Table I.

Findings of FAACD on revision hip arthroscopy

	Age	Delamination	Wave sign		Defect found	Time to revision
No. hips	Years	Zone	Index HA	Revision HA	Zone	Months	Indication for revision	Re-repaired
1	19	I–II–III	Yes	No	No	13	Adhesion, residual FAI	No
2	19	I–II–III	Yes	No	No	18	Adhesion, residual FAI	No
3	39	I–II–III	Yes	No	Delamination I–II	20	Ongoing pain, residual FAI	Yes
4	58	I–II–III	Yes	Yes	Delamination I–II–III–IV	37	Ongoing pain, residual FAI	Yes
5	21	I–II–III	No	No	No	47	Adhesion, residual FAI	No
6	60	I–II–III	Yes	Yes	Delamination I–II–III	35	Ongoing pain, residual FAI	Yes
7	60	I–II–III	Yes	No	Delamination I–II–III	34	Ongoing pain, residual FAI	Yes
8	41	I–II–III	Yes	No	No	23	Adhesion, residual FAI	No
9	33	I–II–III	Yes	No	No	28	Adhesion, residual FAI	No
10	33	I–II–III	Yes	No	No	20	Adhesion, residual FAI	No
11	42	I–II–III	Yes	No	No	51	Ongoing pain after trauma	No
12	29	I–II–III	Yes	No	No	10	Adhesion, residual FAI	No
13	18	I–II–III	No	No	Delamination II–III	6	Ongoing pain, residual FAI	Yes

HA, hip arthroscopy; FAI, femoroacetabular impingement.