Oneyear mortality

6 ^{a}

Randomized trials

Very serious^{b}

No serious inconsistency ^{c}

Serious^{d}

Serious^{a,e}

None^{c}

53/393 (13.5 %)

64/423 (15.1 %)

RR 0.91 (0.65–1.27)

14 fewer per 1000 (from 53 fewer to 41 more)

Very low

Critical

13.6 %

12 fewer per 1000 (from 48 fewer to 37 more)

Revision surgery

8 ^{c}

Randomized trials

Very serious^{b}

No serious inconsistency ^{c}

Serious^{d}

Serious^{f}

None^{c}

19/472 (4 %)

36/514 (7 %)

RR 0.59 (0.32–1.09)

29 fewer per 1000 (from 48 fewer to 6 more)

Very low

Important

7.1 %

29 fewer per 1000 (from 48 fewer to 6 more)

Dislocation

6 ^{g}

Randomized trials

Very serious^{b}

No serious inconsistency ^{c}

Serious^{d}

Serious^{h,i}

None^{c}

33/369 (8.9 %)

14/411 (3.4 %)

RR 2.53 (1.05–6.1)

52 more per 1000 (from 2 more to 174 more)

Very low

Important

0 %

0 more per 1000 (from 0 more to 0 more)

Major complications

5 ^{j}

Randomized trials

Very serious^{b}

No serious inconsistency ^{c}

Serious^{d}

Serious^{j,k}

None^{c}

76/302 (25.2 %)

80/330 (24.2 %)

RR 1.07 (0.76–1.5)

17 more per 1000 (from 58 fewer to 121 more)

Very low

Important

8.2 %

6 more per 1000 (from 20 fewer to 41 more)

Minor complication

5 ^{l}

Randomized trials

Very serious^{b}

No serious inconsistency^{3}

Serious^{d}

Serious^{l,m}

None^{c}

38/302 (12.6 %)

45/330 (13.6 %)

See comment

10 fewer per 1000 (from 60 fewer to 40 more)

Very low

Important

7 %

5 fewer per 1000 (from 31 fewer to 20 more)
