中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (6): 833-838.doi: 10.3969/j.issn.2095-4344.2447

• 人工假体 artificial prosthesis • 上一篇    下一篇

髌股关节骨性关节炎严重程度不影响保留髌骨全膝关节置换患者的预后

徐长波,张  翼,殷  力   

  1. 郑州大学第一附属医院骨外科,河南省郑州市  450052
  • 收稿日期:2019-07-09 修回日期:2019-07-10 接受日期:2019-08-07 出版日期:2020-02-28 发布日期:2020-01-16
  • 通讯作者: 殷力,博士,主任医师,郑州大学第一附属医院骨外科,河南省郑州市 450052
  • 作者简介:徐长波,男,1989年生,河南省杞县人,汉族,郑州大学第一附属医院在读硕士,主要从事关节外科研究。

Severity of patellofemoral osteoarthritis does not affect the prognosis of total knee arthroplasty with patella retention

Xu Changbo, Zhang Yi, Yin Li    

  1. Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • Received:2019-07-09 Revised:2019-07-10 Accepted:2019-08-07 Online:2020-02-28 Published:2020-01-16
  • Contact: Yin Li, MD, Chief physician, Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • About author:Xu Changbo, Master candidate, Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China

摘要:

文题释义:
髌骨适合角:自股骨内外髁最高点分别向股骨髁间沟的最低点画2条直线,这2条线的夹角即为沟角,其角平分线和其顶点与髌骨下级之间的连线形成的夹角为适合角。
髌韧带比值:屈膝30°侧位像上使用Insall-Salvati指数评价髌骨的高度,测量髌腱长度即自髌骨下级至胫骨结节定点上缘,再测量髌骨最长对角线的长度,两者之间比为髌韧带比值。

背景:目前关于全膝关节置换过程中髌骨是否置换尚没有统一标准,对于髌骨置换和不置换的对照研究很多,但是在全膝关节置换不置换髌骨的研究中根据髌股关节炎严重程度分级来比较预后的研究很少。

目的:根据髌股关节炎的严重程度进行分级,比较髌股关节炎的轻重对保留髌骨的全膝关节置换疗效的影响。

方法:回顾性分析2016年1月至2017年1月郑州大学第一附属医院使用强生假体行髌骨保留的全膝关节置换患者192例的临床资料,随访时间大于2年。根据髌股关节炎影像学严重程度Lwano分类系统将患者分为2组,轻度组(0-Ⅰ期)83例,重度组(Ⅱ-Ⅳ期)109例。所有患者对治疗及试验方案均知情同意,且得到医院伦理委员会批准。使用美国膝关节协会评分、功能评分、Feller评分、膝前疼痛评分评估临床预后,使用髌骨倾斜角、适合角、髌骨外移距离、髌韧带比值评估影像学预后。运用t检验,分析患者术前、术后的临床和影像学结果。

结果与结论:①术后1例患者出现持续性膝前疼痛,1例患者伤口渗液,清创后二期愈合,其余均一期愈合;②术前轻度组和重度组患者的功能评分和美国膝关节协会评分差异有显著性意义(P < 0.05),但术后2组功能评分和美国膝关节协会评分差异均无显著性意义(P > 0.05);③影像学上,2组术前髌骨倾斜角、适合角、髌骨外移距离差异有显著性意义(P < 0.05),但术后2组髌骨倾斜角、适合角、髌骨外移距离差异均无显著性意义(P > 0.05);④提示在对保留髌骨的全膝关节置换患者进行至少2年的随访后发现,髌股关节炎的严重程度对患者的临床和影像学预后没有影响;即使在重度髌股关节炎患者中,保留髌骨的全膝关节置换后也能获得良好的预后。

ORCID: 0000-0002-2784-1542(徐长波)

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

关键词: 全膝关节置换, 髌骨保留, 髌股关节炎, 软骨, 疼痛, 预后

Abstract:

BACKGROUND: There is no uniform standard on whether the patella is replaced in total knee arthroplasty. There are many control studies on patella replacement versus non-replacement, but few studies compare the prognosis of non-replacement patella according to the severity grade of patellofemoral arthritis.

OBJECTIVE: To compare the effects of patellofemoral arthritis on prognosis of total knee arthroplasty with patella retention according to the severity of patellofemoral arthritis, 

METHODS: One hundred and ninety-two cases of total knee arthroplasty who received patella retention with Depuy Synthes prosthesis in the First Affiliated Hospital of Zhengzhou University from January 2016 to January 2017 were retrospectively analyzed, and the follow-up time was more than 2 years. According to the Lwano classification system, the imaging severity of patellofemoral arthritis was graded into mild group (0-I period, n=83) and severe group (phase II-IV, n=109). All patients signed the informed consents and the study was approved by the hospital ethics committee. Clinical prognosis was assessed by Knee Society Score, functional score, Feller score and anterior knee pain score. The imaging prognosis was assessed by patella tilt angle, fit angle, patella displacement distance and patellar ligament ratio. The statistical method of t test was used to analyze the clinical and imaging results before and after surgery.

RESULTS AND CONCLUSION: (1) One patient had persistent anterior knee pain, and one patient had wound effusion and secondary healing after debridement. The remaining patients achieved first-stage healing. (2) There were significant differences in the preoperative functional scores and Knee Society Score between mild and severe groups (P < 0.05). No significant differences were found in postoperative functional scores or Knee Society Score between two groups (> 0.05). (3) There was a significant difference between two groups in the patella tilt angle, fit angle and patella displacement distance before surgery (< 0.05). There were no significant differences in above indexes after surgery between two groups (> 0.05). (4) In summary, after at least 2 years of follow-up, the severity of patellofemoral arthritis makes no effect on the clinical and imaging prognosis of patients undergoing total knee arthroplasty with patella retention. Even in patients with severe patellofemoral arthritis, a good prognosis is obtained after total knee arthroplasty with patella retention.

Key words: total knee arthroplasty, patellar retention, patellofemoral osteoarthritis, cartilage, pain, prognosis

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