{"title":"MCL pie crusting for concomitant medial meniscal surgery does not appear to adversely influence primary ACL reconstruction functional outcomes","authors":"Ayman Gabr , James Robinson","doi":"10.1016/j.jisako.2024.100359","DOIUrl":"10.1016/j.jisako.2024.100359","url":null,"abstract":"<div><h3>Objectives</h3><div>Medial collateral ligament “pie-crusting” (MCLPC), selective release of the superficial MCL, has been shown to improve the arthroscopic access to the posterior horn of the medial meniscus without adversely affecting the outcomes of isolated meniscal surgery. However, whether MCL PC, to address concomitant meniscal lesions during anterior cruciate ligament reconstruction (ACLR) surgery, adversely affects ACLR outcomes is unknown. The aim of this study was to assess whether patients who had undergone MCLPC at the time of ACLR had similar post outcomes to patients undergoing isolated ACLR.</div></div><div><h3>Methods</h3><div>55 consecutive patients (33 male and 22 female), with minimum 2-year follow-up, who had undergone MCLPC with concomitant primary ACLR (PC group) were retrospectively matched on the basis of age, sex and follow-up with 55 patients who underwent isolated primary ACLR. Post-operative outcome measures (PROMs) included the Knee injury and Osteoarthritis Outcome Score, the International Knee Documentation Committee score, Tegner activity score, the EuroQol five-dimension health questionnaire and EuroQol visual analogue scale.</div></div><div><h3>Results</h3><div>The two groups’ median postoperative EQ 5D-VAS, EQ 5D-index and Tegner scores were similar. The difference between pre-operative and post-operative KOOS scores was similar for the two group for all subscales except the ADL subscale which was higher in the MCLPC group (24, IQR = 6–32) than in the isolated ACLR group (5, IQR = 0–9.74). The median post op IKDC score was 84 in the MCLPC group and compared with 90 in the isolated ACLR group. However, the difference between pre-operative and post-operative IKDC scores was higher in patients in the MCLPC group (40, IQR = 25–49) than in the isolated ACLR group (32, IQR = 19.6–46.8).</div></div><div><h3>Conclusions</h3><div>MCLPC, performed at the time of ACLR does not appear to adversely affect the functional post-operative outcomes.</div></div><div><h3>Level of evidence</h3><div>IV.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100359"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierre-Henri Vermorel , Alban Stordeur , Sylvain Grange , Antonio Klasan , Rémi Philippot , Thomas Neri
{"title":"Oblique or short incisions reduce the risk of saphenous nerve damage during hamstrings harvesting: A model for mapping nerve pathways at the harvest site","authors":"Pierre-Henri Vermorel , Alban Stordeur , Sylvain Grange , Antonio Klasan , Rémi Philippot , Thomas Neri","doi":"10.1016/j.jisako.2024.100358","DOIUrl":"10.1016/j.jisako.2024.100358","url":null,"abstract":"<div><h3>Introduction</h3><div>Hamstring autografts are frequently used for ligament reconstruction surgery. Between 12% and 84% of patients report hypoesthesia or dysaesthesia secondary to injury of the saphenous nerve or one of its branches after hamstring harvesting. Type of incision (orientation and length) is subject of much regarding limiting the risk of nerve damage. A cadaveric study was performed to determine which type of incision limits the risk of injury to the saphenous nerve or one of its branches, based on an anatomic model for mapping nerve pathways at the harvest site.</div></div><div><h3>Methods</h3><div>An anatomical study was performed on 20 knees from 12 embalmed bodies. Distance between saphenous nerve branches and 4 points of interest along the tibial crest was measured. Based on these measurements, a digital model of the saphenous nerve and its branches was created. A model of three common types of incision (vertical, horizontal and oblique) was overlaid. Each incision was modeled for three lengths (2, 3, and 4 cm). Percentage of collision between nerve course model and incision model was then calculated to determine the risk of nerve damage for each type of incision. Based on the nerve course model, a ‘low-collision-risk’ safe zone was identified.</div></div><div><h3>Results</h3><div>Nerve damage risk after an oblique incision was significantly lower than for a horizontal or vertical incision, for incision lengths of 3 and 4 cm (p < 0.05). For a specific incision orientation, the length of the incision did not affect the risk of nerve damage. A trapezoidal space close to the tibial crest and distal to the anterior tibial tuberosity appears to reduce risk of nerve damage.</div></div><div><h3>Conclusion</h3><div>This cadaveric study suggests that during hamstring harvesting, incisions shorter than 2 cm reduce the risk of saphenous nerve's branches injuries. For incisions longer than 2 cm, using an oblique incision may reduce the risk compared to vertical or horizontal incisions.</div></div><div><h3>Level of evidence</h3><div>Level of evidence not applicable: Laboratory experiments.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100358"},"PeriodicalIF":2.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ian Hollyer , Connor Sholtis , Galvin Loughran , Yazdan Raji , Muzammil Akhtar , Patrick A. Smith , Volker Musahl , Peter C.M. Verdonk , Bertrand Sonnery-Cottet , Alan Getgood , Seth L. Sherman , ACL Study Group
{"title":"Trends in lateral extra-articular augmentation use and surgical technique with anterior cruciate ligament reconstruction from 2016 to 2023, an ACL study group survey","authors":"Ian Hollyer , Connor Sholtis , Galvin Loughran , Yazdan Raji , Muzammil Akhtar , Patrick A. Smith , Volker Musahl , Peter C.M. Verdonk , Bertrand Sonnery-Cottet , Alan Getgood , Seth L. Sherman , ACL Study Group","doi":"10.1016/j.jisako.2024.100356","DOIUrl":"10.1016/j.jisako.2024.100356","url":null,"abstract":"<div><h3>Purpose</h3><div>To survey the ACL study group (ACLSG) members to determine the current practice patterns surrounding the use and methodology of lateral extra-articular procedures (LEAPs), including anterolateral ligament reconstruction (ALLR) or lateral extra-articular tenodesis (LET) during ACL reconstruction (ACLR).</div></div><div><h3>Methods</h3><div>A web-based questionnaire was distributed to members of the ACLSG during the 2016, 2018, 2020, and 2023 biennial meetings. Questions explored the indications and techniques when incorporating LEAPs in ACLR.</div></div><div><h3>Results</h3><div>Analysis of survey responses found that the reported use of LEAPs in both primary and revision ACLR increased between 2016 and 2023 and that surgeons were using lateral augmentation more frequently over time. Surgical techniques were stable across survey years, with most surgeons using iliotibial band (ITB) autograft attached at Gerdy's tubercle, passed under the lateral collateral ligament (LCL), and anchored proximal/posterior to the lateral femoral epicondyle.</div></div><div><h3>Conclusion</h3><div>Survey responses demonstrate that LEAPs are becoming more common among ACL surgeons in the ACL SG, with the modified Lemaire LET being the predominant technique. This aligns with recent clinical studies showing improved outcomes and reduced risk of failure in ACLR with lateral augmentation compared to ACLR alone.</div></div><div><h3>Level of evidence</h3><div>Level V, Expert Opinion.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100356"},"PeriodicalIF":2.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Medial center of rotation and 90-degree lateral laxity improve patient-reported outcomes in posterior cruciate retaining total knee arthroplasty","authors":"Takahiro Tsushima , Eiji Sasaki , Shizuka Sasaki , Kazuki Oishi , Yuka Kimura , Yukiko Sakamoto , Eiichi Tsuda , Yasuyuki Ishibashi","doi":"10.1016/j.jisako.2024.100357","DOIUrl":"10.1016/j.jisako.2024.100357","url":null,"abstract":"<div><h3>Objectives</h3><div>Physiologic knee kinematics is crucial for successful total knee arthroplasty (TKA) but are often not replicated. Using a medial stabilizing technique (MST) minimizes bone resection but results in lateral laxity. This study aimed to investigate the effects of lateral laxity on knee kinematics and symptoms after TKA.</div></div><div><h3>Methods</h3><div>Mobile-bearing cruciate-retaining MST-TKA was performed on 40 knees using a navigation system. In the kinematic analysis, the anteroposterior (AP) translations of the medial femoral condyle (MFC) and lateral femoral condyle (LFC), femoral rotation angles, and medial and lateral component gaps were recorded every 0.1 s. These data were extracted from the software from 0° to 120° flexion in 10° increments. Kinematics was classified as the medial center of rotation (MCR) or non-MCR between 0° to 90° of flexion. Lateral laxity was calculated by subtracting the medial component gap from the lateral component gap. The final follow-up Knee Injury and Osteoarthritis Outcome Scores (KOOS) were evaluated. The relationships between the pre- and post-operative kinematics and between postoperative lateral laxity and kinematics were assessed using Spearman's correlation coefficients. Finally, the correlation between postoperative lateral laxity and KOOS symptoms was evaluated using linear regression analysis.</div></div><div><h3>Results</h3><div>Preoperative kinematics, including AP translation of the MFC and LFC and femoral rotation, correlated with postoperative kinematics (all P < 0.001). Additionally, postoperative lateral laxity correlated with postoperative AP translation of the MFC, LFC, and femoral rotation (all P < 0.001). Furthermore, the receiver operating characteristic analysis indicated a cutoff value of 0.9 mm on postoperative lateral laxity at 90° flexion for postoperative MCR (P < 0.001). Postoperative lateral laxity at 90° flexion was significantly correlated with KOOS symptoms (β = 0.465, P = 0.025).</div></div><div><h3>Conclusion</h3><div>Preoperative kinematics and postoperative lateral laxity correlated with postoperative kinematics after MST-TKA. Postoperative lateral laxity greater than 0.9 mm at 90° flexion was associated with physiological kinematic motion, leading to fewer knee symptoms in the PROMs. The key to successful TKA was considered to be keeping the asymmetric gap balance with physiological lateral laxity, rather than the conventional symmetrical gap balance.</div></div><div><h3>Level of Evidence Level III</h3><div>Retrospective study.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100357"},"PeriodicalIF":2.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Augmented suture pull-out with suture-button(triple fixation) yields less radiological residual laxity than suture pull-out technique-for Arthroscopic reduction and internal fixation of posterior cruciate ligament avulsion fractures.","authors":"Rajagopalakrishnan Ramakanth, Sundararajan Silvampatti Ramasamy, Sameer Muhammed, Terence D Souza, Palaniswamy Arumugam, Shanmuganathan Rajasekaran","doi":"10.1016/j.jisako.2024.100354","DOIUrl":"https://doi.org/10.1016/j.jisako.2024.100354","url":null,"abstract":"<p><strong>Objectives: </strong>Among numerous arthroscopic reduction and internal fixation (ARIF) techniques for displaced posterior cruciate ligament (PCL) avulsions, residual posterior laxity and non-unions are under reported and the optimal technique is still unclear. The objective of our study is to differentiate the outcomes of arthroscopic suture pull-out(SPO) versus augmented suture pull-out(ASPO) using suture button for acute displaced tibial PCL avulsion fractures.</p><p><strong>Methods: </strong>Retrospective study of ARIF for displaced tibial PCL avulsion operated between 2015 to 2021.. Chronologically, initial group of patients had underwent SPO(Group I), while the later underwent ASPO(Group II). Assessment included-functional scores (IKDC(International Knee Documentation Committee),Lysholm and KOOS scores(Knee Injury and Osteoarthritis outcome score)), and radiological assessment (union and posterior tibial displacement (PTD)). Student's unpaired t test and Cohen's term d for Effect size was used to compare the groups. Intraclass-correlation-coefficient for assessing inter-observer-reliability.</p><p><strong>Results: </strong>64 patients-Group I(n=32),Group II(n=32) were compared. |Mean duration of surgery was 48.06 (±9.52) and 54.3 (± 6.97) in group I and II respectively (p=0.004(s)). At mean follow-up of 39.7months(SD-10.6) in Group I and 35.6months(SD-6.6) in Group II, there was a statistically significant improvement in postoperative-IKDC, Lysholm and KOOS scores(p< 0.001). However, there was no significant difference between the two groups with respect to functional outcomes (P >0.05). Effect size(Cohen's-d) was 0.47(medium for IKDC), 0.78(large for Lysholms), 0.05 (small for KOOS), 1.46 (large for PTD). Mean PTD measuring the residual posterior laxity was greater in Group I (7.25 mm)(SD-1.9) than Group II (4.5mm)(SD-2.1) and was statistically significant(P=0.001). There were two non-unions (6.6%) and one popliteal artery injury in Group I.</p><p><strong>Conclusions: </strong>Both ASPO and SPO techniques result in comparable functional outcomes for ARIF of PCL avulsion fractures. However, augmented SPO with a suture button provides triple fixation and additional compression during ARIF of PCL avulsion fractures to mitigate residual posterior laxity on follow-up.</p><p><strong>Level of evidence: </strong>Level III Retrospective cohort study.</p>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":" ","pages":"100354"},"PeriodicalIF":2.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142548098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kevin D. Plancher , Geoffrey E. Braun , Stephanie C. Petterson
{"title":"The outpatient experience in unicompartmental knee arthroplasty: How to perform safely in the ambulatory surgery center","authors":"Kevin D. Plancher , Geoffrey E. Braun , Stephanie C. Petterson","doi":"10.1016/j.jisako.2024.100350","DOIUrl":"10.1016/j.jisako.2024.100350","url":null,"abstract":"<div><div>The number of outpatient unicompartmental knee arthroplasty (UKA) procedures has increased substantially over the last decade. The ambulatory surgery center (ASC) and hospital outpatient department provide a safe, cost-effective alternative with significant cost savings to the healthcare system. Advancements in technology and perioperative management strategies have expanded the number of eligible patients to optimize outcomes with a focus on safety. Therefore, this review will describe the safety, efficacy, economics, and perioperative protocols for performing UKA in an outpatient setting. Patient selection, risk factors, patient education and expectations, anesthesia, pain management strategies, and outcomes will be discussed.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100350"},"PeriodicalIF":2.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roderick J.M. Vossen , Gaby V. ten Noever de Brauw , Tarik Bayoumi , Hendrik A. Zuiderbaan , Andrew D. Pearle
{"title":"Patient satisfaction following unicompartmental knee arthroplasty: Current concepts","authors":"Roderick J.M. Vossen , Gaby V. ten Noever de Brauw , Tarik Bayoumi , Hendrik A. Zuiderbaan , Andrew D. Pearle","doi":"10.1016/j.jisako.2024.100349","DOIUrl":"10.1016/j.jisako.2024.100349","url":null,"abstract":"<div><div>Unicompartmental knee arthroplasty (UKA) has gained progressive popularity in recent decades, currently comprising approximately 10% of knee arthroplasties in the United States. Nonetheless, UKA has not yet solidified its position as the superior treatment for isolated compartment osteoarthritis, as initially reported implant survivorship was subpar, leading to hesitation in its utilization and stricter patient indications compared to total knee arthroplasty. Patient satisfaction following knee arthroplasty has emerged as a critical metric to gauge patient acceptance and contentment with surgical interventions.</div><div>Currently, a variety of UKA types exist, differing in bearing design, fixation techniques such as cementless or cemented fixation, and robotic-assisted systems, each with its own merits and drawbacks. Multiple studies have demonstrated the contributions of these innovations to improve clinical outcomes and implant survivorship. However, the abundance of studies has made it challenging to establish a clear overview. This paper provides an overview of the current concepts of UKA, evaluating various aspects of UKA referencing to patient satisfaction and providing a recap of its historical development.</div><div>Available research demonstrated no significantly universal superior variant of UKA.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100349"},"PeriodicalIF":2.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preoperative, intraoperative, and postoperative concepts to prevent infection for unicompartmental knee arthroplasty","authors":"Pradyumna Raval, Myles Coolican","doi":"10.1016/j.jisako.2024.100345","DOIUrl":"10.1016/j.jisako.2024.100345","url":null,"abstract":"<div><div>Periprosthetic joint infection (PJI) is a complication that occurs in less than 1% of patients after unicompartmental knee arthroplasty (UKA). Though infrequent, it may potentially lead to revision while placing a significant financial burden on the healthcare system. Preoperative, intra-operative, and postoperative strategies should be implemented to minimize the risk of PJI. Patient optimization prior to surgery can help to identify patients at risk for PJI and also maximize the health of the patient prior to surgery. Intraoperative and postoperative strategies can also mitigate the risk of postoperative infection. This article will summarize the evidence for preoperative, intra-operative, and postoperative strategies to prevent PJI in UKA. This will include topics on malnutrition and obesity, <em>Staphylococcus aureus</em>, smoking, human immunodeficiency virus, rheumatoid arthritis, as well as skin preparation, laminar air flow, preoperative antibiotic administration antimicrobial incision drapes, pulsatile lavage, vancomycin powder, wound closure method, thromboprophylactic agents, and closed incisional negative pressure wound therapy dressings.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100345"},"PeriodicalIF":2.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magaly Iñiguez C. , Zoy Anastasiadis , María Ignacia Nazer , Rodrigo Sandoval
{"title":"Cemented versus cementless unicompartmental knee arthroplasty","authors":"Magaly Iñiguez C. , Zoy Anastasiadis , María Ignacia Nazer , Rodrigo Sandoval","doi":"10.1016/j.jisako.2024.100340","DOIUrl":"10.1016/j.jisako.2024.100340","url":null,"abstract":"<div><div>Unicompartmental knee arthroplasty (UKA) offers a more conservative treatment than total knee arthroplasty when osteoarthritis affects only one tibiofemoral knee compartment. Cemented UKA has become the gold standard due to its good functional outcomes and low revision rates. The most common reasons for revision with cemented UKA include aseptic loss, unexplained pain, and radiolucent lines. Cementless UKA, which adds a porous coating of titanium and hydroxyapatite as well as an additional peg on the femoral component, has been shown to reduce the prevalence of radiolucencies compared to cemented UKAs. National registry data have demonstrated comparable functional outcomes and improved revision rates with cementless UKA. This review aims to summarize various advancements in unicompartmental prostheses, and to highlight how the conceptual advantages of the cementless model lead to superior implant survivorship and functional outcomes.</div></div>","PeriodicalId":36847,"journal":{"name":"Journal of ISAKOS Joint Disorders & Orthopaedic Sports Medicine","volume":"9 6","pages":"Article 100340"},"PeriodicalIF":2.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}