Why total knees fail-A modern perspective review

Table 2 Large data and registry data by total knee arthroplasty failure mechanism

Ref.	Knees	Loosening, %	Infection, %	Instability, %	Poly/Lysis, %	Other, %
Bozic et al[12]	60435	16	25	7	8
Delanois et al[13]	337597	20.3	20.4	7.5	2.6	12
Sadoghi et al[23]	36307	30	15	6	8
Australia 2003-2012[24]	31698	30	22	6	2
England/Wales 2011-2012[25]	5135	35	23	14	20
New Zealand 1999-2011[26]	4603	37	24	7	n/a
Norway 1994-2009[27]	3445	24	13	10	5
Sweden 2001-2010[28]	3375	26	23	13	5

Overall percentages are listed above.