伴有内侧半月板根修复和挤压修复(集中技术)

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2023-08-10 eCollection Date: 2023-07-01 DOI:10.2106/JBJS.ST.22.00008
Silvampatti Ramaswamy Sundararajan, Rajagopalakrishnan Ramakanth, Terence D'Souza, Shanmuganathan Rajasekaran
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There are various techniques to correct meniscal extrusion, including a dual-tunnel suture pull-out technique<sup>2</sup> (to address extrusion and root tear<sup>2</sup>), a knotless suture anchor<sup>4,6</sup> technique, and an all-inside suture anchor repair<sup>7</sup>. The indications for extrusion repair are not consistently reported in the literature, and the procedure is not always easy to perform. Currently, there is no consensus regarding the ideal technique. In the present article, we describe the steps for successful combined medial meniscal root repair with extrusion repair and centralization.</p><p><strong>Description: </strong>Place the patient in the supine position with the knee supported in 90° of flexion and the feet at the edge of the operating table with foot-positioner support. First, meniscal root repair is performed with use of the suture pull-out technique, utilizing a cinch suture configuration to hold the root in place, and the suture tapes are fixed over the anterior cortex of the tibia with a suture button. Next, the meniscal body is arthroscopically assessed for residual extrusion from the medial tibial rim. Extrusion repair is indicated in cases with >3 mm of extrusion<sup>7-9</sup>, as measured on magnetic resonance imaging. In our technique, any extrusion beyond the medial tibial rim is reduced and secured with use of a double-loaded 2.3-mm all-suture type of anchor.</p><p><strong>Alternatives: </strong>Alternatives include surgical procedures in which the root repair is performed with use of suture-anchor fixation<sup>10,11</sup> and the extrusion repair is performed with use of the transtibial suture pull-out method.</p><p><strong>Rationale: </strong>Root repair performed with the most common fixation techniques does not always reduce meniscal extrusion or restore meniscal function<sup>12,13</sup>. Consequently, several augmentation techniques have been reported to address meniscal extrusion<sup>3,14</sup>, including those that use arthroscopy to centralize the midbody of the meniscus over the rim of the tibial plateau. The rationale for this combined procedure is to restore the hoop-stress distribution and maintain meniscal function by repairing the extrusion of the meniscus. Addressing all intra-articular pathologies in a single stage is a challenging situation, and the sequence of the repair is important to achieve optimal postoperative results.</p><p><strong>Expected outcomes: </strong>Several surgical techniques have been described for the operative treatment of extrusion repair with use of centralization sutures<sup>2,3,5,6</sup>, and each has its own distinctive pearls and pitfalls for each. To combine root repair and extrusion repair presents a challenge for surgeons. From our clinical experience, a methodical approach to understanding the pathoanatomy and sequential execution of repair techniques would yield desired results. Extrusion correction through the use of a peripheral suture anchor over the medial rim of the tibia and knot tying are relatively easier to perform than some other published extrusion-repair techniques. Although no consensus has been achieved yet regarding the best technique, recent literature has suggested that the use of centralization sutures is effective to restore the native biomechanical properties of the medial meniscus<sup>5</sup>.Mochizuki et al. assessed the clinical and radiological outcomes of combined medial meniscal root repair and centralization in 26 patients with a minimum follow-up of 2 years. Both Lysholm scores and Knee injury and Osteoarthritis Outcome Scores improved significantly after surgery, with a significant reduction in extrusion distance from preoperatively to 2 years postoperatively<sup>20</sup>. Koga et al<sup>21</sup> assessed the 2-year outcomes of lateral arthroscopic meniscal centralization, finding significantly reduced meniscal extrusion at both 3 months and 1 year postoperatively. Biomechanical studies have demonstrated that centralization can improve meniscal mechanics and potentially reduce the risk of osteoarthritis. The centralization suture technique for extrusion repair has the theoretical advantage of restoring meniscal function following meniscal root repair; however, there are also concerns regarding over-constraint of the meniscus. We believe that the medial meniscus, being less mobile than the lateral meniscus, can withstand the constraint created by the use of centralization. Meniscal centralization is a technically demanding surgical procedure, but with a systematic approach and meticulous technique, we have observed good short-term outcome in our patients.</p><p><strong>Important tips: </strong>A tight medial compartment is one of the most common problems encountered during a medial meniscal root repair. \"Pie-crusting\" of the superficial medial collateral ligament at the tibial insertion aids in improving the space, thereby reducing chondral damage during the root repair.It is challenging to achieve the correct inclination of insertion when inserting the suture anchor through a mid-medial portal. This limitation can be mitigated by utilizing a 16G or 18G needle before making the portal, as the needle direction, trajectory, and extent of accessibility within the joint will aid in proper portal placement and anchor insertion.Suture management is another technical challenge. Suture tape is first cinched to the root of the meniscus and then shuttled into the transtibial tunnel in order to discern the reducibility of the meniscus and the extent of possible extrusion correction. Then, extrusion repair is performed. This sequence allows the surgeon to avoid mixing of root-repair sutures and extrusion-repair sutures. Following insertion of the all-suture anchor, each suture limb is brought out through the anteromedial portal, passed through the nitinol loop from the lasso, and shuttled back through the mid-medial portal. Knot tying is performed through the mid-medial portal.</p><p><strong>Acronyms and abbreviations: </strong>ACL = anterior cruciate ligamentPCL = posterior cruciate ligamentICRS grading = International Cartilage Research Society system for classification of cartilage lesionsKL grade = Kellgren-Lawrence system for classification of osteoarthritisMRI = magnetic resonance imagingMC = medial femoral condyleMPTA = medial proximal tibial angleLC = lateral femoral condyleHTO = high tibial osteotomyMCL = medial collateral ligamentAM = anteromedialKOOS = Knee injury and Osteoarthritis Outcome ScoreMME = medial meniscus extrusion.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10810590/pdf/","citationCount":"0","resultStr":"{\"title\":\"Concomitant Medial Meniscal Root Repair with Extrusion Repair (Centralization Technique).\",\"authors\":\"Silvampatti Ramaswamy Sundararajan, Rajagopalakrishnan Ramakanth, Terence D'Souza, Shanmuganathan Rajasekaran\",\"doi\":\"10.2106/JBJS.ST.22.00008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Meniscal extrusion is a phenomenon in which a degenerative posterior horn tear, radial tear, or root tear results in displacement of the body of the meniscus medial to the tibial rim. 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In our technique, any extrusion beyond the medial tibial rim is reduced and secured with use of a double-loaded 2.3-mm all-suture type of anchor.</p><p><strong>Alternatives: </strong>Alternatives include surgical procedures in which the root repair is performed with use of suture-anchor fixation<sup>10,11</sup> and the extrusion repair is performed with use of the transtibial suture pull-out method.</p><p><strong>Rationale: </strong>Root repair performed with the most common fixation techniques does not always reduce meniscal extrusion or restore meniscal function<sup>12,13</sup>. Consequently, several augmentation techniques have been reported to address meniscal extrusion<sup>3,14</sup>, including those that use arthroscopy to centralize the midbody of the meniscus over the rim of the tibial plateau. The rationale for this combined procedure is to restore the hoop-stress distribution and maintain meniscal function by repairing the extrusion of the meniscus. 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引用次数: 0

摘要

半月板集中修补术是一项技术要求很高的手术,但通过系统的方法和细致的技术,我们观察到患者的短期疗效很好:重要提示:内侧间隙过紧是内侧半月板根部修复术中最常见的问题之一。在胫骨插入处对浅内侧副韧带进行 "饼状 "处理有助于改善空间,从而减少半月板根部修复过程中对软骨的损伤。这一限制可以通过在做入口前使用 16G 或 18G 的针来缓解,因为针的方向、轨迹和关节内的可触及范围将有助于正确的入口放置和锚的插入。缝合管理是另一项技术挑战。首先将缝合带绑在半月板根部,然后穿梭到经胫骨隧道中,以确定半月板的可收回性和可能的挤压矫正范围。然后进行挤压修复。这种顺序可使外科医生避免将根部修复缝合线和挤压修复缝合线混用。插入全缝合锚后,通过前内侧入口将每个缝合肢带出,穿过套索上的镍钛诺环,然后通过中内侧入口穿梭回去。通过中内侧入口进行打结:ACL=前交叉韧带PCL=后交叉韧带ICRS分级=国际软骨研究学会软骨病变分级系统KL分级=凯尔格伦-劳伦斯骨关节病变分级系统。劳伦斯骨关节炎分级系统MRI=磁共振成像MC=股骨内侧髁MPTA=胫骨内侧近端角LC=股骨外侧髁HTO=胫骨高位截骨术MCL=内侧副韧带AM=前内侧KOOS=膝关节损伤和骨关节炎结果评分MME=内侧半月板挤出。
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Concomitant Medial Meniscal Root Repair with Extrusion Repair (Centralization Technique).

Background: Meniscal extrusion is a phenomenon in which a degenerative posterior horn tear, radial tear, or root tear results in displacement of the body of the meniscus medial to the tibial rim. The paramount function of the meniscus is to provide load distribution across the knee joint. Meniscal extrusion will prevent the meniscus from properly fulfilling this function and eventually leads to progression of osteoarthritis1. Thus, root repair accompanied by arthroscopic meniscal extrusion repair (by a centralization technique) has been suggested for restoration of meniscal function2-5. There are various techniques to correct meniscal extrusion, including a dual-tunnel suture pull-out technique2 (to address extrusion and root tear2), a knotless suture anchor4,6 technique, and an all-inside suture anchor repair7. The indications for extrusion repair are not consistently reported in the literature, and the procedure is not always easy to perform. Currently, there is no consensus regarding the ideal technique. In the present article, we describe the steps for successful combined medial meniscal root repair with extrusion repair and centralization.

Description: Place the patient in the supine position with the knee supported in 90° of flexion and the feet at the edge of the operating table with foot-positioner support. First, meniscal root repair is performed with use of the suture pull-out technique, utilizing a cinch suture configuration to hold the root in place, and the suture tapes are fixed over the anterior cortex of the tibia with a suture button. Next, the meniscal body is arthroscopically assessed for residual extrusion from the medial tibial rim. Extrusion repair is indicated in cases with >3 mm of extrusion7-9, as measured on magnetic resonance imaging. In our technique, any extrusion beyond the medial tibial rim is reduced and secured with use of a double-loaded 2.3-mm all-suture type of anchor.

Alternatives: Alternatives include surgical procedures in which the root repair is performed with use of suture-anchor fixation10,11 and the extrusion repair is performed with use of the transtibial suture pull-out method.

Rationale: Root repair performed with the most common fixation techniques does not always reduce meniscal extrusion or restore meniscal function12,13. Consequently, several augmentation techniques have been reported to address meniscal extrusion3,14, including those that use arthroscopy to centralize the midbody of the meniscus over the rim of the tibial plateau. The rationale for this combined procedure is to restore the hoop-stress distribution and maintain meniscal function by repairing the extrusion of the meniscus. Addressing all intra-articular pathologies in a single stage is a challenging situation, and the sequence of the repair is important to achieve optimal postoperative results.

Expected outcomes: Several surgical techniques have been described for the operative treatment of extrusion repair with use of centralization sutures2,3,5,6, and each has its own distinctive pearls and pitfalls for each. To combine root repair and extrusion repair presents a challenge for surgeons. From our clinical experience, a methodical approach to understanding the pathoanatomy and sequential execution of repair techniques would yield desired results. Extrusion correction through the use of a peripheral suture anchor over the medial rim of the tibia and knot tying are relatively easier to perform than some other published extrusion-repair techniques. Although no consensus has been achieved yet regarding the best technique, recent literature has suggested that the use of centralization sutures is effective to restore the native biomechanical properties of the medial meniscus5.Mochizuki et al. assessed the clinical and radiological outcomes of combined medial meniscal root repair and centralization in 26 patients with a minimum follow-up of 2 years. Both Lysholm scores and Knee injury and Osteoarthritis Outcome Scores improved significantly after surgery, with a significant reduction in extrusion distance from preoperatively to 2 years postoperatively20. Koga et al21 assessed the 2-year outcomes of lateral arthroscopic meniscal centralization, finding significantly reduced meniscal extrusion at both 3 months and 1 year postoperatively. Biomechanical studies have demonstrated that centralization can improve meniscal mechanics and potentially reduce the risk of osteoarthritis. The centralization suture technique for extrusion repair has the theoretical advantage of restoring meniscal function following meniscal root repair; however, there are also concerns regarding over-constraint of the meniscus. We believe that the medial meniscus, being less mobile than the lateral meniscus, can withstand the constraint created by the use of centralization. Meniscal centralization is a technically demanding surgical procedure, but with a systematic approach and meticulous technique, we have observed good short-term outcome in our patients.

Important tips: A tight medial compartment is one of the most common problems encountered during a medial meniscal root repair. "Pie-crusting" of the superficial medial collateral ligament at the tibial insertion aids in improving the space, thereby reducing chondral damage during the root repair.It is challenging to achieve the correct inclination of insertion when inserting the suture anchor through a mid-medial portal. This limitation can be mitigated by utilizing a 16G or 18G needle before making the portal, as the needle direction, trajectory, and extent of accessibility within the joint will aid in proper portal placement and anchor insertion.Suture management is another technical challenge. Suture tape is first cinched to the root of the meniscus and then shuttled into the transtibial tunnel in order to discern the reducibility of the meniscus and the extent of possible extrusion correction. Then, extrusion repair is performed. This sequence allows the surgeon to avoid mixing of root-repair sutures and extrusion-repair sutures. Following insertion of the all-suture anchor, each suture limb is brought out through the anteromedial portal, passed through the nitinol loop from the lasso, and shuttled back through the mid-medial portal. Knot tying is performed through the mid-medial portal.

Acronyms and abbreviations: ACL = anterior cruciate ligamentPCL = posterior cruciate ligamentICRS grading = International Cartilage Research Society system for classification of cartilage lesionsKL grade = Kellgren-Lawrence system for classification of osteoarthritisMRI = magnetic resonance imagingMC = medial femoral condyleMPTA = medial proximal tibial angleLC = lateral femoral condyleHTO = high tibial osteotomyMCL = medial collateral ligamentAM = anteromedialKOOS = Knee injury and Osteoarthritis Outcome ScoreMME = medial meniscus extrusion.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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