5% (95% CI 1.3 to 1.6)) versus cohabitant (0.7% (95% CI 0.7 to 0.8)), had the lowest educational achievement (1.1% (95% CI 1.0 to 1.2)) versus highest (0.7% (95% CI 0.5 to 0.8)), had the lowest income (1.6% (95% CI 1.5 to 1.70)) versus highest (0.4% (95% CI 0.3 to 0.5)), or had lowest savings (1.3% (95% CI 1.2 to 1.4)) versus highest (0.7% (95% CI 0.6 to 0.8)). Within 90 days, the RRs for any infection were 1.3 (95% CI 1.2 to 1.4) for patients living alone versus cohabiting, 1.2 (95% CI 1.0 to 1.3) for low education achievement versus high, 1.7 (95% CI 1.4 to 2.1) for low income versus high income, and 1.5 (95% CI 1.4 to 1.8) for low savings versus high savings. The same trends were also seen for any infections within the first 30 days. CONCLUSION Our study provides evidence that socioeconomic inequality adversely influences the risk of infection after THA, thus contributing to healthcare disparities and inequalities. We found that living alone, low educational achievement, low income, or low savings were associated with higher risks of infections within the first 30 and 90 days after THA. Therefore, the development of targeted intervention strategies with the aim of increasing awareness of patients identified as being at greatest risk is needed to mitigate the impact of SES on the risk of infections following THA. Cite this article: Bone Joint J 2022;104-B(2):221-226.
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Affiliation(s)
- Nina M Edwards
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Claus Varnum
- Department of Orthopaedic Surgery, Lillebaelt Hospital, Vejle, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Department of Orthopaedic Surgery and Traumatology, Odense Universitetshospital, Odense, Denmark.,Danish Hip Arthroplasty Register, Copenhagen, Denmark
| | - Rob G H H Nelissen
- Department of Orthopaedics, Leids Universitair Medisch Centrum, Leiden, Netherlands
| | - Søren Overgaard
- Danish Hip Arthroplasty Register, Copenhagen, Denmark.,Copenhagen University Hospital, Bispebjerg Department of Orthopaedic Surgery and Traumatology, Frederiksberg Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Alma B Pedersen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
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Andah G, Hume E, Nelson C, Lee GC. Does timing of lumbar fusion affect dislocation rate after total hip arthroplasty? J Orthop 2021; 27:145-8. [PMID: 34629788 DOI: 10.1016/j.jor.2021.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/27/2021] [Accepted: 09/19/2021] [Indexed: 11/20/2022] Open
Abstract
Introduction The impact of lumbar spinal fusion (LSF) on pelvic mobility and increased risk for THA dislocation are recognized. However, there is still controversy on whether THA should be performed prior or following LSF. This study aims to compare the rates of hip dislocation in patients undergoing THA prior to or following LSF. Methods We retrospectively reviewed 109 primary THA and LSF. There were 34 men and 75 women with a mean age of 66.9. The cohort was divided into 2 groups: 1) THA prior to lumbar fusion (n = 42) and 2) THA following lumbar fusion (n = 67). Radiographic parameters including acetabular component abduction, anteversion, pelvic incidence (PI), sacral slope, standing lumbar lordosis (LL) and PI-LL mismatch were determined for each patient. The surgical approach and THA parameters were also recorded and compared between the 2 groups. Patients with fracture, malignant disease, and prior hip hardware were excluded. Results The mean follow up was 14.7 months. Overall, 8 patients (7.3%) had a postoperative hip dislocation (0 in group 1 (0%), and 8 in group 2 (11.9%) (p = 0.022). The mean cup abduction and anteversion in patients that dislocated was 37.7° and 23.4° respectively while patients who did not dislocate had an average cup abduction of 37.6° (p = 0.970) and anteversion of 25.9° (p = 0.367). Patients who dislocated had decreased lumbar lordosis (p = 0.022) and higher PI-LL mismatch (p = 0.0004) compared to that did not dislocate. There were no other significant differences in the spinopelvic parameters between the 2 groups. Neither surgical approach nor dual mobility articulations use had a significant impact on postoperative dislocations. Conclusion Higher rates of hip dislocation were observed in patients undergoing primary THA following LSF. Dislocators had decreased lumbar lordosis and increased PI-LL mismatch. Patients who require both spinal fusion and THA should undergo hip arthroplasty first to minimize the risk of postoperative instability.
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Berndt K, Rahm S, Dora C, Zingg PO. Total hip arthroplasty with accolade/trident through the direct minimally invasive anterior approach without traction table: Learning curve and results after a minimum of 5 years. Orthop Traumatol Surg Res 2019; 105:931-936. [PMID: 31255503 DOI: 10.1016/j.otsr.2019.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 02/24/2019] [Accepted: 05/02/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The direct minimally invasive anterior approach (DMIAA) in total hip arthroplasty (THA) is widely accepted. In our department the DMIAA according to Rachbauer together with the Trident cup and Accolade stem was introduced in 2004. The purpose of the study was to demonstrate the five-year results and to analyze the learning curve of a new introduced approach. PATIENTS AND METHODS Between July 2004 and May 2006, a consecutive series of 151 THA in 147 patients was retrospectively analyzed. All patients were planned to received a THA with the Accolade/Trident implant system using the DMIAA without traction table. Clinical and radiographic data, complications and survivorship were documented with a follow-up of at least 5 years. RESULTS Regarding cup implantation, there were 11 (7.3%) failed intentions to treat due to missing pressfit (8 cases) and acetabular floor perforation (3 cases). No failed intentions to treat occurred during stem implantation. Total implant survival after 5 years follow-up after exclusion of 11 cases with failed intention to treat (N=140) was 96.9% (SD 1.4; CI 94.3-99.6). After exclusion of the failed intentions to treat (N=140, N=4 in the first 20 cases), there was significant (p<0.001) difference between the first 16 implants with a 5 year-survival of 83.2% (SD 8.6; CI 66.4-100) and 95.7% (SD 0.9; CI 93.9-97.5) for the following 124 implants. Radiolucent lines were observed in Gruen zone 1 in 3.3% and in Gruen zone 1 and 2 in 1.1%. DISCUSSION THA with Accolade/Trident using the DMIAA without traction table according to Rachbauer temporary exposed patients to a higher risk of implant revisions, which was normalized after the first 20 cases. Results of the learning curve are comparable to other techniques using an orthopaedic traction table. After the typical learning curve, the rate of 5 years implant failure is in accordance with the registry data for non-cemented implants. The Accolade stem showed minimal radiographic signs of radiolucency. LEVEL OF EVIDENCE IV, retrospective, consecutive case series.
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Affiliation(s)
- Kersten Berndt
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, 8008 Zurich, Switzerland
| | - Stefan Rahm
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, 8008 Zurich, Switzerland.
| | - Claudio Dora
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, 8008 Zurich, Switzerland
| | - Patrick O Zingg
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, 8008 Zurich, Switzerland
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Schwarze M, Budde S, von Lewinski G, Windhagen H, Keller MC, Seehaus F, Hurschler C, Floerkemeier T. No effect of conventional vs. minimally invasive surgical approach on clinical outcome and migration of a short stem total hip prosthesis at 2-year follow-up: A randomized controlled study. Clin Biomech (Bristol, Avon) 2018; 51:105-112. [PMID: 29287171 DOI: 10.1016/j.clinbiomech.2017.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 11/30/2017] [Accepted: 12/08/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Michael Schwarze
- Laboratory for Biomechanics and Biomaterials, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany.
| | - Stefan Budde
- Department of Orthopaedic Surgery, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Gabriela von Lewinski
- Department of Orthopaedic Surgery, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Henning Windhagen
- Department of Orthopaedic Surgery, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Marie Christina Keller
- Laboratory for Biomechanics and Biomaterials, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Frank Seehaus
- Laboratory for Biomechanics and Biomaterials, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Christof Hurschler
- Laboratory for Biomechanics and Biomaterials, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Thilo Floerkemeier
- Department of Orthopaedic Surgery, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
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Louboutin L, Viste A, Desmarchelier R, Fessy MH. Long-term survivorship of the Corail™ standard stem. Orthop Traumatol Surg Res 2017; 103:987-992. [PMID: 28778624 DOI: 10.1016/j.otsr.2017.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/11/2017] [Accepted: 06/19/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The Corail™ stem, which was first introduced in 1986, has since been modified twice: first to make the neck thinner and then to change the location of the laser markings. The survival and complications of the first-generation straight, titanium, hydroxyapatite-coated stem are known; however, there is little specific information about the latest-generation stem. This led us to conduct a retrospective study to determine the: (1) long-term survival; (2) clinical and radiographic outcomes; (3) complications; and (4) risk factors for revision of the newest Corail™ stem. HYPOTHESIS The newest Corail™ AMT (Articul/EZE™ Mini Taper) standard stem has comparable survival to prior models. PATIENTS AND METHODS This single-center, retrospective study included 133 patients (140 hips), who underwent primary total hip arthroplasty (THA), between January and December 2004, in which a Corail™ Standard stem was implanted using a posterolateral approach. Patients who underwent revision THA, THA due to femoral neck fracture or who received lateralized (offset) stems were excluded. The mean age at the time of THA was 69±13 years [35-92] in 85 men (61%) and 55 women (39%) who had a mean BMI of 27kg/m2±11 [16-39]. At the latest follow-up, 32 patients (32 hips) had died and 8 patients (8 hips) had less than 3 years' follow-up, thus were not included in the clinical evaluation. The Merle d'Aubigné (PMA) score was collected. The stem's survivorship was calculated using the Kaplan-Meier method with revision for aseptic loosening and revision or implant removal for any reason as the end-points. The Cox model was used to analyze risk factors for revision. The mean follow-up was 10±3 years [3-12]. RESULTS The PMA score was 12±2.6 [5-17] preoperatively and 16±2.7 [7-18] at the last follow-up (P<0.00001). Eighteen complications (12.8%) were recorded at the last follow-up. There were 15 early complications: 6 dislocations, 5 calcar fractures (4 treated by wire cerclage and 1 by stem change plus wire cerclage), 2 greater trochanter fractures (treated non-surgically) and 2 cases of sciatic nerve palsy. There were 3 late complications: 2 cases of iliopsoas irritation and 1 ceramic insert fracture. Stem survival for surgical revision due to aseptic loosening was 98% (95% CI: [0.96-1]). At 12 years, 95% of stems had not been revised or removed (95% CI: [0.92-0.99]). Being less than 58 years of age at the time of surgery was the only risk factor significantly associated with stem revision for any reason (P=0.04). CONCLUSION Survival of the Corail™ Standard stem is similar to that of previous generation stems. The changes made in this stem solved the neck failure problem and did not induce new complications. LEVEL OF EVIDENCE Level IV (retrospective study).
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Affiliation(s)
- L Louboutin
- Service de chirurgie orthopédique et traumatologique, hospices civils de Lyon, centre hospitalier Lyon-Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite cedex, France
| | - A Viste
- Service de chirurgie orthopédique et traumatologique, hospices civils de Lyon, centre hospitalier Lyon-Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite cedex, France; Université de Lyon, 69622 Lyon, France; Université Claude Bernard Lyon 1, 43, boulevard du 11 Novembre, 69100 Villeurbanne, France; IFSTTAR, UMRT_9406, laboratoire de biomécanique et mécanique des Chocs, 25, avenue Mitterrand, 69500 Bron, France.
| | - R Desmarchelier
- Service de chirurgie orthopédique et traumatologique, hospices civils de Lyon, centre hospitalier Lyon-Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite cedex, France; Université de Lyon, 69622 Lyon, France; Université Claude Bernard Lyon 1, 43, boulevard du 11 Novembre, 69100 Villeurbanne, France; IFSTTAR, UMRT_9406, laboratoire de biomécanique et mécanique des Chocs, 25, avenue Mitterrand, 69500 Bron, France
| | - M-H Fessy
- Service de chirurgie orthopédique et traumatologique, hospices civils de Lyon, centre hospitalier Lyon-Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite cedex, France; Université de Lyon, 69622 Lyon, France; Université Claude Bernard Lyon 1, 43, boulevard du 11 Novembre, 69100 Villeurbanne, France; IFSTTAR, UMRT_9406, laboratoire de biomécanique et mécanique des Chocs, 25, avenue Mitterrand, 69500 Bron, France
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