Table 2.

Indications for performing secondary procedures either by intention (planned, scheduled) or, based on failed primary (index) management

Indications for secondary procedures (reoperations)
Severe complications or major events	1	Wound disruption
	2	Deep infection
	3	Deep hematoma
	4	Refracture (inadequate trauma)
	5	Peri-implant fracture
	6	Osteonecrosis
	7	Delayed/non union
	8	Malunion
	9	Posttraumatic arthritis
	10	Implant broken through joint surface
	11	Implant failure
	12	Loosening of arthroplasty material
	13	Dislocation after hemiarthroplasty
	14	Dislocation after total joint replacement
	15	Debridement (secondary soft tissue damage)
	16	Other (serious reasons)
Mild complications or minor events	17	Failed index conservative procedure
	18	Superficial infection
	19	Superficial hematoma
	20	Refracture (adequate trauma)
	21	Discomfort from osteosynthetic material
	22	Other (inconvenient reasons)
Planned/intended events	23	Debridement (primary soft tissue damage)
	24	Planned final fixation
	25	Routine metal removal
	26	Other (intended reasons)