Relationship between the location of the popliteal artery and the tibial osteotomy plane in patients with medial and lateral unicompartmental knee arthroplasty: A retrospective analysis of preoperative magnetic resonance imaging and intraoperative findings.

IF 1.8 Q2 ORTHOPEDICS
SICOT-J Pub Date : 2025-01-01 Epub Date: 2025-01-13 DOI:10.1051/sicotj/2024058
Tatsuya Kubo, Tsuneari Takahashi, Yuya Kimura, Takashi Ajiki, Eri Yasuda, Katsushi Takeshita
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Abstract

Purpose: To clarify the location of the popliteal artery (PA) is relative to the tibial osteotomy plane in patients with medial and lateral unicompartmental knee osteoarthritis (KOA) undergoing UKA.

Methods: Preoperative MRI and postoperative radiographs obtained from 50 patients with unicompartmental KOA who underwent fixed-bearing UKA were analyzed. The amount of tibial resection was determined from the surgical records, and a line was drawn parallel to the tibial posterior tilt angle on the sagittal MR image to create a virtual tibial cut line. The tibial resection width measured from the anteroposterior image of the postoperative radiograph was projected onto the transverse plane containing the intersection between the virtual tibial cut line and the posterior tibial cortex, after which a line was drawn parallel to the medial or lateral intercondylar ridge. We then determined whether the PA was within an extension of the osteotomy area. The shortest distance (Distance 1) between the posterior tibial cortex and the PA within the osteotomy area was measured. In addition, the shortest distance between the line extending the osteotomy posteriorly and the PA was measured (Distance 2).

Results: The medial UKA (group M) and lateral UKA (group L) group comprised 41 and 9 cases. The percentage of PA located behind the osteotomy plane was significantly higher in group L than in group M [6/9 knees (66.7%) vs. 2/41 knees (4.9%); P < 0.001]. The distance 1 was 12.6 (4.3) mm in group M and 7.9 (3.7) mm in group L (P = 0.004). The distance2 was 11.1 (4.9) mm in group M and 2.6 (3.5) mm in group L (P < 0.001).

Conclusion: During lateral UKA, the PA was often located behind the tibial osteotomy plane and close to the posterior tibial cortex. Nearly 5% of medial UKAs, the artery was located behind the osteotomy plane.

Level of evidence: Retrospective comparative LEVEL III study.

内侧和外侧单室膝关节置换术患者腘动脉位置与胫骨截骨平面的关系:术前磁共振成像和术中表现的回顾性分析。
目的:明确内侧和外侧单室膝骨关节炎(KOA)行UKA患者腘动脉(PA)相对于胫骨截骨平面的位置。方法:对50例单室KOA患者行固定轴承UKA术前MRI和术后x线片进行分析。根据手术记录确定胫骨切除的量,并在矢状面MR图像上画一条平行于胫骨后倾斜角度的线,以创建虚拟胫骨切割线。从术后x线片正位图像测量的胫骨切除宽度投影到包含虚拟胫骨切线与胫骨后皮质相交的横切面上,然后画一条平行于内侧或外侧髁间脊的线。然后我们确定PA是否在截骨区域的延伸范围内。测量截骨区域内胫骨后皮质与胫前皮质之间的最短距离(距离1)。测量截骨线后向延伸至PA的最短距离(距离2)。结果:内侧UKA组(M组)41例,外侧UKA组(L组)9例。L组PA位于截骨平面后的比例明显高于M组[6/9膝(66.7%)比2/41膝(4.9%);结论:侧位UKA时,PA常位于胫骨截骨平面后方,靠近胫骨后皮质。近5%的内侧UKAs,动脉位于截骨平面后方。证据级别:回顾性比较III级研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
SICOT-J
SICOT-J ORTHOPEDICS-
CiteScore
3.20
自引率
12.50%
发文量
44
审稿时长
14 weeks
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