PMID- 32828933 OWN - NLM STAT- MEDLINE DCOM- 20210525 LR - 20210525 IS - 1526-3231 (Electronic) IS - 0749-8063 (Linking) VI - 37 IP - 1 DP - 2021 Jan TI - Femoral Derotation Osteotomy Improves Hip and Spine Function in Patients With Increased or Decreased Femoral Torsion. PG - 111-123 LID - S0749-8063(20)30686-1 [pii] LID - 10.1016/j.arthro.2020.08.008 [doi] AB - PURPOSE: To evaluate the outcomes of proximal femoral derotation osteotomy (PFDO) on the hip and spine function of patients with abnormal femoral torsion. METHODS: This retrospective study included patients who underwent PFDO to treat increased or decreased femoral torsion between July 2014 and February 2019. The exclusion criteria were: previous fracture, fixation of slipped capital femoral epiphysis or osteotomy in the ipsilateral femur; PFDO associated to varus or valgus osteotomy; Tonnis grade 2 or 3 osteoarthritis; and PFDO performed to treat knee abnormalities. Hip function was assessed through the modified Harris Hip Score (mHHS). A subgroup of consecutive patients with low back pain before the PFDO and operated after 2017 had the spine function assessed through the Oswestry disability index (ODI). RESULTS: A total of 37 hips (34 patients) were studied: 15 hips with increased femoral torsion and 22 with decreased femoral torsion. Eight patients were male and 26 were female. The average age at PFDO was 33 years (range, 15-54 years). At a mean follow-up of 24 months (range, 12-65 months), the mean mHHS improved from 58.1 +/- 14.3 before PFDO to 82 +/- 15.6 at the most recent follow-up (P < .001). Improvement in the mHHS above the minimum clinically important difference (MCID) was observed in 33 hips (89%). In the subgroup of 14 consecutive patients with ODI available, the ODI improved from a mean of 45% +/- 16% before the PFDO to 22% +/- 17% at the most recent follow-up (P = .001). Nine (64.3%) of the 14 patients presented improvement in the ODI above the MCID. Revision procedure with a larger intramedullary nail was necessary in 2 hips to treat nonunion. CONCLUSION: Proximal femoral derotation osteotomy improves the hip and spine function in patients with increased or decreased femoral torsion and nonarthritic hips. LEVEL OF EVIDENCE: Level IV, therapeutic case series. CI - Copyright (c) 2020 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. FAU - Hatem, Munif AU - Hatem M AD - Baylor University Medical Center at Dallas, Dallas, Texas, U.S.A.. Electronic address: munifhatem@gmail.com. FAU - Khoury, Anthony Nicholas AU - Khoury AN AD - Baylor University Medical Center at Dallas, Dallas, Texas, U.S.A. FAU - Erickson, Lane Richard AU - Erickson LR AD - Baylor University Medical Center at Dallas, Dallas, Texas, U.S.A. FAU - Jones, Alan Leslie AU - Jones AL AD - Baylor University Medical Center at Dallas, Dallas, Texas, U.S.A. FAU - Martin, Hal David AU - Martin HD AD - Baylor University Medical Center at Dallas, Dallas, Texas, U.S.A. LA - eng PT - Journal Article DEP - 20200821 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 CIN - Arthroscopy. 2021 Jan;37(1):124-127. PMID: 33384075 MH - Adolescent MH - Adult MH - Arthroscopy MH - Disability Evaluation MH - Female MH - Femur/physiopathology/*surgery MH - Follow-Up Studies MH - Hip Joint/*physiopathology MH - Humans MH - Male MH - Middle Aged MH - Osteotomy/*methods MH - Range of Motion, Articular/physiology MH - Retrospective Studies MH - Spine/*physiopathology MH - Torsion Abnormality/physiopathology/*surgery MH - Young Adult EDAT- 2020/08/24 06:00 MHDA- 2021/05/26 06:00 CRDT- 2020/08/24 06:00 PHST- 2020/02/03 00:00 [received] PHST- 2020/08/11 00:00 [revised] PHST- 2020/08/12 00:00 [accepted] PHST- 2020/08/24 06:00 [pubmed] PHST- 2021/05/26 06:00 [medline] PHST- 2020/08/24 06:00 [entrez] AID - S0749-8063(20)30686-1 [pii] AID - 10.1016/j.arthro.2020.08.008 [doi] PST - ppublish SO - Arthroscopy. 2021 Jan;37(1):111-123. doi: 10.1016/j.arthro.2020.08.008. Epub 2020 Aug 21.