PMID- 28412058 OWN - NLM STAT- MEDLINE DCOM- 20180226 LR - 20220408 IS - 1526-3231 (Electronic) IS - 0749-8063 (Linking) VI - 33 IP - 7 DP - 2017 Jul TI - Functional Outcomes and Cam Recurrence After Arthroscopic Treatment of Femoroacetabular Impingement in Adolescents. PG - 1361-1369 LID - S0749-8063(17)30118-4 [pii] LID - 10.1016/j.arthro.2017.01.044 [doi] AB - PURPOSE: To compare the functional outcomes after arthroscopic treatment of femoroacetabular impingement (FAI) in adolescent patients and non-adolescent patients, and to report on the rate of cam recurrence within 2 years after femoral osteoplasty in a limited sample of the adolescent group. METHODS: From 2010 to 2014, patients younger than 18 years with symptomatic FAI (alpha angle >50 degrees ) who underwent hip arthroscopy with minimum 2-year follow-up or reoperation were identified. A group of non-adolescent patients with identical inclusion criteria, except age of 18 years or older, was also identified for comparison. In addition, a separate group of adolescent patients with 2-year postoperative radiographs was reviewed for cam recurrence. Demographic data, operative data, and radiographic and clinical outcomes (modified Harris Hip Score [mHHS], Hip Outcome Score-Activities of Daily Living [HOS-ADL], Hip Outcome Score-Sport-Specific Subscale [HOS-SSS], and International Hip Outcome Tool 33 [iHOT-33] score) were collected. RESULTS: We identified 34 adolescent patients (38 hips) with an average age of 16 years (range, 13-17 years). The mean clinical follow-up period was 36.1 +/- 11.6 months (range, 24.1-71.7 months) and 29.6 +/- 2.4 months (range, 27.9-31.3 months) without and with reoperation, respectively. A control group of 296 non-adolescent patients (306 hips), with a mean age of 31 years (range, 18-59 years), was identified as our non-adolescent group. The mean clinical follow-up period was 34.1 +/- 11 months (range, 24.0-77.4 months) and 15.1 +/- 9.1 months (range, 3.6-34.6 months) without and with reoperation, respectively. Significant improvement was noted in adolescents in the changes in outcome scores (mHHS, 22.2 [95% confidence interval (CI), 15.4-29.0]; HOS-ADL, 18.6 [95% CI, 11.9-25.2]; HOS-SSS, 33.5 [95% CI, 24.5-42.5]; and iHOT-33 score, 30.5 [95% CI, 21.8-39.2]; P < .001). Similar improvements were observed in non-adolescents (mHHS, 21.0 [95% CI, 19.0-23.0]; HOS-ADL, 16.6 [95% CI, 14.6-18.6]; HOS-SSS, 30.1 [95% CI, 26.6-33.6]; and iHOT-33 score, 34.9 [95% CI, 31.5-38.3]; P < .001). There was no evidence of a difference in follow-up survey scores between groups (P > .203). Revision surgery was required in 2 adolescent hips (5.3% [95% CI, 1.5%-17.3%]) and 19 non-adolescent hips (6.2% [95% CI, 4.0%-9.5%]). Minimum 2-year radiographs were available for review in 24 adolescent patients (30 hips). The alpha angle (mean +/- standard deviation) was reduced from 55.4 degrees +/- 12.1 degrees preoperatively to 38.7 degrees +/- 4.9 degrees at 6 weeks postoperatively (mean difference, -16.4 degrees [95% CI, -19.8 degrees to -12.9 degrees ]; P < .001). At 2 years, the alpha angle remained at 39.2 degrees +/- 11.2 degrees , which did not differ from 6-week measurements (mean difference, 0.5 degrees [95% CI, -2.9 degrees to 3.9 degrees ]; P = .784). There were no cases of cam recurrence (0% [95% CI, 0%-11.4%]). CONCLUSIONS: Significant improvement in clinical outcomes can be anticipated after arthroscopic treatment of FAI in adolescents. From a limited sample of our adolescent population, the risk of cam recurrence appears low; however, further follow-up is needed to ensure this does not represent a biased sample of the initial population. LEVEL OF EVIDENCE: Level III, retrospective comparative study. CI - Copyright (c) 2017 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. FAU - Degen, Ryan M AU - Degen RM AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A.. Electronic address: ryan.degen@gmail.com. FAU - Mayer, Stephanie W AU - Mayer SW AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A. FAU - Fields, Kara G AU - Fields KG AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A. FAU - Coleman, Struan H AU - Coleman SH AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A. FAU - Kelly, Bryan T AU - Kelly BT AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A. FAU - Nawabi, Danyal H AU - Nawabi DH AD - Center for Hip Preservation, Hospital for Special Surgery, New York, New York, U.S.A. LA - eng PT - Journal Article DEP - 20170412 PL - United States TA - Arthroscopy JT - Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association JID - 8506498 SB - IM MH - Adolescent MH - Adult MH - *Arthroscopy MH - Case-Control Studies MH - Female MH - Femoracetabular Impingement/*surgery MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Patient Outcome Assessment MH - Recurrence MH - Reoperation MH - Retrospective Studies MH - Young Adult EDAT- 2017/04/17 06:00 MHDA- 2018/02/27 06:00 CRDT- 2017/04/17 06:00 PHST- 2016/08/24 00:00 [received] PHST- 2017/01/21 00:00 [revised] PHST- 2017/01/23 00:00 [accepted] PHST- 2017/04/17 06:00 [pubmed] PHST- 2018/02/27 06:00 [medline] PHST- 2017/04/17 06:00 [entrez] AID - S0749-8063(17)30118-4 [pii] AID - 10.1016/j.arthro.2017.01.044 [doi] PST - ppublish SO - Arthroscopy. 2017 Jul;33(7):1361-1369. doi: 10.1016/j.arthro.2017.01.044. Epub 2017 Apr 12.