Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology最新文献

{"title":"Effect of inside-out meniscal repair on meniscal dimension in meniscal tear patients","authors":"Takuya Kinoshita ,&nbsp;Yusuke Hashimoto ,&nbsp;Kazuya Nishino ,&nbsp;Ken Iida ,&nbsp;Hiroaki Nakamura","doi":"10.1016/j.asmart.2024.03.002","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.03.002","url":null,"abstract":"<div><h3>Background</h3><p>It remains controversial whether meniscal repair causes meniscal extrusion. This study aimed to investigate the effect of inside-out meniscal repair on meniscal dimensions in patients with meniscal tear of the mid-body–posterior horn.</p></div><div><h3>Methods</h3><p>This retrospective study included 75 patients who underwent meniscal repair followed by MRI within 2 weeks after surgery between 2020 and 2022. Patients with a discoid lateral meniscus, pull-out repair, concomitant osteotomy, all-inside repair only, and revision surgery were excluded. Thirty-three meniscal tear treated using an inside-out arthroscopic repair technique were included in the lateral meniscus (LM, n = 19) and medial meniscus (MM, n = 14) tear groups. Thirty-six participants with intact meniscus were included as controls. Meniscal extrusion and posterior shift were measured on coronal and sagittal MRI pre-operatively and within 2 weeks postoperatively.</p></div><div><h3>Results</h3><p>Preoperative coronal extrusion was significantly greater in the LM tear group than in the control group (P = 0.001). Coronal extrusion and posterior shift were significantly smaller postoperatively than preoperatively in the LM tear group (P &lt; 0.001 and, P = 0.008, respectively). Pre- and postoperative coronal extrusion in the MM tear group were not significantly different (P = 0.291). Postoperative coronal extrusion in both LM and MM tear groups were not significantly correlated with the number of sutures required for repair (LM: P = 0.765, R = −0.076, MM: P = 0.1, R = 0.497).</p></div><div><h3>Conclusions</h3><p>The torn meniscus of the mid-body - posterior horn before surgery was extruded and shifted posteriorly in both LM and MM tears, and repair using an inside-out arthroscopic technique was effective in reducing meniscal extrusion and posteriors shift in the LM tear immediately after surgery.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 50-57"},"PeriodicalIF":2.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000098/pdfft?md5=0cb1d51220f9497152a0ce6b7fb2a606&pid=1-s2.0-S2214687324000098-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140536479","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":"Injuries to both anterolateral ligament and Kaplan fiber of the iliotibial band do not increase preoperative pivot-shift phenomenon in ACL injury","authors":"Takeo Tokura,&nbsp;Kanto Nagai,&nbsp;Yuichi Hoshino,&nbsp;Shu Watanabe,&nbsp;Noriyuki Kanzaki,&nbsp;Kyohei Nishida,&nbsp;Takehiko Matsushita,&nbsp;Ryosuke Kuroda","doi":"10.1016/j.asmart.2024.03.004","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.03.004","url":null,"abstract":"<div><h3>Background</h3><p>To assess the incidence of anterolateral ligament (ALL) and Kaplan fiber of the iliotibial band (KF) injuries in patients with acute anterior cruciate ligament (ACL) injury on magnetic resonance imaging (MRI), and to investigate the association between these injuries and the magnitude of preoperative pivot-shift test.</p></div><div><h3>Method</h3><p>One-hundred and five patients with primary ACL injury were retrospectively reviewed. ALL injury and KF injury were assessed by preoperative MRI, and subjects were allocated into four groups: Group A, neither injury; Group B, only ALL injury; Group C, only KF injury; Group D, simultaneous ALL and KF injuries. Before ACL reconstruction, tibial acceleration during the pivot-shift test was measured by an electromagnetic measurement system, and manual grading was recorded according to the International Knee Documentation Committee (IKDC) guideline.</p></div><div><h3>Results</h3><p>In MRI, the ALL was identified in 104 patients (99.1%) and KF in 99 patients (94.3%). ALL and KF injuries were observed in 43 patients (43.9%) and 23 patients (23.5%), respectively. Patient distribution to each group was as follows; Group A: 43 patients (43.9%), Group B: 32 patients (32.7%), Group C: 12 patients (12.2%), Group D: 11 patients (11.2%). No significant differences were observed in tibial acceleration, and manual grading among the four groups.</p></div><div><h3>Conclusion</h3><p>Simultaneous injury to both ALL and KF was uncommon, and preoperative pivot-shift phenomenon did not increase even in those patients. The finding suggests that the role of ALL and KF in controlling anterolateral rotatory knee laxity may be less evident in the clinical setting compared to a biomechanical test setting.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 40-44"},"PeriodicalIF":2.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000116/pdfft?md5=00836a5c56443bb75c159bc5fc9804f8&pid=1-s2.0-S2214687324000116-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140339656","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":"Histologic and biomechanical comparison of fascia lata autograft, acellular dermal xenograft, and synthetic patch for bridging massive rotator cuff tear in a rabbit model","authors":"Yuyan Na ,&nbsp;Hao Jue ,&nbsp;Tian Xia ,&nbsp;Xiaoao Xue,&nbsp;Luyi Sun,&nbsp;Jun Chen,&nbsp;Yinghui Hua","doi":"10.1016/j.asmart.2024.01.007","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.007","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background&lt;/h3&gt;&lt;p&gt;Bridging repair has emerged as a promising and reliable treatment strategy for the massive rotator cuff tears (MRCTs). However, there remains a lack of evidence on which bridging graft provides the better repair results, and a dearth of animal studies comparing bridging repairs with different grafts. The purpose of this study was to evaluate the histological and biomechanical outcomes of commonly used grafts (autologous fascia lata (FL), acellular dermal matrix graft (ADM), and polyethylene terephthalate (PET) patch).&lt;/p&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;p&gt;A total of 66 male New Zealand White Rabbits were used to mimic a model of unilateral chronic MRCTs. The rabbits were randomly divided into three groups: (1) FL group, which underwent bridging repair with autologous FL; (2) ADM group, which underwent bridging with ADM; and (3) PET group, which underwent bridging with PET patch. Tissue samples were collected and subjected to histological analysis using Hematoxylin and eosin, Picrosirius red, Safranin O/Fast green staining, and Immunostaining. Collagen diameter and fibril density in the regenerated tendon was analyzed with transmission electron microscopy (TEM). Additionally, biomechanical tests were performed at 6 and 12 weeks after repair.&lt;/p&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;p&gt;The regenerated tendon successfully reattached to the footprint in all experimental groups. At 6 weeks after repair, the FL group had a significantly higher Modified Tendon Histological Evaluation (MTHE) score at the regenerated tendon than the PET group (13.2 ± 1.64 vs 9.6 ± 1.95, respectively; &lt;em&gt;P&lt;/em&gt; = 0.038). The picrosirius red staining results showed that the FL group had a significantly higher type I collagen content than the ADM and PET groups at 6 weeks, and this difference was sustained with the PET group at 12 weeks (&lt;em&gt;P&lt;/em&gt; &lt; 0.05). Immunofluorescence analysis against CD68 indicated that the number of macrophage infiltrates was significantly lower in the FL group than in the ADM and PET groups (&lt;em&gt;P&lt;/em&gt; &lt; 0.05). At 12 weeks after repair, the area of Safranin O metachromasia was significant greater in ADM group than that in the PET group (&lt;em&gt;P&lt;/em&gt; = 0.01). The FL group showed a significantly larger collagen diameter in the regenerated tendon than the PET group (&lt;em&gt;P&lt;/em&gt; &lt; 0.05), as indicated by TEM results. Furthermore, the FL group resulted in a greater failure load (at 6 weeks; 118.40 ± 16.70 N vs 93.75 ± 9.06 N, respectively; &lt;em&gt;P&lt;/em&gt; = 0.019) and elastic modulus (at 6 weeks; 12.28 ± 1.94 MPa vs 9.58 ± 0.79 MPa, respectively; &lt;em&gt;P&lt;/em&gt; = 0.024; at 12 weeks; 15.02 ± 2.36 MPa vs 11.63 ± 1.20 MPa, respectively; &lt;em&gt;P&lt;/em&gt; = 0.032) than the ADM group.&lt;/p&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;p&gt;This study demonstrated that all three grafts could successfully bridging chronic MRCTs in a rabbit model. However, autologous FL promoted tendon regeneration and maturation, and enhanced the tensile properties of the tendon-to-bone comple","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 28-39"},"PeriodicalIF":2.1,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000074/pdfft?md5=a86699757fb555004f732e078ced6e8c&pid=1-s2.0-S2214687324000074-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140320634","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":"Combined over-the-top reconstruction with posterolateral bundle remnant re-tensioning in pediatric anterior cruciate ligament reconstruction: A technical note","authors":"Goki Kamei ,&nbsp;Kyohei Nakata ,&nbsp;Akinori Nekomoto ,&nbsp;Naofumi Hashiguchi ,&nbsp;Shunya Tsuji ,&nbsp;Masakazu Ishikawa ,&nbsp;Atsuo Nakamae ,&nbsp;Nobuo Adachi","doi":"10.1016/j.asmart.2024.01.001","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.001","url":null,"abstract":"<div><p>Epiphyseal injury, particular on femoral side, is a major concern in pediatric anterior cruciate ligament (ACL) reconstruction. Therefore, the over-the-top route (OTTR) method has frequently been selected in pediatric ACL reconstruction, with good clinical results reported. However, a cadaver study reported the inferior rotational stability of the OTTR method to that of anatomical single bundle reconstruction. In recent years, a new method of reconstruction, which involves the remnant being detached, re-tensioned, and re-attached, achieved good short-term results. We developed a surgical method to restore the remnant to the posterolateral (PL) bundle footprint and obtain rotational stability in patients, thereby preserving the remnant. We hypothesized that repairing the residual remnant to the PL bundle footprint in pediatric ACL reconstruction could achieve rotational stability. This report offers the surgical techniques for PL bundle tensioning repair using remnants in the pediatric ACL OTTR procedure.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 24-27"},"PeriodicalIF":2.1,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000013/pdfft?md5=481c33f78e40aed995122ef371a61bfe&pid=1-s2.0-S2214687324000013-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139975963","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":"Effect of knee bracing on clinical outcomes following anterior cruciate ligament reconstruction: A prospective randomised controlled study","authors":"Ukris Gunadham ,&nbsp;Patarawan Woratanarat","doi":"10.1016/j.asmart.2024.01.006","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.006","url":null,"abstract":"<div><h3>Objectives</h3><p>While there is a consensus against bracing after anterior cruciate ligament (ACL) reconstruction, the question of its potential benefits, especially in cases involving meniscus repair, as well as its routine use by the majority of clinicians, remains a topic of debate. This study aims to assess the effectiveness of bracing in relation to clinical scores after ACL reconstruction, regardless of meniscus surgery.</p></div><div><h3>Methods</h3><p>This randomised controlled study involved patients aged 15–55 years who underwent arthroscopic ACL reconstruction surgery. All eligible patients were assigned into two groups: one group received an adjustable frame with a four-point fixation knee brace for a four-week period, while the other did not.</p><p>A single experienced surgeon performed standard anatomical single-bundle ACL reconstruction. All patients, irrespective of whether they underwent meniscus repair, followed the same rehabilitation protocol. Knee functional questionnaires, including the International Knee Documentation Committee (IKDC) score, Lysholm score, Tegner Activity Scale, Visual Analogue Scale (VAS), and examinations, were collected preoperatively, at six months, one year, and two years postoperatively. The study employed an intention-to-treat analysis and multilevel mixed-effects generalised linear models to compare continuous outcomes between the groups, adjusting for the times of follow-up.</p></div><div><h3>Results</h3><p>A total of 84 patients (42 patients per group) comprised of 75 males (89 %) and average age of 30 ± 9.4 years old. Patient-reported function, physical examination findings, and surgical characteristics were comparable between the two groups. (P-value &gt;0.05) Both groups demonstrated significant improvement in IKDC and Lysholm scores at the end of the two-year follow-up period. (P-value &lt;0.0001) In multivariate analysis, bracing was significantly associated with lower Tegner activity scale than the non-brace group after adjustment for VAS and time (coefficient −0.49, 95 % confidence interval −0.87, −0.10, P-value = 0.013). None of the graft ruptures were reported, and there was no significant difference of return to sports between the groups at the end of the follow-up.</p></div><div><h3>Conclusion</h3><p>The study suggests that knee bracing after ACL reconstruction, regardless of any additional meniscus procedures, fails to enhance subjective or objective outcomes and could potentially have a negative impact on the Tegner activity scale, although the difference is not clinically significant. The routine use of a postoperative brace should be discontinued.</p></div><div><h3>Level of evidence</h3><p>Level I, Randomised controlled trial with no negative criteria.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 18-23"},"PeriodicalIF":2.1,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000062/pdfft?md5=35e2fc92d7adae9624dd01499742e933&pid=1-s2.0-S2214687324000062-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139907961","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":"Factors affecting the post-operative over-constraint after anatomic double-bundle anterior cruciate ligament reconstruction","authors":"Miki Kuroda ,&nbsp;Tatsuo Mae ,&nbsp;Hidenori Otsubo ,&nbsp;Tomoyuki Suzuki ,&nbsp;Shinichiro Okimura ,&nbsp;Norinao Matsumoto","doi":"10.1016/j.asmart.2024.01.002","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.002","url":null,"abstract":"<div><h3>Objective</h3><p>Initial tension at graft fixation is one of key factors for good outcomes in anterior cruciate ligament (ACL) reconstruction. Identifying the pre-operative factors that influence postoperative knee laxity under the anterior tibial load is useful in determining the initial tension at graft fixation. Thus, the purpose of this study was to clarify the pre-operative factors affecting the side-to-side difference in anterior laxity immediately after the anatomic double-bundle ACL reconstruction with a constant initial tension.</p></div><div><h3>Methods</h3><p>Fifty-five patients underwent the anatomic double-bundle ACL reconstruction with hamstring tendon grafts. Anterior tibial displacement (ATD) was measured on both knees using KT-2000 Knee Arthrometer under anterior drawer load of 67 N, 89 N, 134 N and manual maximum load at 30° of flexion before ACL reconstruction under anesthesia, and was also measured on the operated knees under 89 N immediately after ACL reconstruction under anesthesia. Then, side-to-side difference (SSD) before and immediately after ACL reconstruction was calculated. Correlative relation between the SSD immediately after ACL reconstruction and the ATD/the SSD in each condition was analyzed.</p></div><div><h3>Results</h3><p>The side-to-side difference of ATD immediately after surgery was −3.8 ± 1.7 mm (0 to -8mm) in response of 89 N of anterior load. There was correlation between the SSD immediately after ACL reconstruction and all ATD on both knees except for the ATD under manual maximum load on the injured knee, while little correlation between the SSD immediately after ACL reconstruction and that before ACL reconstruction was found. Especially, ATD under 89 N on the opposite knees and ATD under 134 N on the injured knees showed selective correlation with the SSD immediately after surgery in the step-wise multiple regression analysis.</p></div><div><h3>Conclusion</h3><p>As the anterior tibial displacements under 89 N on the contra-lateral knee and under 134 N on the injured knee had a significant correlation with the SSD immediately after ACL reconstruction, those values may be helpful in determining the increase or decrease in initial tension at graft fixation.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 13-17"},"PeriodicalIF":2.1,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000025/pdfft?md5=32b233c1d647bc0295ce6079313bdeba&pid=1-s2.0-S2214687324000025-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139699447","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":"The effect of continuous interscalene brachial plexus block for arthroscopic rotator cuff repair","authors":"Tomohiro Uno ,&nbsp;Nariyuki Mura ,&nbsp;Issei Yuki ,&nbsp;Ryuta Oishi ,&nbsp;Michiaki Takagi","doi":"10.1016/j.asmart.2024.01.004","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.004","url":null,"abstract":"<div><h3>Background</h3><p>Arthroscopic rotator cuff repair (ARCR) is a minimally invasive surgical technique. However, it is challenging to control postoperative pain. This study aimed to investigate the difference between a single-shot interscalene block and a combined continuous block for ARCR.</p></div><div><h3>Methods</h3><p>Ninety-four patients who underwent ARCR were included in this study. In the preceding period, 43 patients received a single-shot interscalene block and continuous postoperative intravenous opioid infusion (Single group). In the posterior period, 51 patients received a single-shot interscalene block preoperatively and a continuous block postoperatively (Continuous group). Their mean age at surgery was 64.9 years (range, 43–83 years). The mean follow-up period was 25.4 months (range, 24–54 months). The numerical rating scale (NRS) of pain was evaluated immediately after the surgery, at rest, and at night for 1–4 days after the surgery. One day postoperatively, the amount of food taken was assessed from 0 % (no food intake) to 100 % (all food taken). The University of California at Los Angeles (UCLA) shoulder score, range of motion (ROM), and isometric shoulder strength were evaluated.</p></div><div><h3>Results</h3><p>NRS at rest in the Continuous group on the day of surgery was 3.7 ± 2.5. This was significantly lower than in the Single group (5.2 ± 1.8) (<em>P</em> = 0.002). NRS at rest in the Continuous group on the second day after surgery was 3.0 ± 2.1, significantly lower than in the Single group (3.9 ± 1.8) (<em>P</em> = 0.04). The amount of food taken in the morning in the Continuous group was 61 % ± 37 %, which was significantly greater than in the Single group (35 % ± 41 %) (<em>P</em> = 0.004). The ROM of extension at 6 months postoperatively in the Continuous group was 47 ± 7°, which was significantly greater than in the Single group (43 ± 6°) (<em>P =</em> 0.02). The postoperative strength of the external rotator at 6 months in the Continuous group was 95 ± 33 N, significantly greater than in the Single group (78 ± 28 N) (<em>P</em> = 0.01). There was no significant difference in UCLA score at any time.</p></div><div><h3>Conclusion</h3><p>The continuous interscalene block with ultrasound guidance in ARCR effectively relieved pain. The recovery of ROM for extension and the strength of the external rotator was better in the Continuous group.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 6-12"},"PeriodicalIF":2.1,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000049/pdfft?md5=8baa9211d10237229461c1aeefddff57&pid=1-s2.0-S2214687324000049-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139674140","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":"In vivo three-dimensional kinematic comparison of normal knees between flexion and extension activities","authors":"Kenichi Kono ,&nbsp;Takaharu Yamazaki ,&nbsp;Shuji Taketomi ,&nbsp;Hiroshi Inui ,&nbsp;Sakae Tanaka ,&nbsp;Tetsuya Tomita","doi":"10.1016/j.asmart.2024.01.003","DOIUrl":"https://doi.org/10.1016/j.asmart.2024.01.003","url":null,"abstract":"<div><h3>Background/Objective</h3><p>Normal knee kinematics during flexion and extension activities over the whole range of motion remains unknown. This study aimed to clarify in vivo kinematics during knee flexion and extension activities of normal knees by comparing continuous flexion and extension activities up to a high flexion angle.</p></div><div><h3>Methods</h3><p>Twenty knees of 10 Japanese volunteers were enrolled in this study. Each volunteer performed a continuous squatting motion under fluoroscopy, and a two- or three-dimensional registration technique was used. Rotation and anteroposterior translation of the medial and lateral sides of the femur relative to the tibia at each flexion angle were evaluated.</p></div><div><h3>Results</h3><p>Femoral external rotation was significantly smaller from 10° to 40° flexion during extension activities than during flexion activities. However, the femoral external rotation was larger from 120° to 130° flexion during extension activities than during flexion activities. From 10° to 60° of flexion, the medial side was significantly more posteriorly located during extension activities than during flexion activities. Furthermore, the lateral side was significantly more posteriorly located at 130° of flexion during extension activities than during flexion activities.</p></div><div><h3>Conclusion</h3><p>In vivo kinematics of normal knees during extension activities differ from those during flexion activities in early and high flexion.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"36 ","pages":"Pages 1-5"},"PeriodicalIF":2.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000037/pdfft?md5=461452910d70e30cb9d1c2bd548eb04e&pid=1-s2.0-S2214687324000037-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139674139","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":"Effect of limb alignment correction on medial meniscus extrusion under loading condition in high tibial osteotomy","authors":"Yosuke Ishii ,&nbsp;Masakazu Ishikawa ,&nbsp;Goki Kamei ,&nbsp;Yuko Nakashima ,&nbsp;Yoshitaka Iwamoto ,&nbsp;Makoto Takahashi ,&nbsp;Nobuo Adachi","doi":"10.1016/j.asmart.2023.08.010","DOIUrl":"10.1016/j.asmart.2023.08.010","url":null,"abstract":"<div><h3>Background</h3><p>This study aimed to investigate the effect of high tibial osteotomy (HTO) on medial meniscus extrusion (MME) and the association between the changes in limb alignment and MME under weight-bearing (WB) conditions after HTO.</p></div><div><h3>Methods</h3><p>We included 17 patients with knee osteoarthritis (OA) who underwent HTO. MME was evaluated using ultrasonography in supine and unipedal standing positions. Knee alignment was evaluated radiographically using WB, whole-leg radiographs with the hip-knee-ankle angle (HKAA), percentage of the mechanical axis (%MA), medial proximal tibial angle (MPTA), and joint line convergence angle (JLCA). All measurements were performed serially at four time points: preoperative and 3, 6, and 12 months postoperative. Clinical outcomes were assessed by knee injury and osteoarthrosis outcome score (KOOS) and visual analogue scale (VAS) value for pain.</p></div><div><h3>Results</h3><p>Mean MME in the WB position was significantly greater than that in the supine position in the preoperative condition; however, MME in both supine and WB positions was significantly lowered postoperatively. The ΔMME, difference of MME between supine and WB positions, was significantly lowered postoperatively and maintained for up to 1 year. MME change in the WB position between preop and postoperative conditions was significantly correlated with change in HKAA and %MA at 1 year postoperative. KOOS and VAS score were significantly improved after HTO.</p></div><div><h3>Conclusions</h3><p>HTO correcting varus alignment can decrease MME in WB position and minimise the change in MME between supine and WB positions. The changes in MME after HTO were correlated with changes in the mechanical alignments.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"34 ","pages":"Pages 1-8"},"PeriodicalIF":2.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/aa/81/main.PMC10493499.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10228392","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":"Therapeutic effects following extracorporeal shock wave therapy for insertional and non-insertional Achilles tendinopathy","authors":"Hong Li ,&nbsp;Wei Yao ,&nbsp;Xiao'ao Xue ,&nbsp;Yunxia Li ,&nbsp;Yinghui Hua","doi":"10.1016/j.asmart.2023.09.001","DOIUrl":"10.1016/j.asmart.2023.09.001","url":null,"abstract":"<div><h3>Background</h3><p>The treatment for Achilles tendinopathy varies widely, and there is no consensus regarding the optimal treatment for both non-insertional and insertional Achilles tendinopathy. The purpose of this study was to evaluate the clinical efficacy of extracorporeal shock wave therapy (ESWT) in the treatment of insertional and non-insertional Achilles tendinopathy (AT).</p></div><div><h3>Methods</h3><p>Sixty patients with AT were invited to participate in this study. Patients were allocated to one of two groups according to the site of the AT, including an insertional AT (IAT) group and a non-insertional AT (NIAT) group. ESWT was performed once a week for five weeks for both groups. The Victorian Institute of Sport Assessment-Achilles questionnaire (VISA-A) score and the visual analog scale (VAS) were used five times to evaluate the clinical outcomes, including before treatment, immediately after treatment, as well as one month, three months, and five years after treatment.</p></div><div><h3>Results</h3><p>At three months after treatment, the IAT group exhibited a significantly higher VISA-A score (82 ± 6 <em>vs.</em> 76 ± 11; <em>p</em> = 0.01) and a significantly lower VAS score (1 ± 1 <em>vs.</em> 2 ± 1; <em>p</em> &lt; 0.001) when compared with the NIAT group. At the five-year assessment, the IAT group (1 ± 1) had a significantly lower VAS score than the NIAT group (2 ± 1) (<em>p</em> = 0.02), while no significant difference for the VISA-A score was observed between the groups (84 ± 8 <em>vs.</em> 84 ± 10; <em>p</em> = 0.98).</p></div><div><h3>Conclusions</h3><p>Extracorporeal shock wave treatment can improve the symptoms of both insertional and non-insertional AT. The IAT patients experienced better clinical outcomes compared with the NIAT patients.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"34 ","pages":"Pages 38-45"},"PeriodicalIF":2.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cc/5c/main.PMC10582256.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685600","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}