A literature synthesis indicates very low quality, but consistent evidence of improvements in function after surgical interventions for primary osteoarthritis of the elbow.

When the mean duration of followup for the studies on open joint debridement was plotted against the mean increase in range of flexion-extension arc, an interesting trend was noted in that the increase in flexion-extension arc was slow in the initial years, and it gradually increased during the middle of the timeframe with the highest gain in range of motion between the 3rd and 8th years of followup and then started to taper as the duration of followup increased (see Figure 2 ).

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