Date

Study

Parameter

Details

1981

McKellop [117]

Pin-on-flat wear tests (MOP)

Adverse wear: PMMA debris on Ti64

1988

Agins [102]

Ti64 femoral heads (MOP)

Abandoned

1991

Jasty [103]

CoCr roughened by metal debris (MOP)

Rougher with NC-cups

1999

Iida [112]

Neck notch, metallosis (MOM)

Ti64 femoral neck

2003

Eickmann [21]

Impinged Ti64 femoral neck (COC)

“Twin” neck notches, elevated Ti64 rim

2005

Howie [61]

McKee-Farrar retrievals

Impingement CoCr debris, 100 um scratches

2005

Kim [27]

“Severe smears” on ceramic heads (COP)

PE-wear increased, metal smeared on ceramic

2007

Bal [22]

Black Ti64 transfer (COC )

Ti64 femoral necks, elevated cup rims

2007

Kligman [104]

Impinged polyethylene cups (MOP)

75% of cup retrievals

2010

Lee [31]

COC neck notches, black metal transfer

“Twin” neck notches in Figure 2(a)

2013

Clarke [83]

Impinged neck with “twin” notches (MOM)

Ti64 notches CoCr

2013

Clarke [58]

Impingement in 60 MOM retrievals

Impingement, CoCr debris, microgrooves

2014

Halim [86]

CoCr and Ti64 debris, MOM-simulator

Metal particles crushed in 10-second test

2015

Halim [116]

3rd body wear, MOM-simulator

Higher wear with Ti64 particles, black lubricants

2015

Donaldson [84]

MOM “double-notch” in Ti64 neck

Ti64 neck-notch model (wear 6 mm3/year)

2015

Tikekar [105]

CoCr heads, Ti64 transfer (MOP)

Ti64 roughness 1 - 36 μm on CoCr heads

2018

Elsissy [68]

3rd-body wear similar in RA and THA

CoCr debris (hip subluxation)

2018

Karachalios [80]

MOP outcomes, UK Joint Registry

NC-cup revisions = 2x CEM-cups