Arthroplasty最新文献

{"title":"Conversion of UKA to TKA using identical standard implants-How does it compare to primary UKA, primary TKA and revision TKA?","authors":"Christian B Scheele, Matthias F Pietschmann, Thomas C Wagner, Peter E Müller","doi":"10.1186/s42836-024-00267-x","DOIUrl":"10.1186/s42836-024-00267-x","url":null,"abstract":"<p><strong>Background: </strong>UKA is a well-established treatment option for anteromedial osteoarthritis of the knee, resulting in superior functional outcomes but also higher revision rates than TKA. This study aimed to compare the outcomes of UKA, TKA, UKA converted to TKA using identical standard implants and revised TKA to support clinical decision-making.</p><p><strong>Methods: </strong>In this study, we retrospectively examined 116 patients who underwent UKA, 77 patients who received TKA, 28 patients whose UKA was converted to TKA using identical standard implants, and 21 patients who had a one-stage revision of TKA. The mean age at operation was 66.5 years (39-90 years), with a mean BMI of 28.8 kg/m² (17.4-58.8) and a mean follow-up period of four years (0.9-9.9 years). We assessed various PROMs, including Oxford Knee Score, UCLA score, KSS score, and a modified WOMAC-Score as well as patient satisfaction and ability to resume daily activities, work, and sports.</p><p><strong>Results: </strong>The highest patient satisfaction was seen in the UKA. All scores were significantly higher for UKA than for TKA, converted UKA, and revised TKA. None of the scores showed a significant inferiority of converted UKA to TKA. In the case of revision, two scores showed significantly better results for converted UKA than for revised TKA.</p><p><strong>Conclusions: </strong>Our results indicated that patients initially treated with UKA did not have significantly worse functional outcomes after conversion to TKA, given the use of identical standard implants. This highlights the effectiveness of UKA as a therapeutic option with outcomes superior to those of primary TKA and the importance of a bone-sparing procedure. Conversely, revision TKA is linked to poorer functional outcomes compared to both primary arthroplasties.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11370294/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142121053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability of pre-resection ligament tension assessment in imageless robotic assisted total knee replacement.","authors":"Dennis K H Yee, Jonathan T C Leung, Vikki Chu, Gene Man, Gloria Y T Lam, Jimmy K Y Lau, Tsz-Lung Choi, Wai-Wang Chau, Jonathan Patrick Ng, Michael Tim-Yun Ong, Kevin Ki-Wai Ho, Patrick Shu-Hang Yung","doi":"10.1186/s42836-024-00266-y","DOIUrl":"10.1186/s42836-024-00266-y","url":null,"abstract":"<p><strong>Background: </strong>Ligament tension balance is a major determinant for the success of total knee replacement (TKR). The present study aimed at determining the inter-rater and intra-rater reliability in performing ligament tension assessment using an imageless robotic-assisted TKR.</p><p><strong>Methods: </strong>Twenty-four knees in 21 patients who received robotic-assisted TKR for end-stage varus osteoarthritis were examined. Three orthopedic specialists and six orthopedic trainees participated in the operations. Data from the ligament tension assessment were collected during the operations.</p><p><strong>Results: </strong>For the inter-rater reliability, \"extension medial\" and \"flexion medial\" had excellent reliability whilst \"extension lateral\" and \"flexion lateral\" had good-to-excellent reliability. For the intra-rater reliability, \"extension medial\" showed excellent reliability, \"extension lateral\" and \"flexion medial\" showed good-to-excellent reliability, and \"flexion lateral\" showed moderate-to-excellent reliability.</p><p><strong>Conclusions: </strong>Robotic-assisted technology provides a reliable solution to improve ligament tension assessment. All ligament tension assessments with the use of the technology could demonstrate at least good-to-excellent reliability except for the intra-rater reliability of \"flexion lateral\".</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11367864/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142114685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Should we be concerned when the anterior approach to the hip goes accidentally medial? A retrospective study.","authors":"Giuseppe Geraci, Alberto Di Martino, Niccolò Stefanini, Matteo Brunello, Federico Ruta, Federico Pilla, Francesco Traina, Cesare Faldini","doi":"10.1186/s42836-024-00269-9","DOIUrl":"10.1186/s42836-024-00269-9","url":null,"abstract":"<p><strong>Background: </strong>The direct anterior approach is increasingly used for primary total hip arthroplasty (THA) due to its minimally invasive nature and rapid recovery time. Difficulties in identifying the correct intermuscular interval can arise during the procedure, sometimes resulting in excessive medial exposure. This study aimed to evaluate demographics and risk factors, outcomes, and potential complications in those THA patients in which a medialized approach was performed.</p><p><strong>Methods: </strong>We retrospectively reviewed cases of anterior THA to identify cases where the surgical approach to the hip was more medial than the standard interval. Demographic data, operative time, blood loss, intraoperative and postoperative complications, radiographic findings were collected and compared with a control group of 50 THA performed using the standard anterior intermuscular interval.</p><p><strong>Results: </strong>In a series of 1,450 anterior total hip arthroplasty (THA) procedures performed between January 2018 and December 2021, with an average follow-up of 33 ± 22.3 months, six patients (0.4%) had a medialized surgical interval. In one case the superficial layer was medial to the sartorious muscle while in the other five cases, the interval was lateral to the sartorius superficially, and medial to the rectus femoris deeply. Four out of 6 patients (66.6%) showed neuropraxia affecting the femoral nerve, and 3 out of 6 (50%) had involvement of the lateral femoral cutaneous nerve. In 6 out of 6 patients (100%), surgery was performed during the learning curve of DAA. No patients in the control group developed femoral nerve neuropraxia, and 2 out of 50 patients (4%) showed involvement of the lateral femoral cutaneous nerve.</p><p><strong>Discussion and conclusion: </strong>The anterior approach can rarely result in excessive medial exposure to the hip joint, especially during the learning curve. In our study cohort, an increased rate of neurological complications and reduced outcomes were observed, thereby rendering this event of particular clinical significance. To avoid unconventional intermuscular intervals, patient positioning and correct identification of the muscle bellies by recognizing the orientation of the muscle fibers are useful, together with the identification and ligation of the circumflex vessels, to ensure the identification of the correct intermuscular interval.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11366135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142114686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soft tissue laxity is highly variable in patients undergoing total knee arthroplasty.","authors":"Travis R Weiner, Roshan P Shah, Alexander L Neuwirth, Jeffrey A Geller, H John Cooper","doi":"10.1186/s42836-024-00268-w","DOIUrl":"10.1186/s42836-024-00268-w","url":null,"abstract":"<p><strong>Background: </strong>One major goal of total knee arthroplasty (TKA) is to achieve balanced medial and lateral gaps in flexion and extension. While bone resections are planned by the surgeon, soft tissue laxity is largely intrinsic and patient-specific in the absence of additional soft tissue releases. We sought to determine the variability in soft tissue laxity in patients undergoing TKA.</p><p><strong>Methods: </strong>We retrospectively reviewed 113 patients undergoing TKA. Data on preoperative knee deformity were collected. Data from a dynamic intraoperative stress examination were collected by a robotic tracking system to quantify maximal medial and lateral opening in flexion (85-95 degrees) and extension (-5-20 degrees). T-tests were used to assess the differences between continuous variables.</p><p><strong>Results: </strong>A valgus stress opened the medial compartment a mean of 4.3 ± 2.3 mm (0.0-12.4 mm) in extension and 4.6 ± 2.3 mm (0.0-12.9 mm) in flexion. A varus stress opened the lateral compartment a mean of 5.4 ± 2.4 mm (0.3-12.6 mm) in extension and 6.2 ± 2.5 mm (0.0-13.4 mm) in flexion. The medial compartment of varus knees opened significantly more in response to valgus stress than valgus knees in both extension (5.2 mm vs. 2.6 mm; P < 0.0001) and flexion (5.4 mm vs 3.3 mm; P < 0.0001). The lateral compartment of valgus knees opened significantly more in response to varus stress than varus knees in both extension (6.7 mm vs. 4.8 mm; P < 0.0001) and flexion (7.4 mm vs. 5.8 mm; P = 0.0003).</p><p><strong>Conclusions: </strong>Soft tissue laxity is highly variable in patients undergoing TKA, contributing anywhere from 0-13 mm to the post-resection gap. Only a small part of this variability is predictable by preoperative deformity. These findings have implications for either measured-resection or gap-balancing techniques.</p><p><strong>Level of evidence: </strong>Level III.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11304560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141898880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Initiation of a novel text messaging system in total knee and hip arthroplasty.","authors":"Johannes M van der Merwe, Michaela E Nickol","doi":"10.1186/s42836-024-00265-z","DOIUrl":"10.1186/s42836-024-00265-z","url":null,"abstract":"<p><strong>Background: </strong>The primary objective of this study was to investigate whether using a novel text messaging system improves patient overall satisfaction compared to standard care. Secondary objectives included assessing the impact of the text messaging system on decreasing narcotic usage, the number of emergency department visits, the range of flexion and extension, and number of telephone calls to the surgeon's office.</p><p><strong>Methods: </strong>We enrolled 217 patients to either receive informative text messages (text messaging group, n = 86) or no additional text messages (conventional group, n = 131). Patients self-reported results on a questionnaire at the 6-week follow-up regarding the primary and secondary objectives. The active range of motion of total knee arthroplasty patients was recorded by the surgeon or treating physiotherapist.</p><p><strong>Results: </strong>There was no significant difference in overall satisfaction (P = 0.644), narcotic cessation (P = 0.185), range of motion (Flexion P = 0.521; Extension P = 0.515), and emergency department visits (P = 0.650) between the two groups. There was a statistically significant decrease in surgeon office calls favoring the text messaging group (P = 0.029). A subgroup analysis revealed that the statistical difference was mainly in the TKA group (P = 0.046).</p><p><strong>Conclusions: </strong>A novel text messaging system may help reduce the work burden by decreasing telephone calls to the surgeon's office. While satisfaction, narcotic usage, emergency department visits, and range of motion did not significantly differ, patients endorsed the system for friends/family.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11298075/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141890918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is there an increased revision rate due to early tibial component loosening with a modern total knee arthroplasty design? A retrospective analysis from a large volume arthroplasty centre.","authors":"Bernard H van Duren, Jonathan France, Reshid Berber, Hosam E Matar, Peter J James, Benjamin V Bloch","doi":"10.1186/s42836-024-00264-0","DOIUrl":"10.1186/s42836-024-00264-0","url":null,"abstract":"<p><strong>Background: </strong>The Attune TKR was introduced in 2011 as a successor to its predicate design The PFC Sigma. However, following reports of early failures, there are ongoing concerns related to increased loosening rates. Given the concerns, this study aimed to compare revision rates of the Attune implant to an established predicate, and other implant designs used in a high-volume arthroplasty center.</p><p><strong>Methods: </strong>We identified 10,202 patients who underwent primary cemented TKR at our institution with a minimum of 1 year follow-up, involving 2406 Attune TKR (557 S +), 4642 PFC TKR, 3154 other designs. Primary outcomes were revision for all-causes, aseptic loosening of any component, and aseptic tibial loosening. Kaplan-Meier survival and Cox regression models were used to compare groups. Matched cohorts were selected for radiographic analysis.</p><p><strong>Results: </strong>308 knees were revised. The Attune cohort had the lowest risk of revision, with a rate of 2.98 per 1000 implant-years while the PFC and All Other Implant groups had a rate of 3.15 and 4.4 respectively. Aseptic loosing was the most common cause for revision, with 76% (65/88) involving the tibia. Survival analysis showed no significant differences between the Attune and other cohorts. Radiolucent lines were detected in 7.1% of the Attune S + group, 6.8% of the standard Attune group, and 6.3% of the PFC group, with no significant differences found between them.</p><p><strong>Conclusion: </strong>This study represents the largest non-registry review of the Attune TKR in comparison to a predicate and other designs. There was no significant increased revision rate for all-cause revision or aseptic loosening, or peri-implant radiolucencies. It appears that increased loosening may not be as concerning as originally thought.</p><p><strong>Level of evidence: </strong>Level III.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11297728/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141879773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of image recognition-based tracker-less augmented reality navigation system in a series of sawbone trials.","authors":"Elvis Chun-Sing Chui, Kyle Ka-Kwan Mak, Randy Hin-Ting Ng, Ericsson Chun-Hai Fung, Harold Hei-Ka Mak, Mei-Shuen Chan, Wei Zhao, Xiuyun Su, Jin Zhang, Jianglong Xu, Hongxun Sang, Guoxian Pei, Michael Tim-Yun Ong, Wing-Hoi Cheung, Sheung-Wai Law, Ronald Man Yeung Wong, Patrick Shu-Hang Yung","doi":"10.1186/s42836-024-00263-1","DOIUrl":"10.1186/s42836-024-00263-1","url":null,"abstract":"<p><strong>Background: </strong>This study introduced an Augmented Reality (AR) navigation system to address limitations in conventional high tibial osteotomy (HTO). The objective was to enhance precision and efficiency in HTO procedures, overcoming challenges such as inconsistent postoperative alignment and potential neurovascular damage.</p><p><strong>Methods: </strong>The AR-MR (Mixed Reality) navigation system, comprising HoloLens, Unity Engine, and Vuforia software, was employed for pre-clinical trials using tibial sawbone models. CT images generated 3D anatomical models, projected via HoloLens, allowing surgeons to interact through intuitive hand gestures. The critical procedure of target tracking, essential for aligning virtual and real objects, was facilitated by Vuforia's feature detection algorithm.</p><p><strong>Results: </strong>In trials, the AR-MR system demonstrated significant reductions in both preoperative planning and intraoperative times compared to conventional navigation and metal 3D-printed surgical guides. The AR system, while exhibiting lower accuracy, exhibited efficiency, making it a promising option for HTO procedures. The preoperative planning time for the AR system was notably shorter (4 min) compared to conventional navigation (30.5 min) and metal guides (75.5 min). Intraoperative time for AR lasted 8.5 min, considerably faster than that of conventional navigation (31.5 min) and metal guides (10.5 min).</p><p><strong>Conclusions: </strong>The AR navigation system presents a transformative approach to HTO, offering a trade-off between accuracy and efficiency. Ongoing improvements, such as the incorporation of two-stage registration and pointing devices, could further enhance precision. While the system may be less accurate, its efficiency renders it a potential breakthrough in orthopedic surgery, particularly for reducing unnecessary harm and streamlining surgical procedures.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11295607/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141876732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performing region-specific tasks does not improve lower extremity patient-reported outcome scores.","authors":"Moritz J Sharabianlou Korth, Wade A Banta, Prerna Arora, Robin N Kamal, Derek F Amanatullah","doi":"10.1186/s42836-024-00261-3","DOIUrl":"10.1186/s42836-024-00261-3","url":null,"abstract":"<p><strong>Background: </strong>Patient-reported outcome measures quantify outcomes from patients' perspective with validated instruments. QuickDASH (Quick Disability of Arm, Shoulder and Hand, an upper extremity PROM) scores improve after completing instrument tasks, suggesting patient-reported outcome results can be modified. We hypothesized that performing lower extremity tasks on the knee injury and osteoarthritis outcome score for joint reconstruction (KOOS-JR) and hip disability and osteoarthritis outcome score for joint reconstruction (HOOS-JR) instruments would similarly improve the scores.</p><p><strong>Methods: </strong>Forty seven hip and 62 knee osteoarthritis patients presenting to a suburban academic center outpatient osteoarthritis and joint replacement clinic were enrolled and randomized to an intervention or a control group. Inclusion criteria were age over 18 years and English competency. Patients completed a HOOS-JR or KOOS-JR instrument, completed tasks similar to those of the instrument (intervention) or the QuickDASH (control), and then repeated instruments again. Paired and unpaired t-tests were used to compare the intervention and control group scores before and after tasks.</p><p><strong>Results: </strong>There was no significant difference in total or individual scores after task completion compared to baseline in either the HOOS-JR or the KOOS-JR groups. There was no significant difference in the scores between the intervention or control groups.</p><p><strong>Conclusions: </strong>Disability may be less modifiable in the lower extremity than in the upper extremity, perhaps because upper extremity activities are more easily compensated by the contralateral limb, or because lower extremity activities are more frequent. Thorough evaluation of factors influencing patient-reported outcome measures is necessary before their extensive application to quality control and reimbursement models.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11227694/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141545535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inclinometer use in primary total hip arthroplasty does not improve acetabular component positioning: a non-randomized control trial.","authors":"Kyle Goldstein, Wyatt Tyndall, Michaela E Nickol, Johannes M van der Merwe","doi":"10.1186/s42836-024-00258-y","DOIUrl":"10.1186/s42836-024-00258-y","url":null,"abstract":"<p><strong>Introduction: </strong>Total hip arthroplasty (THA) is a common surgical procedure that aims to relieve pain, improve function, and increase mobility in patients with hip joint pathology. One of the most challenging aspects of THA is to determine the correct angle of the acetabular component's placement. Intraoperative inclinometers have emerged as a promising tool to obtain accurate measurements of the acetabular component's inclination. The primary objective of this study was to evaluate the accuracy and efficacy of using intraoperative inclinometers for THA.</p><p><strong>Methods: </strong>This non-randomized control trial evaluated patients undergoing primary THA. Patients in the inclinometer group had an inclinometer used intraoperatively to measure acetabular component inclination, and patients in the control group had no inclinometer. Inclination and anteversion of the acetabular component were measured on postoperative radiographs.</p><p><strong>Results: </strong>A total of 223 patients were included in the study. The mean inclination angle of the acetabular cup was significantly higher in the inclinometer group (43.9° vs. 41.5°, P < 0.001). This difference was not clinically significant. There was no significant difference in anteversion. There were no significant differences in the number of patients within the safe zones for inclination or anteversion, or in the number of patients experiencing a dislocation. No correlation was found between inclinometer measurement and measured acetabular component inclination. Inclinometer use and body mass index (BMI) were the sole statistically significant factors in determining acetabular component inclination.</p><p><strong>Conclusions: </strong>This study indicated no current benefit to inclinometer use during primary THA, as measured by inclination, anteversion, and dislocation rate. However, this might be confounded by subtle variations in patient positioning, which may be a strong area of study in the future.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11229020/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141535892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of short-term clinical results between modified kinematically-aligned and guided motion bicruciate stabilized total knee arthroplasty.","authors":"Kensuke Anjiki, Naoki Nakano, Kazunari Ishida, Koji Takayama, Masahiro Fujita, Tomoyuki Kamenaga, Masanori Tsubosaka, Yuichi Kuroda, Shinya Hayashi, Ryosuke Kuroda, Tomoyuki Matsumoto","doi":"10.1186/s42836-024-00257-z","DOIUrl":"10.1186/s42836-024-00257-z","url":null,"abstract":"<p><strong>Background: </strong>Both kinematically-aligned (KA) total knee arthroplasty (TKA) and bicruciate stabilized (BCS) TKA aim to reproduce the physiological knee kinematics. In this study, we compared the femoro-tibial component rotational mismatch between patients who underwent modified KA-TKA and those who received guided-motion BCS-TKA, and its influence on the clinical outcomes.</p><p><strong>Methods: </strong>In this retrospective study, 77 consecutive patients were included and divided into two groups: subjects who underwent modified KA-TKA with Persona (KA Group; n = 42) and those who received BCS-TKA with JOURNEY II (BCS group; n = 35). Range of motion, the 2011 Knee Society Score (KSS), the rotational alignment of the femoral and tibial components, and the correlations between the rotational mismatch and the 2011 KSS subscales were examined.</p><p><strong>Results: </strong>The postoperative objective knee indicators (P = 0.0157), patient satisfaction (P = 0.0039) and functional activity scores (P = 0.0013) in the KA group were significantly superior to those in the BCS group 1 year postoperatively. There was no significant difference between the two groups observed in the rotational mismatch. In the BCS group, significant negative correlations were identified between the rotational mismatch and objective indicators, patient satisfaction, and functional activity scores but not in the KA group.</p><p><strong>Conclusions: </strong>The short-term clinical results following KA-TKA showed superior objective knee indicators, patient satisfaction and functional activity scores. A negative correlation was observed between component rotational mismatch and the 2011 KSS subscales in the BCS group, compared to no relationship found between the two in the KA group. These findings suggested that KA-TKA has a relatively higher tolerance for rotational mismatch than BCS-TKA.</p>","PeriodicalId":52831,"journal":{"name":"Arthroplasty","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11223350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141499639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}