(a)
(b)
(c)
(d)
(e)
(f)
Figure 1: Peroperative situation. Posterior arthrotomy (a); marking and preservation of the ulnar nerve (yellow loop) (b); debridement of the ulnohumeral joint (c, d); good cartilage quality on the radial head (d); debrided ulnohumeral joint (e); interposition arthroplasty with sutured fascia lata graft, like a waterfall (f).