{"title":"Spinopelvic fixation surgery in relation to the femoroacetabular impingement syndrome under the ultrasound.","authors":"Takahiro Kozaki, Takuhei Kozaki, Yuyu Ishimoto, Hiroshi Iwasaki, Hiroshi Hashizume, Shunji Tsutsui, Masanari Takami, Keiji Nagata, Masatoshi Teraguchi, Daisuke Nishiyama, Daisuke Fukui, Manabu Yamanaka, Tsuyoshi Deguchi, Ryuichiro Nakanishi, Ryo Miyake, Yuta Yamamoto, Hiroshi Yamada","doi":"10.1007/s00586-025-09055-w","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>Spinopelvic fixation surgery is widely used for adult spinal deformity, but its impact on hip joint pathology remains unclear. This study investigates its association with femoroacetabular impingement syndrome (FAIS) using ultrasonography.</p><p><strong>Methods: </strong>This retrospective study included 80 patients (160 hips) who underwent spinal fusion for adult spinal deformity. Patients were categorized based on sacroiliac joint fixation into fixation (group F) and non-fixation (group N). Ultrasonography was performed to assess hip morphology, including labral degeneration, cam lesions, and acetabular osteophytes. The Kellgren-Lawrence (KL) grade, and alpha angle were measured on standing radiographs. The anterior impingement test was conducted to evaluate clinical symptoms, and prevalence was statistically compared.</p><p><strong>Results: </strong>We analyzed 151 hips (26 males, 125 females) with a mean follow-up of 52.7 ± 39.6 months. After excluding 27 hips with advanced hip osteoarthritis (KL grade ≥ 2), labral degeneration (69.5% vs. 37.9%, p = 0.0076) and cam lesions (30.5% vs. 6.9%, p = 0.01) were significantly more prevalent in group F than group N. The mean alpha angle did not significantly differ between two groups at the time of surgery, but significantly greater in group F compared to group N (48.7 ± 3.9° vs. 46.7 ± 4.7°, p = 0.01) at final follow-up.</p><p><strong>Conclusion: </strong>Spinopelvic fixation may contribute to FAIS-related hip abnormalities by increasing mechanical stress. Ultrasonography may aid in early detection of hip joint changes after adult spinal deformity surgery.</p>","PeriodicalId":12323,"journal":{"name":"European Spine Journal","volume":" ","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Spine Journal","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s00586-025-09055-w","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: Spinopelvic fixation surgery is widely used for adult spinal deformity, but its impact on hip joint pathology remains unclear. This study investigates its association with femoroacetabular impingement syndrome (FAIS) using ultrasonography.
Methods: This retrospective study included 80 patients (160 hips) who underwent spinal fusion for adult spinal deformity. Patients were categorized based on sacroiliac joint fixation into fixation (group F) and non-fixation (group N). Ultrasonography was performed to assess hip morphology, including labral degeneration, cam lesions, and acetabular osteophytes. The Kellgren-Lawrence (KL) grade, and alpha angle were measured on standing radiographs. The anterior impingement test was conducted to evaluate clinical symptoms, and prevalence was statistically compared.
Results: We analyzed 151 hips (26 males, 125 females) with a mean follow-up of 52.7 ± 39.6 months. After excluding 27 hips with advanced hip osteoarthritis (KL grade ≥ 2), labral degeneration (69.5% vs. 37.9%, p = 0.0076) and cam lesions (30.5% vs. 6.9%, p = 0.01) were significantly more prevalent in group F than group N. The mean alpha angle did not significantly differ between two groups at the time of surgery, but significantly greater in group F compared to group N (48.7 ± 3.9° vs. 46.7 ± 4.7°, p = 0.01) at final follow-up.
Conclusion: Spinopelvic fixation may contribute to FAIS-related hip abnormalities by increasing mechanical stress. Ultrasonography may aid in early detection of hip joint changes after adult spinal deformity surgery.
目的：脊柱骨盆固定手术被广泛应用于成人脊柱畸形，但其对髋关节病理的影响尚不清楚。本研究利用超声检查探讨其与股髋臼撞击综合征（FAIS）的关系。方法：本回顾性研究包括80例（160髋）接受脊柱融合术治疗成人脊柱畸形的患者。根据骶髂关节固定情况将患者分为固定组（F组）和非固定组（N组）。超声检查评估髋关节形态，包括唇变性、凸轮病变和髋臼骨赘。在站立x线片上测量Kellgren-Lawrence （KL）分级和α角。采用前撞击试验评价临床症状，并对其患病率进行统计学比较。结果：我们分析了151例髋关节（男性26例，女性125例），平均随访时间为52.7±39.6个月。在排除27例晚期髋关节骨性关节炎（KL分级≥2）后，F组的唇部退变（69.5% vs. 37.9%, p = 0.0076）和cam病变（30.5% vs. 6.9%, p = 0.01）明显高于N组。手术时两组的平均α角无显著差异，但最终随访时F组的α角明显高于N组（48.7±3.9°vs. 46.7±4.7°，p = 0.01）。结论：脊柱骨盆固定可能通过增加机械应力导致fais相关的髋关节异常。超声检查可以帮助早期发现成人脊柱畸形手术后髋关节的变化。
期刊介绍：
"European Spine Journal" is a publication founded in response to the increasing trend toward specialization in spinal surgery and spinal pathology in general. The Journal is devoted to all spine related disciplines, including functional and surgical anatomy of the spine, biomechanics and pathophysiology, diagnostic procedures, and neurology, surgery and outcomes. The aim of "European Spine Journal" is to support the further development of highly innovative spine treatments including but not restricted to surgery and to provide an integrated and balanced view of diagnostic, research and treatment procedures as well as outcomes that will enhance effective collaboration among specialists worldwide. The “European Spine Journal” also participates in education by means of videos, interactive meetings and the endorsement of educative efforts.
Official publication of EUROSPINE, The Spine Society of Europe
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