Comparison of a highly porous titanium cup (Tritanium) and a conventional hydroxyapatite-coated porous titanium cup: A retrospective analysis of clinical and radiological outcomes in hip arthroplasty among Japanese patients

Yoshioka, Shinji; Nakano, Shunji; Kinoshita, Yutaka; Nakamura, Masaru; Goto, Tomohiro; Hamada, Daisuke; Sairyo, Koichi

doi:10.1016/j.jos.2018.06.018

Cited by 30 publications

(20 citation statements)

References 21 publications

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“…Supplemental screw fixation was used more commonly in the HA-coated group (P < .001), so we could not determine whether the 3 surfaces would have been equally effective at achieving fixation without screws. The HAcoated acetabular cup has been available for almost 15 years and has been extensively studied with published results showing 98.5%-100% survivorship free of acetabular loosening at 1-8.8-year follow-up [18][19][20][21]. It has also received an Orthopedic Data Evaluation Panel (ODEP) 10A* rating with the current generation of highly crosslinked polyethylene liners [22].…”

Section: Discussionmentioning

confidence: 99%

Impact of Acetabular Implant Design on Aseptic Failure in Total Hip Arthroplasty

et al. 2021

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Section: Discussionmentioning

confidence: 99%

Impact of Acetabular Implant Design on Aseptic Failure in Total Hip Arthroplasty

et al. 2021

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“…Yoshioka et al also compared a group of Tritanium cup patients to a cohort of Trident HA cup patients [8]. Each group contained 130 cases with an average follow-up slightly more than 3 years.…”

Section: Discussionmentioning

confidence: 99%

“…Specifically we are reporting to add to the body of literature regarding the Stryker Trident Tritanium (Stryker, Mahwah, NJ) acetabular component. There have been mixed reports on the short and midterm clinical and radiographic outcomes of patients undergoing total hip arthroplasty (THA) using the Trident Tritanium primary acetabular shell [1][2][3][4][5][6][7][8]. In 2013, Naziri et al reported on patients undergoing primary hip replacement surgery using the Tritanium cup and showed 100% survival of the acetabular component at an average of 36 months follow-up [1].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, a six to ten year follow-up study of 62 patients undergoing revision hip arthroplasty using the Tritanium cup demonstrated 98% implant survivorship [2]. However, authors of more recent published studies voiced concerns regarding diminished implant lon-gevity and poor clinical outcome scores in primary THA [9,8,3]. Carli et al reported only two failures in 104 primary hips at a 5-year minimum follow-up study, but the radiographic analysis showed potentially pending failures with 40% of patients having radiosclerotic lines in 2 or more DeLee zones [3].…”

Section: Introductionmentioning

confidence: 99%

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Early Term Radiographic Follow-Up of the Trident Tritanium Acetabular Component

2021

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INTRODUCTION: The purpose of this study was to evaluate the two year clinical and radiographic outcomes of patients undergoing a primary total hip arthroplasty (THA) using the Trident Tritanium primary Cup. METHODS: 197 patients who underwent a direct anterior THA using a Tritanium acetabular component between 2011 and 2015 were retrospectively reviewed by two surgeons from a single institution. The investigators, along with an independent physician, separately reviewed radiographs blinded to clinical data looking for radiolucent lines adjacent to the acetabular cup using the Charnley-DeLee zones. Clinical results were measured using acetabular revision surgery as an end point for failure. According to the American Academy of Orthopaedic Surgeons Levels of Evidence, this study was consistent with a Level III Therapeutic study. RESULTS: 101 (48.73%) subjects did not exhibit any radiolucent lines around the acetabular component. 53 (26.90%) subjects displayed radiolucency in only one zone. 27 (13.71%) subjects displayed radiolucency in two zones, and 16 (8.12%) displayed radiolucency in all three zones. Radiolucency was most prevalent in zone 1 at 2 years with 83 (42.13%) subjects displaying radiolucency. There were five (2.54%) acetabular failures within two years of the index surgery. Of those 5 subjects, 3 displayed radiolucency in 1 zone, 2 displayed radiolucency in >1 zone, and 2 displayed radiolucencies >1 mm. CONCLUSION: In our study, the Tritanium Cup demonstrated a 2.54% failure rate for aseptic loosening at 2 year follow-up. In addition, 48.73% of patients displayed a radiolucent line in at least one Charnley-DeLee zone. We also observed a progression of radiolucencies between the 6 month radiographs and the 2 year radiographs.

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“…(15) However, in clinical reports of implants with a 3D porous structure, a high rate of radiolucent lines was observed. (16)(17)(18) Radiolucent lines are said to appear because of the brous xation between the bone and components and occur with micromotion of ≥150 μm. (19) The purposes of this study were to investigate the mid-term clinical results of THA using a 3D porous component, including the presence or absence of radiolucent lines, and to analyse the micromotion at the interface of the 3D acetabular component using nite element (FE) analysis.…”

Section: Introductionmentioning

confidence: 99%

Mid-Term Results of Total Hip Arthroplasty Using A Three-Dimensional Porous Titanium Acetabular Cup: An Examination of Micromotion Using Subject-Specific Finite Element Analysis

Miyagawa

Matsumoto

Komura

et al. 2021

Preprint

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Background: We investigated the mid-term clinical and radiological results of total hip arthroplasty (THA) using a three-dimensional (3D) porous titanium cup and analysed the micromotion at the interface of the cup using subject-specific finite element (FE) analysis. Methods: We evaluated 73 hips of 65 patients (6 men and 59 women; mean age at the time of surgery 62.2 years, range 45-86 years) who had undergone THA using a 3D porous titanium cup. Clinical evaluation was performed using the Japanese Orthopaedic Association (JOA) hip score system. We assessed the fixation of the acetabular component based on the presence of radiolucent lines and cup migration using anteroposterior radiographs. Subject-specific FE models were constructed from computed tomography data. Results: The JOA score improved from a preoperative mean of 52.2 (range, 23-82) to a mean of 87.8 (range, 71-100) at the final follow-up. None of the patients underwent revisions during the follow-up period. Radiolucent lines were observed in 26 cases (35.6%) and frequently appeared at DeLee and Charnley Zone 3. In the FE analysis, the micromotion at DeLee and Charnley Zone 3 was significantly larger than that at Zones 1 and 2. Furthermore, micromotion was large in the groups in which radiolucent lines appeared at Zone 3. Conclusions: The mid-term clinical outcome of THA using a 3D porous titanium cup was excellent. However, radiolucent lines frequently appeared at DeLee and Charnley Zone 3. FE analysis indicated that micromotion was large at the same site, strongly suggesting that it contributes to the emergence of radiolucent lines. The 3D porous titanium cups are useful in THA, and with improvements focused on micromotion, we anticipate better long-term outcomes.

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Comparison of a highly porous titanium cup (Tritanium) and a conventional hydroxyapatite-coated porous titanium cup: A retrospective analysis of clinical and radiological outcomes in hip arthroplasty among Japanese patients

Cited by 30 publications

References 21 publications

Impact of Acetabular Implant Design on Aseptic Failure in Total Hip Arthroplasty

Impact of Acetabular Implant Design on Aseptic Failure in Total Hip Arthroplasty

Early Term Radiographic Follow-Up of the Trident Tritanium Acetabular Component

Mid-Term Results of Total Hip Arthroplasty Using A Three-Dimensional Porous Titanium Acetabular Cup: An Examination of Micromotion Using Subject-Specific Finite Element Analysis

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