PMID- 34664420 OWN - NLM STAT- MEDLINE DCOM- 20211122 LR - 20211122 IS - 1757-7861 (Electronic) IS - 1757-7853 (Print) IS - 1757-7853 (Linking) VI - 13 IP - 6 DP - 2021 Aug TI - Microfracture of Acetabular Rim After Segmental Labral Resection to Restore the Morphology and Function of Labrum: A Retrospective Study of More than 2 Years Follow-up. PG - 1853-1862 LID - 10.1111/os.13131 [doi] AB - OBJECTIVE: To report on the clinical outcome of patients undergoing combined arthroscopic treatment of labral resection and microfracture at the rim of acetabulum at a minimum 2-year follow-up. METHODS: The retrospective study included 38 patients undergoing hip arthroscopy for irreparable labral injury from 24 February 2014 to 26 February 2018. Thirteen patients were excluded owing to patient refusal of participation and concomitant diseases like synovial chondromatosis and dysplasia hip. The study group consisted of patients undergoing combined arthroscopic labral resection and microfracture at the rim of acetabulum (MICRO Group: 20 patients), arthroscopic labral resection alone (RESEC Group: five patients). Postoperative three-dimensional (3D) double-echo steady-state (DESS) sequence with radial imaging at 3 Tesla were obtained and fluoroscopic image of the involved hip under distraction were used to observe the restoration of vacuum effect. Patient-reported outcome scores (PROs) including the Harris Hip Score (HHS), Visual Analogue Score (VAS), Hip Outcome Score Activities of Daily Living Subscale (HOS-ADL), Hip Outcome Score Sport-Specific Subscale (HOS-SSS) were collected and compared between two groups. RESULTS: All patients were followed up for at least 6 months. The follow-up time of RESEC group is longer than MICRO group (46.6 months vs 23.9 months, P < 0.05). The 3D DESS imaging demonstrated intermediate signal intensity at the relative area where the labrum resected followed by microfracture at the acetabular rim in MICRO group. Meanwhile, regrowth of labrum-like tissue was not observed in MRI imaging of the RESEC group. Furthermore, vacuum effect was more apparent in MICRO group compared with RESEC group. All PROs in both groups showed a statistically significant improvement at follow-up compared with preoperative levels. RESEC group: HHS (73.0 vs 93.8, P < 0.05); HOS-ADL (51.5 vs 89.1, P < 0.05); HOS-SSS (47.8 vs 88.3, P < 0.05); VAS (6.4 vs 2.0, P < 0.05). MICRO group: HHS (70.5 vs 91.5, P < 0.05); HOS-ADL (52.4 vs 87.0, P < 0.05); HOS-SSS (48.1 vs 86.5, P < 0.05); VAS (6.3 vs 1.6, P < 0.05). One patient of MICRO group had transient neurapraxias of the pudendal nerve that resolved completely by 3 months. There showed no statistically significant difference between groups regarding the preoperative and postoperative PROs. CONCLUSION: Compared to labral resection, combined arthroscopic labral resection and microfracture at the rim of acetabulum is able to fulfill the labral defect area with the potential to restore the seal effect of labrum as an effective and safe option for irreparable segmental labral tears. CI - (c) 2021 The Authors. Orthopaedic Surgery published by Chinese Orthopaedic Association and John Wiley & Sons Australia, Ltd. FAU - Su, Tiao AU - Su T AD - Center for Joint Surgery, Army Medical University, Chongqing, China. FAU - Li, Jing AU - Li J AD - Radiology Department, Southwest Hospital, Army Medical University, Chongqing, China. FAU - Yang, Liu AU - Yang L AD - Center for Joint Surgery, Army Medical University, Chongqing, China. FAU - Chen, Guang-Xing AU - Chen GX AD - Center for Joint Surgery, Army Medical University, Chongqing, China. LA - eng GR - 2020MSXM054/Joint Project of Chongqing Science and Technology Commission/ GR - SWH2016JSTSYB-54/New Clinical Technology Program of the First Affiliated Hospital of Army Medical University/ GR - CX2019JS202/New Technology Cultivation Project of Military Medicine/ GR - SWH2019BJLC-01/Young Talent Training Program/ PT - Journal Article PL - Australia TA - Orthop Surg JT - Orthopaedic surgery JID - 101501666 SB - IM MH - Acetabulum/*surgery MH - Adult MH - Arthroscopy/*methods MH - Cartilage, Articular/*surgery MH - Female MH - Follow-Up Studies MH - *Fractures, Stress MH - Hip Injuries/*surgery MH - Humans MH - Male MH - Middle Aged MH - Pain Measurement MH - Patient Reported Outcome Measures MH - Retrospective Studies PMC - PMC8523766 OTO - NOTNLM OT - 3D DESS OT - Hip arthroscopy OT - Irreparable labral lesion OT - Marrow stimulation OT - Microfracture EDAT- 2021/10/20 06:00 MHDA- 2021/11/23 06:00 PMCR- 2021/10/18 CRDT- 2021/10/19 06:44 PHST- 2021/05/26 00:00 [revised] PHST- 2021/01/15 00:00 [received] PHST- 2021/06/22 00:00 [accepted] PHST- 2021/10/19 06:44 [entrez] PHST- 2021/10/20 06:00 [pubmed] PHST- 2021/11/23 06:00 [medline] PHST- 2021/10/18 00:00 [pmc-release] AID - OS13131 [pii] AID - 10.1111/os.13131 [doi] PST - ppublish SO - Orthop Surg. 2021 Aug;13(6):1853-1862. doi: 10.1111/os.13131.