Closing the tendon defect does not affect tendon length and patellar height after bone-patellar tendon-bone ACL reconstruction. A retrospective study using radiographs

IF 1.6 4区医学 Q3 ORTHOPEDICS

Knee Pub Date : 2025-04-25 DOI:10.1016/j.knee.2025.04.012

Tom J. Kuijs , Tim Truyers , Bas van Dun , Jasper Most , Martijn G.M. Schotanus , Edwin J.P. Jansen

{"title":"Closing the tendon defect does not affect tendon length and patellar height after bone-patellar tendon-bone ACL reconstruction. A retrospective study using radiographs","authors":"Tom J. Kuijs , Tim Truyers , Bas van Dun , Jasper Most , Martijn G.M. Schotanus , Edwin J.P. Jansen","doi":"10.1016/j.knee.2025.04.012","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>The aim of this study was to compare radiological changes in patellar height (PH) and patellar tendon length (PTL) after closure and non-closure of the patellar donor site defect during anterior cruciate ligament reconstruction (ACLR) using a bone-patellar tendon-bone (BPTB) autograft.</div></div><div><h3>Methods</h3><div>In this retrospective study a total of 63 patients was included. All patients underwent an arthroscopically assisted ACLR using the mid-third BPTB autograft. In 30 patients the tendon donor site defect was closed. In 33 patients the tendon donor site defect was left open. The paratenon was approximated in all patients. Lateral radiographs were taken preoperatively and at 3 months after ACLR. PH was determined using the Insall-Salvati, Caton-Deschamps and Blackburne-Peel methods. PTL was measured by determining the distance between the inferior pole of the patella and the superior aspect of the tibial tubercle.</div></div><div><h3>Results</h3><div>Overall, no change in patellar height were observed 3 months after ACLR for the Insal-Salvati (<em>p</em> = 0.54), Caton-Deschamps (<em>p</em> = 0.75) and Blackburne-Peel methods (<em>p</em> = 0.83). Also, the change in pre- and postoperative patellar height did not differ between the closure- and non-closure-group for the Insall-Salvati (<em>p</em> = 0.77), the Caton-Deschamps (<em>p</em> = 0.89) and the Blackburne-Peel (<em>p</em> = 0.70) methods.</div><div>Overall, no significant change in PTL was observed 3 months after ACLR (<em>p</em> = 0.78). Between both groups, no significant difference was observed for PTL over time (<em>p</em> = 0.98).</div></div><div><h3>Conclusion</h3><div>Patellar height and patellar tendon length did not significantly change after anterior cruciate reconstruction using bone-patellar tendon-bone autografts regardless of patellar donor site closure.</div><div><strong>Level of evidence:</strong> IIIb.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"55 ","pages":"Pages 133-141"},"PeriodicalIF":1.6000,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Knee","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0968016025000833","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ORTHOPEDICS","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose

The aim of this study was to compare radiological changes in patellar height (PH) and patellar tendon length (PTL) after closure and non-closure of the patellar donor site defect during anterior cruciate ligament reconstruction (ACLR) using a bone-patellar tendon-bone (BPTB) autograft.

Methods

In this retrospective study a total of 63 patients was included. All patients underwent an arthroscopically assisted ACLR using the mid-third BPTB autograft. In 30 patients the tendon donor site defect was closed. In 33 patients the tendon donor site defect was left open. The paratenon was approximated in all patients. Lateral radiographs were taken preoperatively and at 3 months after ACLR. PH was determined using the Insall-Salvati, Caton-Deschamps and Blackburne-Peel methods. PTL was measured by determining the distance between the inferior pole of the patella and the superior aspect of the tibial tubercle.

Results

Overall, no change in patellar height were observed 3 months after ACLR for the Insal-Salvati (p = 0.54), Caton-Deschamps (p = 0.75) and Blackburne-Peel methods (p = 0.83). Also, the change in pre- and postoperative patellar height did not differ between the closure- and non-closure-group for the Insall-Salvati (p = 0.77), the Caton-Deschamps (p = 0.89) and the Blackburne-Peel (p = 0.70) methods.

Overall, no significant change in PTL was observed 3 months after ACLR (p = 0.78). Between both groups, no significant difference was observed for PTL over time (p = 0.98).

Conclusion

Patellar height and patellar tendon length did not significantly change after anterior cruciate reconstruction using bone-patellar tendon-bone autografts regardless of patellar donor site closure.

Level of evidence: IIIb.

查看原文本刊更多论文

骨-髌骨-骨前交叉韧带重建后，关闭肌腱缺损不影响肌腱长度和髌骨高度。利用x线片进行回顾性研究

本研究的目的是比较骨-髌腱-骨（BPTB）自体移植前交叉韧带重建（ACLR）中髌骨供区缺损闭合和未闭合后髌骨高度（PH）和髌腱长度（PTL）的影像学变化。方法本研究共纳入63例患者。所有患者都接受了关节镜辅助ACLR，使用了三分之一BPTB自体移植物。30例患者肌腱供区缺损被封闭。33例患者肌腱供区缺损未愈合。所有患者的副张力均接近。术前和ACLR术后3个月摄侧位片。PH采用Insall-Salvati、Caton-Deschamps和blackburn - peel法测定。PTL是通过测定髌骨下极和胫骨结节上侧面之间的距离来测量的。结果Insal-Salvati法（p = 0.54）、Caton-Deschamps法（p = 0.75）和blackburn - peel法（p = 0.83） ACLR术后3个月髌骨高度无明显变化。此外，在Insall-Salvati （p = 0.77）、Caton-Deschamps （p = 0.89）和blackburn - peel （p = 0.70）方法中，闭合组和非闭合组髌骨高度的变化没有差异。总体而言，ACLR术后3个月PTL无显著变化（p = 0.78）。两组间PTL随时间变化无显著差异（p = 0.98）。结论自体骨-髌腱-骨移植重建前十字韧带后，不论髌骨供区闭合与否，髌骨高度和髌腱长度均无明显变化。证据等级：IIIb。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Knee 医学-外科

CiteScore

3.80

自引率

5.30%

发文量

171

审稿时长

6 months

期刊介绍： The Knee is an international journal publishing studies on the clinical treatment and fundamental biomechanical characteristics of this joint. The aim of the journal is to provide a vehicle relevant to surgeons, biomedical engineers, imaging specialists, materials scientists, rehabilitation personnel and all those with an interest in the knee. The topics covered include, but are not limited to: • Anatomy, physiology, morphology and biochemistry; • Biomechanical studies; • Advances in the development of prosthetic, orthotic and augmentation devices; • Imaging and diagnostic techniques; • Pathology; • Trauma; • Surgery; • Rehabilitation.