Aseptic loosening of an APTIS distal radioulnar joint arthroplasty – Case report

Bennett, Karis; Kamineni, Srinath

doi:10.1016/j.tcr.2019.100196

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…However, complications rates were 28 percent in both ulnar head and total joint replacement groups, 15 and reports on DRUJ arthroplasty complications have emerged. [24][25][26][27] The purpose of this study was to evaluate the outcome of patients who had a primary ulnar head prosthesis or semi-constrained implant in a single institution over a 20-year period. We wanted to assess clinical outcomes in terms of Mayo Wrist Score, pain, grip strength and range of motion, as well as reoperations and explantations and implant survival.…”

Section: Introductionmentioning

confidence: 99%

Twenty-Year Experience With Primary Distal Radioulnar Joint Arthroplasty From a Single Institution

Amundsen

Rizzo

Berger

et al. 2023

The Journal of Hand Surgery

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Section: Introductionmentioning

confidence: 99%

Twenty-Year Experience With Primary Distal Radioulnar Joint Arthroplasty From a Single Institution

Amundsen

Rizzo

Berger

et al. 2023

The Journal of Hand Surgery

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“…The constrained design increases stress transfer through the implant and implant bone interface. 41 Although reports of aseptic loosening with the Aptis have been published, 12,[42][43][44] this seems to be relatively rare and the implant is semiconstrained, not fully constrained, allowing relative length motion between the radius and ulna during prosupination. In contrast, a fully constrained total DRUJ implant was used in one study and had many implant failures.…”

Section: Discussionmentioning

confidence: 99%

Outcomes following Distal Radioulnar Joint Arthroplasty in the Setting of Total or Partial Wrist Fusion

et al. 2022

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Purpose To evaluate the functional outcome and complications following primary ulnar head or total distal radial ulnar joint (DRUJ) arthroplasty in patients who have a partial or total wrist fusion. Methods We conducted a retrospective review of 33 primary DRUJ implants in 31 patients who had a partial or total wrist fusion. Follow-up time averaged 67 months. There were 11 partial and 22 total wrist fusions with 22 ulnar head prosthesis and 11 total DRUJ implants. The mean age of the patients was 49 years. Eighty-one percent had previous surgeries with an average number of 4.6 previous wrist procedures. Pre- and postoperative pain levels were recorded. Mayo Wrist Scores were calculated. Grip strength, range of motion (ROM), and post-operative complications were noted. Results The pain scores improved in 67% of the patients. The Mayo Wrist Score improved significantly from a mean of 39 preoperatively to 51 postoperatively. The grip strength and pro-supination remained stable. The wrist ROM also remained stable in the patients with partial wrist fusions. During the follow-up period, 10 (30%) of the DRUJ implants were explanted, with a trend toward higher explantation rates in total wrist fusions with one in the partial fusion group and nine in the total wrist fusion group. Four of the explantations happened in the first postoperative year. Nineteen (61%) of the patients required a second surgery for a DRUJ implant-related complication; this rate was similar between the partial and total fusion groups. Conclusions DRUJ replacement resulted in improved pain scores and Mayo wrist scores in the majority of patients; however, the combination of primary DRUJ arthroplasty and total wrist fusion was associated with high complication rates. Surgeons should be aware of the high complication rate seen with DRUJ arthroplasty when combined with total wrist fusion.

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“…However, metallic materials were preferred due to their higher fatigue life and higher load bearing capacity but, suffer from the mismatch of strength with the bone of the host. The mismatch results in stress shielding (Denard et al , 2018; Filardi, 2018; Zhang et al , 2016), aseptic loosening (Bennett and Kamineni, 2019; Maradit Kremers et al , 2017; Schiffner et al , 2019), bone fracture during the implantation (Brownhill et al , 2012), etc. leading to failure of the implant before its expected functional life.…”

Section: Introductionmentioning

confidence: 99%

Design and development of 3D printing assisted microwave sintering of elbow implant with biomechanical properties similar tohuman elbow

Singh

Garg

Pandey

et al. 2021

RPJ

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Purpose The purpose of this paper is to establish a methodology for the design and development of patient-specific elbow implant with an elastic modulus close to that of the human bone. One of the most preferred implant material is titanium alloy which is about 8 to 9 times higher in strength than that of the human bone and is the closest than other metallic biomedical materials. Design/methodology/approach The methodology begins with the design of the implant from patient-specific computed tomography information and incorporates the manufacturing of the implant via a novel rapid prototyping assisted microwave sintering process. Findings The elastic modulus and the flexural strength of the implant were observed to be comparable to that of human elbow bones. The fatigue test depicts that the implant survives the one million cycles under physiological loading conditions. Other mechanical properties such as impact energy absorption, hardness and life cycle tests were also evaluated. The implant surface promotes human cell growth and adhesion and does not cause any adverse or undesired effects i.e. no cytotoxicity. Practical implications Stress shielding, and therefore, aseptic loosening of the implant shall be avoided. In the event of any trauma post-implantation, the implant would not hurt the patient. Originality/value The present study describes a methodology for the first time to be able to obtain the strength required for the medical implant without sacrificing the fatigue life requirement.

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Aseptic loosening of an APTIS distal radioulnar joint arthroplasty – Case report

Cited by 6 publications

References 11 publications

Twenty-Year Experience With Primary Distal Radioulnar Joint Arthroplasty From a Single Institution

Twenty-Year Experience With Primary Distal Radioulnar Joint Arthroplasty From a Single Institution

Outcomes following Distal Radioulnar Joint Arthroplasty in the Setting of Total or Partial Wrist Fusion

Design and development of 3D printing assisted microwave sintering of elbow implant with biomechanical properties similar tohuman elbow

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