PMID- 32392094 OWN - NLM STAT- MEDLINE DCOM- 20200709 LR - 20220415 IS - 1941-0921 (Electronic) IS - 1941-7381 (Print) IS - 1941-0921 (Linking) VI - 12 IP - 4 DP - 2020 Jul/Aug TI - Preoperative Hip Extension Strength Is an Independent Predictor of Achieving Clinically Significant Outcomes After Hip Arthroscopy for Femoroacetabular Impingement Syndrome. PG - 361-372 LID - 10.1177/1941738120910134 [doi] AB - BACKGROUND: The effect of preoperative hip strength on outcomes after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) is unclear. The purpose of this study was to determine whether preoperative isometric hip strength is associated with outcome scores at 6 months as well as achieving the minimal clinically important difference (MCID) and patient acceptable symptomatic state (PASS) in patients undergoing hip arthroscopy for FAIS. HYPOTHESIS: Increased preoperative isometric strength will be correlated with short-term postoperative outcomes and will be predictive of achieving higher functional status. STUDY DESIGN: Case series. LEVEL OF EVIDENCE: Level 4. METHODS: Data from 92 consecutive patients undergoing primary hip arthroscopy for treatment of FAIS from March through August 2018 were analyzed. All patients included in the analysis had preoperative measures of isometric hip strength on both affected and unaffected limbs, as well as preoperative and 6-month patient-reported outcome (PRO) scores. Analysis was performed to determine correlations between normalized isometric hip strength measurements and PROs and whether strength measurements were predictive of achieving MCID or PASS. RESULTS: A total of 74 (80.4%) patients had 6-month PROs and were included in the final analysis. Hip extension strength on both sides was correlated with all postoperative PROs (all P > 0.05). Abduction strength on both sides was correlated with postoperative Hip Outcome Score-Activities of Daily Living subscale score, achieving MCID on at least 1 score threshold, and reaching the international Hip Outcome Tool-12 threshold score for achieving PASS (all P < 0.05). Regression analysis showed that extension strength on the affected side was the only strength measurement predictor of achieving PASS (1.043; P = 0.049). CONCLUSION: Preoperative isometric hip extension and abduction strength are correlated with 6-month postoperative PRO scores. Furthermore, hip extension strength is a predictor of achieving clinically meaningful outcomes. CLINICAL RELEVANCE: This study highlights the possible importance of preoperative optimization of hip function to maximize outcomes in patients undergoing hip arthroscopy for FAIS. FAU - Beck, Edward C AU - Beck EC AD - Department of Orthopaedic Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina. FAU - Nwachukwu, Benedict U AU - Nwachukwu BU AD - Division of Sports Medicine, Department of Orthopedic Surgery, Hospital for Special Surgery, New York, New York. FAU - Krivicich, Laura M AU - Krivicich LM AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois. FAU - Malloy, Philip AU - Malloy P AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois. FAU - Suppauksorn, Sunikom AU - Suppauksorn S AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois. FAU - Jan, Kyleen AU - Jan K AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois. FAU - Nho, Shane J AU - Nho SJ AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois. LA - eng PT - Journal Article DEP - 20200511 PL - United States TA - Sports Health JT - Sports health JID - 101518422 SB - IM MH - Adult MH - *Arthroscopy/rehabilitation MH - Female MH - Femoracetabular Impingement/*physiopathology/*surgery MH - Hip Joint/*physiopathology MH - Humans MH - Isometric Contraction/physiology MH - Male MH - Minimal Clinically Important Difference MH - Muscle Strength/*physiology MH - Patient Reported Outcome Measures MH - *Preoperative Period MH - Regression Analysis MH - Sex Factors PMC - PMC7787575 OTO - NOTNLM OT - FAIS OT - MCID OT - PASS OT - preoperative hip strength COIS- The following author declared potential conflicts of interest: S.J.N. is a paid consultant for Ossur and has received personal fees from Ossur and Springer. EDAT- 2020/05/12 06:00 MHDA- 2020/07/10 06:00 PMCR- 2021/05/11 CRDT- 2020/05/12 06:00 PHST- 2020/05/12 06:00 [pubmed] PHST- 2020/07/10 06:00 [medline] PHST- 2020/05/12 06:00 [entrez] PHST- 2021/05/11 00:00 [pmc-release] AID - 10.1177_1941738120910134 [pii] AID - 10.1177/1941738120910134 [doi] PST - ppublish SO - Sports Health. 2020 Jul/Aug;12(4):361-372. doi: 10.1177/1941738120910134. Epub 2020 May 11.