全髋关节置换术后对侧髋关节状态对骨盆倾斜的影响

IF 1.5 Q3 ORTHOPEDICS Arthroplasty Today Pub Date : 2024-08-05 DOI:10.1016/j.artd.2024.101460
William Oetojo BA , Patrick Lawler BS , James Padley BS , Jim Pierrepont PhD, MEng , Daniel Schmitt MD , Nicholas Brown MD
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引用次数: 0

摘要

背景骨盆倾斜度(PT)每变化一度,前倾角就会变化0.7°,后倾角就会变化0.3°。本研究旨在通过术前和术后的前后位X光片确定对侧髋关节炎对PT变化的影响。方法在2021年9月至2023年1月期间,对一家学术三级转诊中心的两名外科医生完成的193例初次全髋关节置换术进行了复查。PT的计算公式为倾斜度=-(ln[(B/A) × (1/0.483)]) / 0.051。/ 0.051.A值为SI关节底部到闭孔上缘的距离;B值为闭孔的高度。经排除后,对侧髋关节被确定为正常(n = 75)、关节炎(n = 39)(Tönnis 3/4级)、置换(n = 34)或术后拍片时同时接受了双侧全髋关节置换术(n = 5)。术前和术后1-3个月拍摄的PT片之间的差异进行测量。结果对侧髋关节正常的患者 PT 平均变化为-5.2°,绝对平均差值为 7.6°;对侧髋关节炎患者 PT 平均变化为-1.5°,绝对平均差值为 5.0°;对侧髋关节炎患者 PT 平均变化为-1.6°,绝对平均差值为 5.0°。结论健康、关节炎和置换对侧髋关节研究组之间的术后 PT 变化差异显著。从术前到术后倾斜度的变化可能会对髋臼杯的最佳置放位置产生影响。
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Influence of Contralateral Hip Status on Pelvic Tilt After Total Hip Arthroplasty

Background

Every degree of change in pelvic tilt (PT) leads to a 0.7° change in anteversion and a 0.3° change in inclination. This study aimed to determine the significance of contralateral hip arthritis on changes in PT using preoperative and postoperative anteroposterior radiographs.

Methods

There were 193 primary total hip arthroplasties done by 2 surgeons at a single academic tertiary referral center reviewed between September 2021 and January 2023. PT was calculated as Tilt = −(ln[(B/A) × (1/0.483)]) / 0.051. Value A is the distance from the base of the SI joint to the superior margin of the obturator foramen; value B is the height of the obturator foramen. After exclusions, contralateral hips were identified as being normal (n = 75), arthritic (n = 39) (Tönnis grade 3/4), replaced (n = 34), or having undergone simultaneous bilateral total hip arthroplasty (n = 5) on postoperative films. Difference in PT was measured between preoperative and postoperative films taken 1-3 months after surgery. Analyses for statistical significance were calculated using t-tests and one-way analysis of variance.

Results

Average change in PT in patients with normal contralateral hips was −5.2° with an absolute mean difference of 7.6°, −1.5° for arthritic contralateral hips with an absolute mean difference of 5.0°, −1.6° for replaced contralateral hips with a mean absolute difference of 4.3°, and 2.2° for bilateral hips with a mean absolute difference of 2.6° (P < .01).

Conclusions

Differences in postoperative PT changes between healthy, arthritic, and replaced contralateral hip study groups were significant. Changes in preoperative to postoperative tilt may have implications for optimal cup placement.

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来源期刊
Arthroplasty Today
Arthroplasty Today Medicine-Surgery
CiteScore
2.90
自引率
0.00%
发文量
258
审稿时长
40 weeks
期刊介绍: Arthroplasty Today is a companion journal to the Journal of Arthroplasty. The journal Arthroplasty Today brings together the clinical and scientific foundations for joint replacement of the hip and knee in an open-access, online format. Arthroplasty Today solicits manuscripts of the highest quality from all areas of scientific endeavor that relate to joint replacement or the treatment of its complications, including those dealing with patient outcomes, economic and policy issues, prosthetic design, biomechanics, biomaterials, and biologic response to arthroplasty. The journal focuses on case reports. It is the purpose of Arthroplasty Today to present material to practicing orthopaedic surgeons that will keep them abreast of developments in the field, prove useful in the care of patients, and aid in understanding the scientific foundation of this subspecialty area of joint replacement. The international members of the Editorial Board provide a worldwide perspective for the journal''s area of interest. Their participation ensures that each issue of Arthroplasty Today provides the reader with timely, peer-reviewed articles of the highest quality.
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