The advanced ceramic coated implant systems (ACCIS) hip resurfacing prosthesis

Hamelynck, Karel J.; Woering, R.G.

doi:10.1533/9780857096203.1.3

Cited by 3 publications

(11 citation statements)

References 32 publications

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“…While studies have shown that MoM hip prostheses have lower wear volumes than metal-on-polyethylene (MoP) prostheses, the number of wear particles released by a MoM hip prosthesis is substantially higher (typically 7–30 times). 1 In the quest for lower wear rates and higher corrosion resistance, other designs of artificial hip joint have been developed and implanted. One of these is the advanced ceramic-coated implant systems (ACCIS) hip prosthesis, a ceramic surface-engineered hip resurfacing, manufactured from cobalt chromium molybdenum (CoCrMo) with titanium niobium nitride (TiNbN) coating.…”

Section: Introductionmentioning

confidence: 99%

“…One of these is the advanced ceramic-coated implant systems (ACCIS) hip prosthesis, a ceramic surface-engineered hip resurfacing, manufactured from cobalt chromium molybdenum (CoCrMo) with titanium niobium nitride (TiNbN) coating. 1,2 According to the manufacturer, the introduction of a coating was intended to reduce wear, prevent corrosion and reduce metal ion release. 2…”

Section: Introductionmentioning

confidence: 99%

“…1,2 According to the manufacturer, the introduction of a coating was intended to reduce wear, prevent corrosion and reduce metal ion release. 2…”

Section: Introductionmentioning

confidence: 99%

“…ACCIS hip prostheses are cast and heat treated to reduce the size of block carbides on the metal surfaces, as these may cause wear via abrasion. 1,2 The surfaces are then polished before undergoing a surface microfinish to remove asperities down to a nanometre level. 1,2 A TiNbN coating with a nominal thickness of 300 ± 50 µm is then applied to the surfaces via the process of physical vapour deposition (PVD).…”

Section: Introductionmentioning

confidence: 99%

“…1,2 The surfaces are then polished before undergoing a surface microfinish to remove asperities down to a nanometre level. 1,2 A TiNbN coating with a nominal thickness of 300 ± 50 µm is then applied to the surfaces via the process of physical vapour deposition (PVD). 1,2 This is said to alter the surface chemical properties of a material without affecting the macromaterial and biochemical properties.…”

Section: Introductionmentioning

confidence: 99%

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Failure of an ACCIS metal-on-metal hip resurfacing prosthesis: A case report

Bone

Naylor

2017

Proc Inst Mech Eng H

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The introduction of coatings on joint replacements was intended to reduce wear volumes, prevent corrosion and reduce metal ion release. However, retrieval analysis to confirm their in vivo performance has been limited. The aim of study was to examine the coating on a retrieved hip prosthesis to determine whether substantial damage or wear had occurred. A single advanced ceramic-coated implant systems titanium niobium nitride-coated hip resurfacing prosthesis was retrieved for examination. Wear volumes and surface roughness were measured to quantify the damage to the articulating surfaces. The coating had been completely removed from substantial parts of both the femoral head and the acetabular cup, corresponding to areas of wear as measured by a coordinate measuring machine. The total wear rate (61 mm/year) was high and corresponded with the high metal ion levels recorded pre-operatively (83 ppb chromium and 110 ppb cobalt). Roughness data indicated that the coating has a lower roughness than the substrate and substantially lower than the boundary between the coating and the substrate. The wear rate is very high and it is likely that damage to the coating resulted in accelerated wear of the prosthesis. No sudden change between the boundary of the substrate and the coating was observed that would indicate delamination or failure of the coating substrate interface layer. While coatings may offer some theoretical benefits, they may also result in catastrophic failure of the prosthesis.

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Section: Introductionmentioning

confidence: 99%