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Ohta Y, Sugama R, Minoda Y, Mizokawa S, Takahashi S, Ikebuchi M, Nakatsuchi T, Nakamura H. Highly Porous Titanium Cups Frequently Presenting with Radiolucent Lines in Cementless Primary Total Hip Arthroplasty: A Retrospective Cohort Study. J Clin Med 2024; 13:3297. [PMID: 38893007 PMCID: PMC11173321 DOI: 10.3390/jcm13113297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024] Open
Abstract
Background/Objectives: A highly porous titanium cup with a three-dimensional metal interface was recently introduced to improve biological fixation and survival. However, radiography has revealed concerns regarding these cups, despite their excellent short- and mid-term clinical outcomes. This study compared the clinical and radiographic results of a highly porous titanium cup with those of a hydroxyapatite-coated porous titanium cup after primary total hip arthroplasty (THA). Methods: Fifty-one primary THAs were investigated. A highly porous titanium cup was used in 17 hips, and a hydroxyapatite-coated porous titanium cup was used in 34 hips. No significant differences in preoperative patient demographic characteristics were observed between the two groups. The 2-year postoperative clinical and radiographic results were compared. Results: Radiolucent lines were observed in 13 (76%) of 17 hips with highly porous titanium cups and in none (0%) of 34 hips with hydroxyapatite-coated porous titanium cups (p < 0.001). In the highly porous titanium cup group, radiolucent lines were observed in five hips (29%) in one zone, two hips (11%) in two zones, and six hips (35%) in three zones. No cup loosening was observed in either group. Conclusions: Radiolucent lines were significantly more frequent in highly porous titanium cups. This study suggests that, compared to the three-dimensional structure of porous titanium, the hydroxyapatite coating of porous titanium had a greater influence on bone ingrowth in the short term. The meaning of these findings in the long-term is unclear yet.
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Affiliation(s)
- Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Ryo Sugama
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Yukihide Minoda
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Shigekazu Mizokawa
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Shinji Takahashi
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Mitsuhiko Ikebuchi
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
| | - Tamotsu Nakatsuchi
- Tsuji-geka Rehabilitation Hospital, 3-24 Ikutamamaemachi, Tennnouji-ku, Osaka 543-0072, Japan;
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan; (R.S.); (Y.M.); (S.M.); (S.T.); (M.I.); (H.N.)
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Richardson VR, Chong ACM, Brown AN. Biomechanical Comparison of Impaction Techniques and Cross-Sectional Femoral Stem Shapes for Cementless Total Hip Arthroplasty. Kans J Med 2024; 17:30-33. [PMID: 38694181 PMCID: PMC11060782 DOI: 10.17161/kjm.vol17.21522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/26/2024] [Indexed: 05/04/2024] Open
Abstract
Introduction Traditional mallet broaching and stem seating in cementless total hip arthroplasty (THA) can result in femoral stem misalignment, potentially reducing implant longevity. This study aimed to compare the pullout strength of cementless THA femoral stems with different cross-sectional designs achieved through the powered impactor method versus the traditional mallet method. Methods The authors utilized 24 polyurethane foam femurs and two femoral bone preservation stems with different proximal cross-sectional shapes (double taper: ACTIS®, size 5; flat taper: TRI-LOCK®, size 5). A single orthopedic surgeon broached each femur from size 0 to size 5 using either the powered impactor or mallet impaction methods. Broaching time and component implantation times were recorded. A load-to-failure pullout strength test was conducted, and the ultimate pullout load was recorded. Results The broaching time for the TRI-LOCK® stem showed a statistically significant difference between the two impaction methods (powered: 37±7 seconds, mallet: 75±29 seconds, F[3, 20] = 4.56, p = 0.002), but no statistically significant difference was detected for the ACTIS® stem between the two impaction methods (powered: 47±22 seconds, mallet: 59±9 seconds, F[3, 20] = 4.56, p = 0.304). There was a statistically significant difference in pullout strength between the two impaction groups, and this strength was influenced by the implant cross-sectional shape (ACTIS®: 774±75N versus 679±22N, F(3,20) = 16.38, p = 0.018; TRI-LOCK®: 616±57N versus 859±85N, F(3, 20) = 16.38, p <0.001). Conclusions The technique used for femoral bone preparation (powered impactor versus mallet) and the cross-sectional design of the cementless femoral stem are crucial factors that affect initial stem stability and operation time.
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Affiliation(s)
- Vanessa R Richardson
- Department of Sanford Medical Education, Sanford Health, Fargo, ND
- School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND
| | - Alexander C M Chong
- Department of Sanford Medical Education, Sanford Health, Fargo, ND
- School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND
| | - Anthony N Brown
- Department of Sanford Medical Education, Sanford Health, Fargo, ND
- School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND
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Yoshida K, Fukushima K, Sakai R, Uchiyama K, Takahira N, Ujihira M. A novel primary stability test method for artificial acetabular shells considering vertical load during level walking and shell position. PLoS One 2024; 19:e0296919. [PMID: 38421998 PMCID: PMC10903903 DOI: 10.1371/journal.pone.0296919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/22/2023] [Indexed: 03/02/2024] Open
Abstract
Uncemented acetabular shell primary stability is essential for optimal clinical outcomes. Push-out testing, rotation testing, and lever-out testing are major evaluation methods of primary stability between the shell and bone. However, these test methods do not consider shell loads during daily activity and shell installation angle. This study proposes a novel evaluation method of acetabular shell primary stability considering load during level walking and acetabular installation angles such as inclination and anteversion. To achieve this, a novel primary stability test apparatus was designed with a shell position of 40° acetabular inclination and 20° anteversion. The vertical load, corresponding to walking load, was set to 3 kN according to ISO 14242-1, which is the wear test standard for artificial hip joints. The vertical load was applied by an air cylinder controlled by a pressure-type electro-pneumatic proportional valve, with the vertical load value monitored by a load cell. Torque was measured when angular displacement was applied in the direction of extension during the application of vertical load. For comparison, we also measured torque using the traditional lever-out test. The novel primary stability test yielded significantly higher primary stabilities; 5.4 times greater than the lever-out test results. The novel primary stability test failure mode was more similar to the clinical failure than the traditional lever-out test. It is suggested that this novel primary stability test method, applying physiological walking loads and extension motions to the acetabular shell, better reflects in vivo primary stability than the traditional lever-out test.
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Affiliation(s)
- Kazuhiro Yoshida
- Department of Medical Engineering and Technology, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Kensuke Fukushima
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Rina Sakai
- Department of Medical Engineering and Technology, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Katsufumi Uchiyama
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Naonobu Takahira
- Department of Orthopaedic Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Masanobu Ujihira
- Department of Medical Engineering and Technology, Kitasato University, Sagamihara, Kanagawa, Japan
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Polus JS, Vasarhelyi EM, Lanting BA, Teeter MG. Acetabular cup fixation with and without screws following primary total hip arthroplasty: migration evaluated by radiostereometric analysis. Hip Int 2024; 34:42-48. [PMID: 37016808 PMCID: PMC10787387 DOI: 10.1177/11207000231164711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 02/25/2023] [Indexed: 04/06/2023]
Abstract
BACKGROUND Early cup migration after total hip arthroplasty (THA) is correlated to late revision due to aseptic loosening. However, the use of screws for increased cup stability remains unclear and debated. The purpose of this study is to assess acetabular migration between cups fixated with and without the use of screws. METHODS Patients underwent primary THA using either a direct anterior (DA) or a direct lateral (DL) approach. The DA surgeon routinely supplemented cup fixation with 1 or 2 screws while the DL surgeon used no screws. At 7 follow-up visits up to 2 years post operation, patients underwent radiostereometric analysis (RSA) imaging for implant migration tracking. The primary outcome was defined as proximal cup migration measured with model-based RSA. RESULTS 68 patients were assessed up to 2 years post operation, n = 43 received screws and n = 25 did not. The use of screws had a significant effect on cup migration (p = 0.018). From 2 weeks to 2 years post operation, the total mean migration was 0.403 ± 0.681 mm and 0.129 ± 0.272 mm (p = 0.319) for cups with and without screws, respectively. The number of screws used also had a significant impact, with cups fixated with 1 screw migrating more than cups fixated with 2 (p = 0.013, mean difference 0.712 mm). CONCLUSIONS Acetabular cups fixated with only 1 screw resulted in greater migration than cups with no screws or 2 screws, though the mean magnitude was well under the 1.0 mm threshold for unacceptable migration. However, 3 of the 24 patients who received only 1 screw exceeded the 1.0 mm threshold for unacceptable migration. Ultimately, the results of this study show that the use of 2 screws to supplement cup fixation can provide good implant stability that is equivalent to a secure press-fit component with no screws.Clinical trial registration: ClinicalTrials.gov (NCT03558217).
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Affiliation(s)
- Jennifer S Polus
- School of Biomedical Engineering, Western University, London, Ontario, Canada
- Imaging Research Laboratories, Robarts Research Institute, Western University, London, Ontario, Canada
- School of Biomedical Engineering, Collaborative Specialization in Musculoskeletal Health Research, and Bone and Joint Institute, Western University, Canada
| | - Edward M Vasarhelyi
- Division of Orthopaedic Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Brent A Lanting
- Division of Orthopaedic Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Matthew G Teeter
- School of Biomedical Engineering, Western University, London, Ontario, Canada
- Imaging Research Laboratories, Robarts Research Institute, Western University, London, Ontario, Canada
- School of Biomedical Engineering, Collaborative Specialization in Musculoskeletal Health Research, and Bone and Joint Institute, Western University, Canada
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
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Marchand RC, Marchand K, Taylor K, Guerrieo Z, Hameed D, Bains SS, Dubin JA, Sodhi N, Mont MA. Patient-reported and radiographic outcomes of a porous-coated acetabular cup in robotic assisted total hip arthroplasty at 2-year follow up. J Orthop 2023; 46:78-82. [PMID: 37969228 PMCID: PMC10643097 DOI: 10.1016/j.jor.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/14/2023] [Accepted: 10/04/2023] [Indexed: 11/17/2023] Open
Abstract
Introduction Several implant manufacturers have developed ultra-porous metal substrate acetabular components recently. Despite this, data on clinical and radiographic outcomes remain limited. Our study evaluated postoperative patient-reported outcome measures (PROMs) and radiographic analyses in patients fitted with a novel acetabular porous-coated component. Methods A total of 152 consecutive patients underwent a total hip arthroplasty by a single orthopaedic surgeon. All patients underwent surgery utilizing the same CT-scan based robotic-assisted device with the same porous cementless acetabular shell. They received standardized postoperative physical therapy, rehabilitation, and pain protocols. Preoperatively, first postoperative visit, 6-months, 1-year, and 2-years, patients were evaluated based on Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain, physical function, and total scores; 2) Patient-Reported Outcomes Measurement Information System (PROMIS)-10 physical and mental scores; 3) Hip Disability and Osteoarthritis Outcome Score (HOOS)-Jr scores; as well as 4) acetabular component positions and 5) evidence of acetabular component loosening. Results Significant improvements were observed by 6 months in WOMAC pain, physical function, and total scores (p < 0.05), maintained at 1 and 2 years. PROMIS-10 physical scores also improved significantly from preoperative to 6 months postoperative and remained so at 1 and 2 years postoperative (p < 0.05). No significant changes were found in PROMIS-10 mental scores. HOOS-Jr scores significantly improved from preoperative to 6 months postoperative and remained so through 2 years (p < 0.05). At 6 months, slight changes were noted in abduction angle and horizontal and vertical offset. Radiolucencies, initially found in 3 shells, reduced to 1 shell with 2 new radiolucencies by 6 months, and remained stable with no subsequent operative interventions. At 1 year and 2 years, no radiographic abnormalities were noted, including complete resolution of prior radiolucencies as well as stable components. Conclusion This porous cementless acetabular shell, implanted with CT-scan-based robotic-assisted techniques, demonstrated excellent postoperative PROMs at 2 years. Stable radiolucencies suggest good component stability. The early stable clinical and radiographic results suggest promising long-term outcomes with this device. Level of evidence III (retrospective cohort study).
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Affiliation(s)
- Robert C. Marchand
- South County Orthopaedics, Orthopaedics Rhode Island, Wakefield, RI, USA
| | - Kevin Marchand
- Northwell Health Orthopedics, Lenox Hill Hospital, New York, NY, USA
| | - Kelly Taylor
- South County Orthopaedics, Orthopaedics Rhode Island, Wakefield, RI, USA
| | - Zachary Guerrieo
- South County Orthopaedics, Orthopaedics Rhode Island, Wakefield, RI, USA
| | - Daniel Hameed
- LifeBridge Health, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, MD, USA
| | - Sandeep S. Bains
- LifeBridge Health, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, MD, USA
| | - Jeremy A. Dubin
- LifeBridge Health, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, MD, USA
| | - Nipun Sodhi
- Department of Orthopaedic Surgery, Lenox Hill Hospital Northwell Health, New York, NY, USA
| | - Michael A. Mont
- LifeBridge Health, Sinai Hospital of Baltimore, Rubin Institute for Advanced Orthopedics, Baltimore, MD, USA
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Sugimine Y, Nakano S, Goto H, Sato R, Enishi T, Goto T, Sairyo K. Middle-term outcome and complications after primary total hip arthroplasty using a contemporary titanium tapered wedge cementless femoral stem. THE JOURNAL OF MEDICAL INVESTIGATION 2023; 70:471-475. [PMID: 37940534 DOI: 10.2152/jmi.70.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The purpose of this study is to evaluate the results and intraoperative or postoperative complications of primary total hip arthroplasty (THA) using a contemporary tapered wedge titanium femoral component. A total of 213 THAs in 187 patients were followed up more than 5 years (mean, 102 months ; range, 60-150). The mean age at surgery was 64.2 years (range, 20?89 years). These patients were clinically evaluated using the JOA scoring system and radiographically host bone reactions around the implants, as well as femoral loosening. The mean JOA score improved from 49 (range, 21?75) to 92 (range, 59?100). All 12 patients with poor results (JOA < 75) coexisted with cerebral, spinal, joint, and musculoskeletal disorders. At the final follow-up, implant survival was 100%. Complications occurred in 23 hips. They consisted of 12 hips with intra-operative fractures, 2 hips with sciatic nerve palsy, one hip with infections, 3 hips with recurrent dislocations, and 8 hips with aseptic cup loosening. In conclusion, we have shown excellent survival rate of the contemporary tapered wedge stem in primary THA ; however, patients with coexisting diseases could not acquire sufficient improvement in hip function and ambulatory ability. J. Med. Invest. 70 : 471-475, August, 2023.
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Affiliation(s)
- Yuto Sugimine
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Shunji Nakano
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Hitoshi Goto
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Ryosuke Sato
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Tetsuya Enishi
- Department of Rehabilitation Medicine, Tokushima Municipal Hospital, Tokushima, Japan
| | - Tomohiro Goto
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Wu J, Lin X, Qiao H, Zhao J, Ding W, Zhu R. Microstructural Evolution and Surface Mechanical Properties of the Titanium Alloy Ti-13Nb-13Zr Subjected to Laser Shock Processing. MATERIALS (BASEL, SWITZERLAND) 2022; 16:ma16010238. [PMID: 36614576 PMCID: PMC9822224 DOI: 10.3390/ma16010238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 06/12/2023]
Abstract
As a progressive surface-hardening technology, laser shock processing (LSP) can enhance the mechanical properties and extend fatigue life for metallic components through laser-generated high-pressure plasma shock waves. In this work, LSP was used to treat titanium alloy Ti-13Nb-13Zr experimental coupons, and the microstructural response and surface mechanical properties of the Ti-13Nb-13Zr experimental coupons were investigated. After the LSP treatment, the X-ray diffraction (XRD) peaks were shifted without any new phase formation. The surface roughness of the experimental coupons increased, which can be explained by the LSP-induced severe plastic deformation. The LSP treatment effectively enhanced the surface compressive residual stress of Ti-13Nb-13Zr. Meanwhile, the microhardness of the Ti-13Nb-13Zr was also obviously increased after the LSP treatment. The experimental results also showed that the number of shocks times is an important factor in the improvement of surface mechanical properties. LSP treatment with multiple shocks can lead to more severe plastic deformation. The surface roughness, surface compressive residual stress and microhardness of the Ti-13Nb-13Zr experimental coupons shocked three times are higher than those after one shock. What is more, grain refinement accounts for the mechanical properties' enhancements after the LSP treatment.
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Affiliation(s)
- Jiajun Wu
- College of Engineering, Shantou University, Shantou 515063, China
| | - Xingze Lin
- College of Engineering, Shantou University, Shantou 515063, China
| | - Hongchao Qiao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Jibin Zhao
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Wangwang Ding
- Institute for Advanced Materials and Technology, University of Science & Technology Beijing, Beijing 100083, China
| | - Ran Zhu
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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Bingham JS, Hinckley NB, Deckey DG, Hines J, Spangehl MJ. Primary Tritanium acetabular components have increased rates of radiolucency associated with inferior clinical outcomes at short-term follow-up. Hip Int 2022; 32:724-729. [PMID: 33566724 DOI: 10.1177/1120700020988723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Cementless fixation is the standard for acetabular fixation in primary total hip arthroplasty (THA). There are various surface finishes thought to improve osteointegration, although literature regarding the long-term survival of some of these surfaces is limited. Regardless of design, primary stability is essential to allow for osteointegration. Previous studies have suggested an increased rate of radiolucency and compromised short-term functional outcomes using the Tritanium primary acetabular component (Stryker, Mahwah, NJ). The purpose of this study was to compare the primary Tritanium acetabular component to another contemporary acetabular component as a control group with an established clinical record. METHODS 444 consecutive, primary THAs performed by a single surgeon from 2008 to 2012 were reviewed. Patients were included if they had a minimum 1-year follow-up. Implant survivorship and modified Harris Hip Scores (mHHS) were recorded for all patients at final follow-up. Radiographs were evaluated by 2 surgeons at 6 weeks, 1 year, and the most recent follow-up for evidence of radiolucency and migration. Components were considered to have evidence of radiographic lucency if they had radiolucency in 2 or more DeLee zones. RESULTS 198 patients met criteria for inclusion (96 Pinnacle, 102 Tritanium). Average follow-up was 28 (12-72) months. At final follow-up 6.2% of the Pinnacle cups and 29.4% of the Tritanium cups had radiographic evidence of loosening (p < 0.01). The average mHHS for the Tritanium group was 83.1, and 88.4 for the Pinnacle group (p < 0.01). Radiographic evidence of loosening also correlated with a lower mHHS: 75.5 versus 86.4 (p < 0.01). In patients that received Tritanium cups without screw fixation 44.6% showed radiographic evidence of loosening versus 8% that received screw fixation (p < 0.01). In total, 6 patients in the Tritanium group required revision for aseptic loosening of the acetabular component. CONCLUSIONS The 30% rate of radiographic loosening in the Tritanium group was significantly higher than the Pinnacle group and correlated with an inferior clinical outcome. Interestingly the use of screw augmentation was protective against radiographic evidence of loosening. This suggests that the Tritanium component may be prone to fibrous in-growth because of inadequate primary stability.
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Affiliation(s)
- Joshua S Bingham
- Department of Orthopaedics, Mayo Clinic Arizona, Phoenix, AZ, USA
| | | | - David G Deckey
- Department of Orthopaedics, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Jeremy Hines
- Department of Orthopaedics, Mayo Clinic Rochester, Rochester, MN, USA
| | - Mark J Spangehl
- Department of Orthopaedics, Mayo Clinic Arizona, Phoenix, AZ, USA
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Feng X, Gu J, Zhou Y. Primary total hip arthroplasty failure: aseptic loosening remains the most common cause of revision. Am J Transl Res 2022; 14:7080-7089. [PMID: 36398241 PMCID: PMC9641425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/22/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Revision total hip arthroplasty (THA) imposes physical and financial burdens on patients and depletes limited medical resources. Causes for revision THAs can change as technology changes. Therefore, understanding contemporary causes is essential for clinical decision-making. We analyzed causes and trends associated with revision THA in the 2010s. METHODS We retrospectively identified 803 revision cases after primary THAs were performed at our center from January 2011 to December 2020. Causes for revision were reviewed and compared among patients who were grouped by the date of revision and interval between primary and revision THA. RESULTS The most common causes were aseptic loosening (66.6%), infection (11.0%), osteolysis (6.0%), periprosthetic fracture (5.5%), and instability (3.5%). The values for incidence of infection, fracture, and instability were higher in the early revision group than in the late revision group (threshold, 2 years after primary surgery, all P<0.05). The proportion of revision THAs increased by 25.6% from 2011-2015 to 2016-2020, and the time between primary and revision THAs increased from 8.8 ± 7.0 years to 10.2 ± 6.8 years (P=0.003). In the last 5 years of the study period, the incidence of aseptic loosening decreased and the rates of osteolysis, acetabular wear by hemiarthroplasty, and instability increased, compared to 2011-2015 (all P<0.05). CONCLUSIONS Aseptic loosening was the most common cause of revision THA. Revisions due to infection, fracture, and instability occurred more frequently during the early post-THA period after primary THA. Revisions due to osteolysis, instability, and acetabular wear have increased in recent years.
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Affiliation(s)
- Xiao Feng
- Department of Orthopedic Surgery, Peking University Fourth School of Clinical Medicine, Beijing Jishuitan Hospital Beijing, China
| | - Jianming Gu
- Department of Orthopedic Surgery, Peking University Fourth School of Clinical Medicine, Beijing Jishuitan Hospital Beijing, China
| | - Yixin Zhou
- Department of Orthopedic Surgery, Peking University Fourth School of Clinical Medicine, Beijing Jishuitan Hospital Beijing, China
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Quarto E, Zanirato A, Santolini F, Formica M. Bone impaction grafting and anti-protrusio cages in high-grade acetabular defects: a 22-year single centre experience. Arch Orthop Trauma Surg 2022; 142:2083-2091. [PMID: 34297189 DOI: 10.1007/s00402-021-04081-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 07/19/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Report clinical and radiological long-term follow-up (FU) outcome of bone impaction grafting (BIG) and anti-protrusio cage (APC) technique in hip revision surgery. MATERIALS AND METHODS We analysed data on complications, as well as the clinical and radiological outcome of patients treated using this technique at our institution. We evaluated the acetabular bone stock renovation, acetabular component stability and its radiological migration. The clinical parameters considered were the Visual Analogue Scale (VAS) and the modified Harris Hip Score (mHHS). RESULTS Forty hips, with a mean 14.3-year FU, were included. This technique showed good clinical long-term results in an elderly and low-demanding population (mean age at surgery 71.4 ± 12.1 years). The radiological results were not as good as clinical results: 67.5% of cases had a radiographic evidence of resorption of less than 1/3 of the bone graft; 27.5% had a resorption ranging from 1/3 and ½ of the graft, and 5% had more than ½ of the graft. Paprosky type III B reported worse results in terms of graft resorption and a greater migration of the APC (p < 0.001). The survival rate was 95% and a 2.5% rate of septic failure was recorded. CONCLUSION Impaction grafting with femoral head and APC is an effective technique for treating high-grade acetabular defects. APC reconstructs the hip centre of rotation, avoiding loading forces on the underlying bone graft that can be correctly integrated. At long-term FU, satisfactory clinical results, not strictly correlated to radiological signs of integration, were observed; Paprosky type III B reported worse results in terms of graft resorption and a greater migration of the APC.
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Affiliation(s)
- E Quarto
- Genova, Clinica Ortopedica, IRCCS Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, GE, Italy.
| | - A Zanirato
- Genova, Clinica Ortopedica, IRCCS Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, GE, Italy
| | - F Santolini
- Genova, Ortopedia e Traumatologia d'Urgenza, IRCCS Policlinico San Martino, Genoa, Italy
| | - M Formica
- Genova, Clinica Ortopedica, IRCCS Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, GE, Italy
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11
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Hoskins W, Rainbird S, Holder C, Graves SE, Bingham R. Revision for Aseptic Loosening of Highly Porous Acetabular Components in Primary Total Hip Arthroplasty: An Analysis of 20,993 Total Hip Replacements. J Arthroplasty 2022; 37:312-315. [PMID: 34699913 DOI: 10.1016/j.arth.2021.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/14/2021] [Accepted: 10/18/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Highly porous-coated titanium acetabular components have a high coefficient of friction and ultraporous surfaces to enhance bone ingrowth and osseointegration in total hip arthroplasty (THA). There have been concerns with the development of early radiolucent lines and aseptic loosening of highly porous acetabular components. It is unclear whether these concerns relate to a specific implant or the entire class. The aim of this study is to compare the revision rates for aseptic loosening of highly porous acetabular combinations in primary THA using data from a large joint replacement registry. METHODS Data were retrieved from the Australian Orthopedic Association National Joint Replacement Registry for the study period September 1999 to December 2019. All primary THA procedures recorded and performed for osteoarthritis using the most common combinations for each highly porous acetabular component with highly cross-linked polyethylene and a 32-mm or 36-mm femoral head were included. The primary outcome measure was revision for aseptic loosening of the acetabular component. Results were adjusted for patient age and gender. RESULTS There were 20,993 primary THA procedures performed for osteoarthritis using a highly porous acetabular component across 6 combinations. Relative to the POLARSTEM/R3 (StikTite), the Exeter V40/Tritanium had a significantly higher risk of revision for aseptic loosening of the acetabular component (hazard ratio 0.21, 95% confidence interval 0.06-0.74, P = .014). There was no difference between any other highly porous acetabular component combination and no late revisions for aseptic loosening. CONCLUSION Highly porous-coated titanium acetabular components have low rates of aseptic loosening with long-term follow-up. A difference between components may exist. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Wayne Hoskins
- Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria, Australia; Traumaplasty. Melbourne, East Melbourne, Victoria, Australia
| | - Sophia Rainbird
- South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia
| | - Carl Holder
- Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR), Adelaide, South Australia Australia
| | - Stephen E Graves
- South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia
| | - Roger Bingham
- Traumaplasty. Melbourne, East Melbourne, Victoria, Australia
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12
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Sculco PK, Wright T, Malahias MA, Gu A, Bostrom M, Haddad F, Jerabek S, Bolognesi M, Fehring T, Gonzalez DellaValle A, Jiranek W, Walter W, Paprosky W, Garbuz D, Sculco T, Abdel M, Boettner F, Benazzo F, Buttaro M, Choi D, Engh CA, Garcia-Cimbrelo E, Garcia-Rey E, Gehrke T, Griffin WL, Hansen E, Hozack WJ, Jones S, Lee GC, Lipman J, Manktelow A, McLaren AC, Nelissen R, O’Hara L, Perka C, Sporer S. The Diagnosis and Treatment of Acetabular Bone Loss in Revision Hip Arthroplasty: An International Consensus Symposium. HSS J 2022; 18:8-41. [PMID: 35082557 PMCID: PMC8753540 DOI: 10.1177/15563316211034850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/07/2021] [Accepted: 07/07/2021] [Indexed: 11/21/2022]
Abstract
Despite growing evidence supporting the evaluation, classification, and treatment of acetabular bone loss in revision hip replacement, advancements have not been systematically incorporated into a single document, and therefore, a comprehensive review of the treatment of severe acetabular bone loss is needed. The Stavros Niarchos Foundation Complex Joint Reconstruction Center at Hospital for Special Surgery held an Acetabular Bone Loss Symposium on June 21, 2019, to answer the following questions: What are the trends, emerging technologies, and areas of future research related to the evaluation and management of acetabular bone loss in revision hip replacement? What constitutes the optimal workup and management strategies for acetabular bone loss? The 36 international experts convened were divided into groups, each assigned to discuss 1 of 4 topics: (1) preoperative planning and postoperative assessment; (2) implant selection, management of osteolysis, and management of massive bone loss; (3) the treatment challenges of pelvic discontinuity, periprosthetic joint infection, instability, and poor bone biology; and (4) the principles of reconstruction and classification of acetabular bone loss. Each group came to consensus, when possible, based on an extensive literature review. This document provides an overview of these 4 areas, the consensus each group arrived at, and directions for future research.
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Affiliation(s)
- Peter K. Sculco
- Hospital for Special Surgery, New York, NY, USA,Peter K. Sculco, MD, Hospital for Special Surgery, 535 E. 70th St., New York, NY 10021, USA.
| | | | | | - Alexander Gu
- George Washington University School of Medicine & Health Sciences, Washington, DC, USA
| | | | - Fares Haddad
- University College London Hospitals NHS Foundation Trust and Institute of Sport, Exercise & Health, London, UK
| | | | | | | | | | | | - William Walter
- Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Wayne Paprosky
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Donald Garbuz
- Department of Orthopaedics, The University of British Columbia, Vancouver, BC, Canada
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13
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Carli AV, Galmiche R, Dobransky J, Beaulé PE. Radiographic assessment of the dynasty biofoam acetabular component with a minimum 2 years follow-up. Hip Int 2022; 32:80-86. [PMID: 32926801 DOI: 10.1177/1120700020958694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Acetabular components utilising novel ultraporous metal matrices have been recently introduced into clinical practice with improved interference fit, decreased stress shielding, and hope for more reliable osseointegration. 1 such example is the Dynasty Biofoam cup, which has been in clinical use for over a decade but has few reports documenting its clinical and radiographic performance. METHODS A single-centre retrospective study was performed evaluating 96 Dynasty Biofoam acetabular components implanted between March 2010 and August 2014 with minimum 2-year radiographic follow-up. Patients that received components for revision surgery or that had early complications postoperatively (femur fracture, prosthetic infection) were excluded. Biofoam patients were compared to 96 patients that received the Trident PSL acetabular component and were matched for age, gender, and BMI. Patient reported outcomes, component position and radiographic features of cup loosening, including radiolucent lines and sclerosis were compared among groups. RESULTS Patient-reported outcomes at 2 years were similar among groups. Cup anteversion was similar but inclination was significantly greater in the Biofoam group (p = 0.006). A significantly greater number of Biofoam components exhibited 2-zone (27.2%) and 3-zone (12.0%) radiolucencies compared to 0% of the Trident shells (p < 0.05). 2 Biofoam cups were revised for aseptic loosening compared to no Trident cups (p = 0.49). DISCUSSION Despite adequate implant survivorship, over a quarter of Biofoam cups had 2 or more radiolucent zones in early follow-up. Longer follow-up is needed to determine if the aseptic revision rate for this cup will increase.
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Affiliation(s)
- Alberto V Carli
- Adult Reconstuction and Joint Replacement Division, Hospital for Special Surgery, New York, NY, USA
| | - Romain Galmiche
- TheDivision of Orthopaedic Surgery, Department of Surgery, The Ottawa Hospital, University of Ottawa, Ontario, Canada
| | - Johanna Dobransky
- TheDivision of Orthopaedic Surgery, Department of Surgery, The Ottawa Hospital, University of Ottawa, Ontario, Canada
| | - Paul E Beaulé
- TheDivision of Orthopaedic Surgery, Department of Surgery, The Ottawa Hospital, University of Ottawa, Ontario, Canada
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14
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Tamaki Y, Goto T, Takasago T, Wada K, Hamada D, Sairyo K. Clinical and radiological outcomes of total hip arthroplasty using a highly porous titanium cup or a conventional hydroxyapatite-coated titanium cup: A retrospective study in Japanese patients. J Orthop Sci 2022; 27:163-168. [PMID: 33341353 DOI: 10.1016/j.jos.2020.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/04/2020] [Accepted: 11/07/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND A highly porous titanium cup has a unique structure that mimics human trabecular bone and is expected to achieve better outcomes due to rigid fixation and extensive bone ingrowth. Several manufacturers have developed a highly porous titanium cup; however, some have shown a high incidence of radiolucent lines (RLLs) on early postoperative radiographs. In this study, we compared the clinical and radiological outcomes of total hip arthroplasty (THA) using a highly porous titanium cup (OsseoTi, Zimmer Biomet) with those after THA using a conventional hydroxyapatite-coated titanium cup (Trident HA, Stryker). METHODS A total of 201 hips that underwent THA using an OsseoTi cup (n = 101) or Trident cup (n = 100) were enrolled in the study. Patient characteristics, cup alignment, clinical outcome (determined by the Japanese Orthopedic Association [JOA] score), and incidence of RLLs around the cup were evaluated at 3, 6, 12, and 24 months postoperatively. RESULTS The clinical outcome was excellent in both groups. The incidence of RLLs was 12.9% at 3 months, 20.8% at 6 months, 23.8% at 12 months, and 22.8% at 24 months after surgery in the OsseoTi group; there were no cases of RLL at any time after surgery in the Trident group. The RLLs were mainly distributed in zone 2. Despite the high rate of RLL in the OsseoTi group, the RLL were narrow and only 5% had a width of >1 mm at 24 months postoperatively. There were no cases with RLLs in all three zones. CONCLUSIONS Despite excellent clinical outcomes in both study groups, the incidence of RLLs was higher in the OsseoTi group than in the Trident group. Although none of our cases with RLL have required revision surgery for aseptic loosening so far, these patients require careful follow-up.
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Affiliation(s)
- Yasuaki Tamaki
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Tomohiro Goto
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Tomoya Takasago
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Keizo Wada
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Daisuke Hamada
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan
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15
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Yeroushalmi D, Singh V, Maher N, Gabor JA, Zuckerman JD, Schwarzkopf R. Excellent mid-term outcomes with a hemispheric titanium porous-coated acetabular component for total hip arthroplasty: 7-10 year follow-up. Hip Int 2021; 33:404-410. [PMID: 34412531 DOI: 10.1177/11207000211040181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Third-generation hemispheric, titanium porous-coated (HTPC) acetabular cups have been shown to achieve good biologic fixation through enhanced porous ingrowth surfaces. They also allow for a wide range of bearing options, including polyethylene, dual-mobility, and ceramic liners. The purpose of the study is to review the mid-term clinical outcomes an HTPC acetabular cup with a minimum of 7-year follow-up. METHODS A retrospective, observational study was conducted on all consecutive patients who underwent total hip arthroplasty (THA) with an HTCP acetabular cup at an urban, tertiary referral centre. Descriptive statistics were used describe baseline patient characteristics. Outcomes collected included postoperative complications, survival free of reoperations, and presence of osteolysis at latest imaging follow-up. Implant survival was analysed using the Kaplan-Meier method. RESULTS 118 cases (114 primary, 4 revision) underwent THA with the HTCP acetabular cup at an average follow-up of 8.16 ± 0.85 years (range 7.02-10.28 years). Mean patient age at the time of surgery was 61.29 ± 12.04 years. All cases utilised a high-molecular-weight polyethylene (HMWPE) liner. None of the acetabular cups showed loosening or migration at the latest follow-up. There were 2 revisions in our study, 1 for abductor mechanism disruption and 1 due to surgical site infection where the acetabular cup was revised. Kaplan-Meier survivorship analysis for all-cause revision at 7 and 10-year follow-up showed a survival rate of 99.1% (95% confidence interval, 94.1-99.9%). Survivorship analysis for aseptic acetabular revision at 10-year follow-up showed a survival rate of 100%. CONCLUSIONS At long-term follow-up, no radiologic and minimal clinical complications were identified in this series. The HTPC acetabular cup system, used in conjunction with a HMWPE liner, demonstrates excellent outcomes and survivorship when compared to earlier mid-term studies published in the literature.
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Affiliation(s)
| | - Vivek Singh
- NYU Orthopedic Hospital, NYU Langone Health, New York, NY, USA
| | - Nolan Maher
- NYU Orthopedic Hospital, NYU Langone Health, New York, NY, USA
| | | | | | - Ran Schwarzkopf
- NYU Orthopedic Hospital, NYU Langone Health, New York, NY, USA
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16
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Hernandez NM, Hinton ZW, Wu CJ, Lachiewicz PF, Ryan SP, Wellman SS. Is there a problem with modular dual mobility acetabular components in revision total hip arthroplasty at mid-term follow-up? Bone Joint J 2021; 103-B:66-72. [PMID: 34192910 DOI: 10.1302/0301-620x.103b7.bjj-2020-2015.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Modular dual mobility (MDM) acetabular components are often used with the aim of reducing the risk of dislocation in revision total hip arthroplasty (THA). There is, however, little information in the literature about its use in this context. The aim of this study, therefore, was to evaluate the outcomes in a cohort of patients in whom MDM components were used at revision THA, with a mean follow-up of more than five years. METHODS Using the database of a single academic centre, 126 revision THAs in 117 patients using a single design of an MDM acetabular component were retrospectively reviewed. A total of 94 revision THAs in 88 patients with a mean follow-up of 5.5 years were included in the study. Survivorship was analyzed with the endpoints of dislocation, reoperation for dislocation, acetabular revision for aseptic loosening, and acetabular revision for any reason. The secondary endpoints were surgical complications and the radiological outcome. RESULTS The overall rate of dislocation was 11%, with a six-year survival of 91%. Reoperation for dislocation was performed in seven patients (7%), with a six-year survival of 94%. The dislocations were early (at a mean of 33 days) in six patients, and late (at a mean of 4.3 years) in four patients. There were three intraprosthetic dissociations. An outer head diameter of ≥ 48 mm was associated with a lower risk of dislocation (p = 0.013). Lumbrosacral fusion was associated with increased dislocation (p = 0.004). Four revision THAs (4%) were further revised for aseptic acetabular loosening, and severe bone loss (Paprosky III) at the time of the initial revision was significantly associated with further revision for aseptic acetabular loosening (p = 0.008). Fourteen acetabular components (15%) were re-revised for infection, and a pre-revision diagnosis of reimplantation after periprosthetic joint infection (PJI) was associated with subsequent PJI (p < 0.001). Two THAs had visible metallic changes on the backside of the cobalt chromium liner. CONCLUSION When using this MDM component in revision THA, at a mean follow-up of 5.5 years, there was a higher rate of dislocation (11%) than previously reported. The size of the outer bearing was related to the risk of dislocation. There was a low rate of aseptic acetabular loosening. Longer follow-up of this MDM component and evaluation of other designs are warranted. Cite this article: Bone Joint J 2021;103-B(7 Supple B):66-72.
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Affiliation(s)
- Nicholas M Hernandez
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Zoe W Hinton
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Christine J Wu
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Paul F Lachiewicz
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA
| | - Sean P Ryan
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Samuel S Wellman
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA
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17
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A New Additive-Manufactured Cementless Highly Porous Titanium Acetabular Cup for Primary Total Hip Arthroplasty-Early Two-Year Follow Up. Surg Technol Int 2021; 38:393-398. [PMID: 33724435 DOI: 10.52198/21.sti.38.os1398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Additive-manufacturing technologies are increasingly being used, not only to create acetabular components with porous coating architecture very similar to the complex trabecular structure of cancellous bone, but also for producing the entire implant in a single step. The aim of this study is to assess two-year clinical and radiological outcomes of a new additive-manufactured cup in primary total hip arthroplasty (THA). MATERIALS AND METHODS We reviewed 266 primary THAs (254 patients) performed in our institution between December 2016 and December 2018 using a new highly porous titanium acetabulum shell fabricated via additive manufacturing. Clinical and functional outcomes were measured using SF/VR-12 and HOOS JR to determine patient satisfaction with surgery. Radiographs were assessed to determine the presence of migration, radiolucency, and loosening. Patients records were reviewed to assess cup survivorship in terms of all-cause revisions and revision for aseptic cup loosening. RESULTS At a minimum of two-year follow up (range: 2-3.45 years), the patient cohort demonstrated significant improvement in postoperative functional scores (hip disability and osteoarthritis outcome score for joint replacement [HOOS JR.] and clinical scores (12-item short-form health survey [SF/VR-12]) (p<0.001). One cup developed progressive radiolucent lines at the prosthesis-bone interface consistent with loosening and was revised. The overall acetabular component two-year survivorship free of all-cause failure was 97.4% (95% confidence interval [CI]: 95.5-99.4%). When aseptic loosening of the acetabular component was used as the failure endpoint, the two-years survivorship rate was 99.6% (95% CI: 98.9-100%). CONCLUSION Highly porous titanium cementless acetabular cups produced via additive-manufacturing showed promising early clinical and radiological results in primary THA with low rates of aseptic loosening. Further follow-up studies are needed to assess the long-term survivorship and outcomes of this new acetabular component.
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18
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Huang Y, Zhou YX, Tian H, Wang JW, Liu WG, Li H. Minimum 7-year Follow-up of A Porous Coated Trabecular Titanium Cup Manufactured with Electron Beam Melting Technique in Primary Total Hip Arthroplasty. Orthop Surg 2021; 13:817-824. [PMID: 33728818 PMCID: PMC8126901 DOI: 10.1111/os.12846] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/04/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES To investigate the cup survivorship, patient satisfaction level, clinical function, and radiographic outcomes of patients who underwent total hip arthroplasty (THA) using electron beam melting (EBM)-produced porous coated titanium cups at mid-term follow up. METHODS A total of 32 patients (32 hips) from five hospitals in China who underwent primary THA using EBM-produced trabecular titanium cups between May and December 2012 were retrospectively reviewed. The inclusion criteria were: (i) patients who underwent THA with the use of EBM-produced cups with possible 7-year follow up; and (ii) patients with follow-up information, including the cup survivorship, patient satisfaction level, and clinical outcomes such as Harris hip score. The exclusion criteria were: (i) patients with neuropathic diseases; and (ii) patients who underwent THA due to neoplastic disease. Five (15.6%) patients were lost to follow up before the 7-year follow-up and, thus, were excluded; none of these patients died due to disease associated with the THA or had undergone removal of their cups as of our last evaluation. The mean age and body mass index of the patients were 59.37 (range: 38.00-69.00) years and 24.51 (range: 16.50-34.10) kg/m2 , respectively. Thirteen (48.1%) of the patients were female. RESULTS The average duration of follow-up was 93.48 (range: 89.00-99.00) months. The median Harris hip score improved from 42.00 (interquartile range: 37.00-49.00) to 97.00 (interquartile range: 92.00-97.00) at the latest follow up (P < 0.001). A total of 18 (66.7%) patients rated their satisfaction level as very satisfied, 6 (22.2%) as satisfied, 2 (7.4%) as neutral and 1 (3.7%) as dissatisfied. No intraoperative or postoperative complications were identified. At the latest follow up, all cups were considered to have achieved osteointegration fixation, with three or more of the five signs evident in the most recent X-ray. However, three cups revealed radiolucent lines with a width of less than 1 mm. The median vertical and horizontal distances between the latest postoperative center of rotation relative to the anatomic center of rotation were 2.50 (interquartile range: -3.10, 6.94) mm superiorly and 3.26 (interquartile range: -8.12, 2.38) mm medially, respectively, at the most recent postoperative follow up. Kaplan-Meier survivorship analysis of cups, with the endpoint defined as postoperative radiolucent lines of less than 1 mm in width in at least two zones, reveals that the 8.25-year survival was 96.3% (95% confidence interval: 76.49%-99.47%). CONCLUSION The mid-term follow-up of patients who underwent primary THA using EBM-produced porous coated titanium cups demonstrated favorable patient satisfaction, good clinical function, excellent survivorship, and adequate biological fixation.
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Affiliation(s)
- Yong Huang
- Department of Orthopaedics, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Yi-Xin Zhou
- Department of Orthopaedics, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Hua Tian
- Orthopaedic Department, Peking University Third Hospital, Beijing, China
| | - Jun-Wen Wang
- Department of Orthopaedics and Traumatology, Wuhan Fourth Hospital (Puai Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Guang Liu
- Department of Joint Surgery and Sports Medicine, The Second Hospital of Shandong University, Jinan, China
| | - Hu Li
- Department of Orthopaedic Surgery, Peking University People's Hospital, Beijing, China
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19
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Zielinski MR, Deckard ER, Meneghini RM. The Fate of Zone 2 Radiolucencies in Contemporary Highly Porous Acetabular Components: Not All Designs Perform Equally. Arthroplast Today 2021; 8:96-102. [PMID: 33732833 PMCID: PMC7943963 DOI: 10.1016/j.artd.2021.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/05/2021] [Accepted: 01/31/2021] [Indexed: 01/08/2023] Open
Abstract
Background The enhanced frictional resistance of modern ultraporous acetabular components can impede complete seating; however, surgeons expect the enhanced ingrowth surface to resolve polar (zone 2) gaps over time via osseointegration. This study characterized zone 2 radiographic osseointegration in 3 acetabular component designs: 2 highly porous ingrowth and one traditional ongrowth. Methods A consecutive cohort of primary total hip arthroplasties was reviewed which utilized 3 different acetabular cup designs: ongrowth titanium with hydroxyapatite (HA), highly porous titanium with machined radial grooves (MRG), and dual-porous titanium substrate with micropore (MP). Radiographic analysis was performed using accepted measurement criteria with particular attention to radiolucent lines. Results Seven hundred ninety cases were available for analysis. Initial 1-month radiographs revealed 43.2% of HA, 78.2% of MRG, and 81.0% of MP cups exhibited zone 2 radiolucencies, consistent with incomplete seating. At 1 year, all HA radiolucencies resolved, whereas 46.2% and 34.7% of radiolucencies remained in MRG and MP cups, respectively (P ≤ .005). At minimum 2 years, a significant proportion of zone 2 radiolucencies remained in 46.0% of MRG compared with 23.9% of MP cups and 3.0% of HA cups (P ≤ .007). Conclusion The resolution of zone 2 radiolucencies at 1-year and minimum 2-year follow-up signified osseointegration for nearly all HA and most MP cups. Highly porous titanium cups with machined radial grooves demonstrated persistent zone 2 radiolucencies at 1 year and beyond. Given reports of early loosening with this particular acetabular implant, further follow-up is warranted as this study highlights that not all contemporary highly porous metal acetabular components perform equally. Level of Evidence III.
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Affiliation(s)
- Matthew R Zielinski
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Evan R Deckard
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - R Michael Meneghini
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.,IU Health Hip & Knee Center, IU Health Saxony Hospital, Fishers, IN, USA
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20
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Sherman WF, Flick TR, Dranoff CS, Weintraub MJ, Kale NN, Sommi C, Sanchez FL. Variability of Cutting and Thermal Dynamics Between New and Used Acetabular Reamers During Total Hip Arthroplasty. Arthroplast Today 2021; 7:91-97. [PMID: 33521203 PMCID: PMC7818610 DOI: 10.1016/j.artd.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022] Open
Abstract
Background Aseptic loosening of the acetabular component remains one of the leading causes of early failure of total hip arthroplasty. Poor apposition of bone onto the implant surface can be due to inaccurate reaming and osteonecrosis of the acetabular bone due to the heat generated while reaming. Methods New and used acetabular reamers were tested on an MTS system using a clinically relevant force of 87.6 N. A thermal profile and depth achieved by the reamers were analyzed and compared between the 2 cohorts. Heat generated and force required for the community used reamers to achieve the same depth as the new reamers were subsequently analyzed. Results The new reamers achieved a depth 3.4 mm deeper than the community reamers (P < .001). The new reamers generated 4.1°C less heat than the community reamers (P = .007) under the same force and time. When programmed to ream to the average depth of the new reamers, the community reamers generated 16.8°C more heat (P = .002) and required forces 95-318% greater than the 87.6 N force used by the new reamers. Conclusions Community use of reamers will cause variations in depth of penetration and increased temperatures at a clinically generated force vs new reamers. When community reamers were forced to the same depths the new reamers achieved, a significantly greater amount of heat was generated, and an increased amount of time was needed, both of which are known risk factors for osteonecrosis.
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Affiliation(s)
- William F Sherman
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA, USA
| | - Travis R Flick
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA, USA
| | - Charles S Dranoff
- Tulane University School of Science and Engineering, New Orleans, LA, USA
| | | | - Nisha N Kale
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA, USA
| | - Corinne Sommi
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA, USA
| | - Fernando L Sanchez
- Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA, USA
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21
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The Recombinant Protein EphB4-Fc Changes the Ti Particle-Mediated Imbalance of OPG/RANKL via EphrinB2/EphB4 Signaling Pathway and Inhibits the Release of Proinflammatory Factors In Vivo. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1404915. [PMID: 32587656 PMCID: PMC7294355 DOI: 10.1155/2020/1404915] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/12/2020] [Accepted: 02/26/2020] [Indexed: 12/18/2022]
Abstract
Aseptic loosening caused by wear particles is one of the common complications after total hip arthroplasty. We investigated the effect of the recombinant protein ephB4-Fc (erythropoietin-producing human hepatocellular receptor 4) on wear particle-mediated inflammatory response. In vitro, ephrinB2 expression was analyzed using siRNA-NFATc1 (nuclear factor of activated T-cells 1) and siRNA-c-Fos. Additionally, we used Tartrate-resistant acid phosphatase (TRAP) staining, bone pit resorption, Enzyme-linked immunosorbent assay (ELISA), as well as ephrinB2 overexpression and knockdown experiments to verify the effect of ephB4-Fc on osteoclast differentiation and function. In vivo, a mouse skull model was constructed to test whether the ephB4-Fc inhibits osteolysis and inhibits inflammation by micro-CT, H&E staining, immunohistochemistry, and immunofluorescence. The gene expression of ephrinB2 was regulated by c-Fos/NFATc1. Titanium wear particles activated this signaling pathway to the promoted expression of the ephrinB2 gene. However, ephrinB2 protein can be activated by osteoblast membrane receptor ephB4 to inhibit osteoclast differentiation. In in vivo experiments, we found that ephB4 could regulate Ti particle-mediated imbalance of OPG/RANKL, and the most important finding was that ephB4 relieved the release of proinflammatory factors. The ephB4-Fc inhibits wear particle-mediated osteolysis and inflammatory response through the ephrinB2/EphB4 bidirectional signaling pathway, and ephrinB2 ligand is expected to become a new clinical drug therapeutic target.
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22
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Malahias MA, Kostretzis L, Greenberg A, Nikolaou VS, Atrey A, Sculco PK. Highly Porous Titanium Acetabular Components in Primary and Revision Total Hip Arthroplasty: A Systematic Review. J Arthroplasty 2020; 35:1737-1749. [PMID: 32070658 DOI: 10.1016/j.arth.2020.01.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/13/2019] [Accepted: 01/20/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND A number of papers have been published reporting on the clinical performance of highly porous coated titanium acetabular cups in primary and revision total hip arthroplasty (THA). However, no systematic review of the literature has been published to date. METHODS The US National Library of Medicine (PubMed/MEDLINE), Embase, and the Cochrane Database of Systematic Reviews were queried for publications utilizing the following keywords: "tritanium" OR "highly-porous" AND "titanium" OR "acetabular" AND "trabecular" AND "titanium". RESULTS Overall, 16 studies were included in this review (11,366 cases; 60% females, 2-7 years mean follow-up). The overall survival rate of highly porous titanium acetabular components in primary cases was 99.3% (10,811 of 10,886 cases), whereas the rate of aseptic loosening was 0.1%. The overall survival rate of the highly porous titanium acetabular components in revision THA cases was 93.5% (449 of 480 cases), whereas the rate of aseptic loosening was 2.1%. CONCLUSION There was moderate quality evidence to show that the use of highly porous titanium acetabular components in primary and revision THA cases is associated with satisfactory clinical outcomes in the short- and medium-term, without showing any evidence of cup migration or radiolucency. Taking into consideration that there is no evidence yet regarding the long-term survivorship of these components, we feel that further research of higher quality is required to generate more evidence-based conclusions regarding the longevity of highly porous titanium acetabular implants compared with conventional titanium counterparts.
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Affiliation(s)
- Michael-Alexander Malahias
- The Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY
| | - Lazaros Kostretzis
- The Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY
| | - Alex Greenberg
- The Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY
| | - Vasileios S Nikolaou
- 2(nd) Orthopaedic Department, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Amit Atrey
- Division of Orthopaedics, St Michaels Hospital, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Peter K Sculco
- The Stavros Niarchos Foundation Complex Joint Reconstruction Center, Hospital for Special Surgery, New York NY
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23
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Jaeger S, Uhler M, Schroeder S, Beckmann NA, Braun S. Comparison of Different Locking Mechanisms in Total Hip Arthroplasty: Relative Motion between Cup and Inlay. MATERIALS 2020; 13:ma13061392. [PMID: 32204382 PMCID: PMC7142960 DOI: 10.3390/ma13061392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 01/03/2023]
Abstract
The resulting inflammatory reaction to polyethylene (PE) wear debris, which may result in osteolysis, is still considered to be a main reason for aseptic loosening. In addition to the primary wear in hip joint replacements caused by head-insert articulation, relative motions between the PE liner and the metal cup may cause additional wear. In order to limit this motion, various locking mechanisms were used. We investigated three different locking mechanisms (Aesculap, DePuy, and Zimmer Biomet) to address the resulting relative motion between the acetabular cup and PE liner and the maximum disassembly force. A standardized setting with increasing load levels was used in combination with optically based three-dimensional measurements. In addition the maximum disassembly forces were evaluated according to the ASTM F1820-13 standard. Our data showed significant differences between the groups, with a maximum relative motion at the maximum load level (3.5 kN) of 86.5 ± 32.7 µm. The maximum axial disassembly force was 473.8 ± 94.6 N. The in vitro study showed that various locking mechanisms may influence cup-inlay stability.
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Affiliation(s)
- Sebastian Jaeger
- Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany; (S.S.); (S.B.)
- Correspondence: (S.J.); (M.U.)
| | - Maximilian Uhler
- Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany; (S.S.); (S.B.)
- Correspondence: (S.J.); (M.U.)
| | - Stefan Schroeder
- Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany; (S.S.); (S.B.)
| | - Nicholas A. Beckmann
- Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany;
- Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, 3010 Bern, Switzerland
| | - Steffen Braun
- Laboratory of Biomechanics and Implant Research, Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg University, 69118 Heidelberg, Germany; (S.S.); (S.B.)
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24
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Tang H, Zhou B, Huang Y, Zhou Y, Chen B, Li X. Inferior extended fixation utilizing porous titanium augments improves primary anti-rotational stability of the acetabular component. Clin Biomech (Bristol, Avon) 2019; 70:158-163. [PMID: 31525656 DOI: 10.1016/j.clinbiomech.2019.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/14/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The primary anti-rotational stability is critical to preventing cup tilting failure following revision total hip arthroplasty, but is frequently compromised by severe ischial bone loss. A novel technique of "inferior extended fixation" was introduced by securing a porous metal augment into the deficient ischium. This study evaluated the effect of this technique on primary anti-rotational stability in revision total hip arthroplasty. METHODS Composite hemipelvis specimens, acetabular components and "lotus" augments were used to simulate total hip arthroplasty surgeries. Three different cementless operative settings of cup implantation were simulated: (1) native ischium without defects; (2) ischium with a defect not reconstructed; (3) ischial defect reconstructed with inferior extended fixation using a lotus augment. Lever-out testing was used to examine primary anti-rotational stability, which was measured as interface stiffness and yield moment. FINDINGS Compared with the native ischium setting, the mean interface stiffness decreased by 53.1% in the ischial defect setting (p < 0.001). In the inferior extended fixation setting, the mean value was 110% greater than that in the ischial defect setting (p = 0.014), and comparable to that in the native ischium setting (p = 1). Similar results were observed for the yield moment (declined by 63.1%, p < 0.001; 200% higher, p < 0.001; and p = 0.395; respectively). INTERPRETATION In revision total hip arthroplasty with severe ischial defects, inferior extended fixation with a lotus porous titanium augment restores anti-rotational stability of the acetabular component to the level of that with a native ischium, which provides the mechanical environment for bone ingrowth and prevents cup tilting failure.
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Affiliation(s)
- Hao Tang
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Baochun Zhou
- Department of Orthopaedics, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, China
| | - Yong Huang
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Yixin Zhou
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China.
| | - Bo Chen
- R&D Center, AK Medical Co., Ltd, Beijing, China
| | - Xinyu Li
- R&D Center, AK Medical Co., Ltd, Beijing, China
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25
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Han Q, Wang C, Chen H, Zhao X, Wang J. Porous Tantalum and Titanium in Orthopedics: A Review. ACS Biomater Sci Eng 2019; 5:5798-5824. [PMID: 33405672 DOI: 10.1021/acsbiomaterials.9b00493] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Porous metal is metal with special porous structures, which can offer high biocompatibility and low Young's modulus to satisfy the need for orthopedic applications. Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous titanium and tantalum have been studied and applied for a long history until now. Here in this review, various manufacturing methods of titanium and tantalum porous metals are introduced. Application of these porous metals in different parts of the body are summarized, and strengths and weaknesses of these porous metal implants in clinical practice are discussed frankly for future improvement from the viewpoint of orthopedic surgeons. Then according to the requirements from clinics, progress in research for clinical use is illustrated in four aspects. Various creative designs of microporous and functionally gradient structure, surface modification, and functional compound systems of porous metal are exhibited as reference for future research. Finally, the directions of orthopedic porous metal development were proposed from the clinical view based on the rapid progress of additive manufacturing. Controllable design of both macroscopic anatomical bionic shape and microscopic functional bionic gradient porous metal, which could meet the rigorous mechanical demand of bone reconstruction, should be developed as the focus. The modification of a porous metal surface and construction of a functional porous metal compound system, empowering stronger cell proliferation and antimicrobial and antineoplastic property to the porous metal implant, also should be taken into consideration.
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Affiliation(s)
- Qing Han
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Chenyu Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Hao Chen
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Xue Zhao
- Department of Endocrine and Metabolism, The First Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Jincheng Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
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26
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Thavanayagam G, Swan J. Optimizing hydride-dehydride Ti-6Al-4V feedstock composition for titanium powder injection moulding. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.07.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Kaur M, Singh K. Review on titanium and titanium based alloys as biomaterials for orthopaedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:844-862. [PMID: 31147056 DOI: 10.1016/j.msec.2019.04.064] [Citation(s) in RCA: 369] [Impact Index Per Article: 73.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/20/2019] [Accepted: 04/20/2019] [Indexed: 02/07/2023]
Abstract
Variety of implant materials have been employed in various disciplines of medical science depending on the requirement of a particular application. Metals, alloys, ceramics, and polymers are the commonly used biomaterials. The main focus of this study is to review the various structural and microstructural properties of titanium and titanium based alloys used as orthopaedic implants. Orthopaedic implants need to possess certain important qualities to ensure their safe and effective use. These properties like the biocompatibility, relevant mechanical properties, high corrosion and wear resistance and osseointegration are summarized in this review. Various attempts to improve upon these properties like different processing routes, surface modifications have also been inculcated in the paper to provide an insight into the extent of research and effort that has been put into developing a highly superior titanium orthopaedic implant.
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Affiliation(s)
- Manmeet Kaur
- School of Physics and Materials Science, Thapar Institute of Engineering and Technology, Patiala, Punjab 147004, India
| | - K Singh
- School of Physics and Materials Science, Thapar Institute of Engineering and Technology, Patiala, Punjab 147004, India.
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28
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Rahm S, Tondelli T, Steinmetz S, Schenk P, Dora C, Zingg PO. Uncemented Total Hip Arthroplasty Through the Direct Anterior Approach: Analysis of a Consecutive Series of 275 Hips With a Minimum Follow-Up of 10 Years. J Arthroplasty 2019; 34:1132-1138. [PMID: 30795936 DOI: 10.1016/j.arth.2019.01.062] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The purpose of this study was to document complications, outcomes, and 10-year survivorship of primary total hip arthroplasty (THA) using a direct anterior approach with an uncemented, straight, hydroxyapatite-coated stem and an uncemented cup. METHODS A retrospective, consecutive series of 275 primary THAs through a direct anterior approach with traction table using Medacta Versafit cup and Quadra-H stem with a minimum of 10-year follow-up was identified. The cumulative 10-year survival of the implants was estimated using Kaplan-Meier estimator. All complications, reoperations, and failures were analyzed. Subjective and clinical outcomes (Subjective Hip Value, Western Ontario and McMaster Universities Osteoarthritis Index, and Harris Hip Score) were measured. RESULTS Of 256 patients (275 hips, 143 men and 113 women) with a mean age of 63 (range, 24-85) years, 48 (19%) patients (52 hips) deceased not related to the surgery after a mean time 49 months (range, 3-118) postoperatively. At >10-year follow-up, 9 THAs were revised. The overall implant survival rate was 96.8% (95% confidence interval, 94.4-98.7) at 10 years. One cup and 1 stem were revised because of aseptic loosening. At the last follow-up, the median Subjective Hip Value was 90% (range, 20-100), the Western Ontario and McMaster Universities Osteoarthritis Index score reached a median of 0.2 points (range, 0-6.3), and the median Harris Hip Score points was 99 (range, 29-100). CONCLUSION Primary THA through an anterior minimal invasive approach with the mentioned implants showed low revision rates and good to excellent clinical outcome after at least 10 years.
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Affiliation(s)
- Stefan Rahm
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Timo Tondelli
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Sylvain Steinmetz
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Pascal Schenk
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Claudio Dora
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Patrick O Zingg
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
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29
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Castagnini F, Bordini B, Yorifuji M, Giardina F, Natali S, Pardo F, Traina F. Highly Porous Titanium Cups versus Hydroxyapatite-Coated Sockets: Midterm Results in Metachronous Bilateral Total Hip Arthroplasty. Med Princ Pract 2019; 28:559-565. [PMID: 31079112 PMCID: PMC6944922 DOI: 10.1159/000500876] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/12/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE Highly porous titanium cups have been recently introduced, with contradictory outcomes. A retrospective consecutive case series involving bilateral metachronous total hip arthroplasties (THA) performed with 2 different cups, i.e., Fixa (F) and Fixa Ti-Por (T) (Adler Ortho, Milan, Italy), and the same stem, was evaluated. T sockets, manufactured using electron beam melting, were supposed to prove superior in terms of clinical results, survival rates, and radiographic parameters in comparison to hydroxyapatite-coated F cups with conventional porosity. SUBJECTS AND METHODS Twenty-four bilateral metachronous THAs with an F cup on one side and a T socket on the other side were evaluated. Preoperative and postoperative Harris hip scores (HHS) were collected for every patient. Radiographic signs of loosening were assessed. The radiographic signs of osseointegration (radiolucent lines, superolateral buttress, inferomedial buttress, radial trabeculae, and stress shielding) were evaluated. RESULTS No intraoperative complications occurred. The mean HHS score was excellent and comparable in both groups. At the mean follow-up of 134 months (F) and 79 months (T), no cup or liner revisions were performed. No radiographic signs of loosening were reported. All of the patients revealed 3 parameters of good bony ingrowth at least. Both groups showed similar radiographic parameters regarding osseointegration, which were stable over the time. Stress shielding was more evident in the T cohort (p =0.07). CONCLUSION Highly porous titanium cups produced using an additive manufacturing and electron beam melting technology achieved reliable midterm clinical and radiographic results not inferior to those of second-generation cups.
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Affiliation(s)
- Francesco Castagnini
- Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'Anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy,
| | - Barbara Bordini
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Makiko Yorifuji
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Federico Giardina
- Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'Anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Simone Natali
- Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'Anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesco Pardo
- Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'Anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesco Traina
- Ortopedia-Traumatologia e Chirurgia Protesica e dei Reimpianti d'Anca e di Ginocchio, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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