Outcome of the Stryker® Trident ‘All-Poly’ Constraint Acetabular Insert: A District General Hospital Experience

Harrison, Simon J.; Leeder, Daniel J; McWilliams, T. G.; Metcalf, Robert W.; Sidhom, Sameh

doi:10.5301/hipint.5000263

Cited by 4 publications

(4 citation statements)

References 37 publications

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“…20 Short-term results of TCLs showed an overall survival rate ranging from 86.2% to 98.8% up to 4.6 years. 7,21,25,30–32 The tripolar design showed favourable outcomes with dislocation rates of 6% at 10 years. 10 A recent study with the longest follow-up demonstrated 90.6% survival rate with dislocation as the endpoint at 20 years with the TCL.…”

Section: Discussionmentioning

confidence: 96%

“…24 As a result, the optimal position and alignment of the CL are essential to avoid complications. 25 Acetabular inclination between 35° and 50° and anteversion of 0° and 20° has been suggested to maximise outcomes. 25,26 In our opinion, the proper orientation must be weighted based on the primary or revision setting and the need to revise or not the stem.…”

Section: Discussionmentioning

confidence: 99%

“…25 Acetabular inclination between 35° and 50° and anteversion of 0° and 20° has been suggested to maximise outcomes. 25,26 In our opinion, the proper orientation must be weighted based on the primary or revision setting and the need to revise or not the stem. In our case series, every effort was made to implant the liner in a neutral position with no excess anteversion.…”

Section: Discussionmentioning

confidence: 99%

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Constrained liners revisited: favourable mid-term results in patients with high-risk of dislocation: technical considerations for the optimal outcome

et al. 2021

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Background: The outcomes of constrained liners (CLs) in total hip arthroplasty (THA) remain inconclusive. We evaluated the mid-term performance of CLs in a consecutive series of high-risk dislocation patients undergoing primary or revision THA performed by a single surgeon. The survival, dislocation rate, complications, and functional patients’ scores were assessed. Surgical tips to enhance outcomes were reviewed. Methods: 45 patients who received the Trident Tripolar CL between 2010 to 2019 were retrospectively evaluated from Arthroplasty Registry Thessaloniki. There were 17 primary and 28 revision THAs. The primary indications for using CL were severe abductor insufficiency or comorbidities, increasing the dislocation risk in primary, and recurrent dislocation or abductor insufficiency in revision THAs. The mean patient’s age was 68.5 (±14.5) years, and the mean follow-up 3.81 (±1.66) years. Results: There were 2 dislocations and 1 deep infection in the revision group. For any reason, the cumulative 6-year survival rate was 93.3%, 100% for primary, and 89.3% for revision THAs. The mean overall CL survival was 76.3 months for any reason (95% CI, 68.1–84.5) and 80.5 months for dislocation (95% CI, 75.8–85.2). The mean postoperative functional scores were significantly improved ( p < 0.001) at the latest follow-up. Conclusions: CLs can provide hip stability and durable fixation in selected low-demand patients with high-risk for dislocation after primary and revision THA at mid-term follow-up. Careful patient selection and the refined surgical technique aiming at the neutral liner position and considering the high CLs’ offset relative to stem-neck impingement are necessary to maximise outcomes.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Constrained liners revisited: favourable mid-term results in patients with high-risk of dislocation: technical considerations for the optimal outcome

et al. 2021

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“…Factors such as poor soft tissue quality and trochanteric insufficiency may exist in patients undergoing surgery that increase the instability of the construct and risk of dislocation. One alternative to reduce dislocation rates in such patient populations is the use of a constrained acetabular liner [ 22 ]. Constrained liners may put more stress on the fixation of the acetabular component.…”

Section: Introductionmentioning

confidence: 99%

Articulating Hip Spacers with a Constrained Acetabular Liner: Effect of Acetabular Bone Loss and Cementation Quality

Glenn,

Apple,

Mears

et al. 2023

Antibiotics

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Articulating hip spacers for periprosthetic joint infection (PJI) offer numerous advantages over static spacers such as improved patient mobilization, hip functionality, and soft tissue tension. Our study aimed to determine complication rates of a functional articulating spacer using a constrained liner to determine the role of acetabular cementation mantle and bone loss on the need for second-stage surgery. A retrospective review of 103 patients was performed and demographic information, spacer components and longevity, spacer-related complications, reinfection rates, and grade of bone loss and acetabular cement mantle quality were determined. There was no significant difference in spacer-related complications or reinfection rate between PJI and native hip infections. 33 of 103 patients (32.0%) elected to retain their spacers. Between patients who retained their initial spacer and those who underwent reimplantation surgery, there was not a significant difference in cement mantle grade (p = 0.52) or degree of bone loss (p = 0.78). Functional articulating antibiotic spacers with cemented constrained acetabular liners demonstrate promising early results in the treatment of periprosthetic and native hip infections. The rate of dislocation events was low. Further efforts to improve cement fixation may help decrease the need for second-stage reimplantation surgery.

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Complications of Total Hip Arthroplasty

Tokgoz

2022

Total Hip Arthroplasty

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Outcome of the Stryker® Trident ‘All-Poly’ Constraint Acetabular Insert: A District General Hospital Experience

Abstract: In the short to medium term, acetabular constraint offers a useful primary or revision option in patients at risk or with recurrent dislocation.

Cited by 4 publications

References 37 publications

Constrained liners revisited: favourable mid-term results in patients with high-risk of dislocation: technical considerations for the optimal outcome

Constrained liners revisited: favourable mid-term results in patients with high-risk of dislocation: technical considerations for the optimal outcome

Articulating Hip Spacers with a Constrained Acetabular Liner: Effect of Acetabular Bone Loss and Cementation Quality

Complications of Total Hip Arthroplasty

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