In vivo comparisons of patellofemoral kinematics before and after ADVANCE® Medial-Pivot total knee arthroplasty

Ishida, Kazunari; Matsumoto, Tomoyuki; Tsumura, Nobuhiro; Chinzei, Nobuaki; Kitagawa, A.; Kubo, Seiji; Chin, Takaaki; Iguchi, Tetsuhiro; Akisue, Toshihiro; Nishida, Kotaro; Kurosaka, Masahiro; Kuroda, Ryosuke

doi:10.1007/s00264-012-1634-2

Cited by 17 publications

(16 citation statements)

References 24 publications

(39 reference statements)

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“…The MP motion can reduce the patellofemoral pressure, reproduce normal tibiofemoral kinematics, decrease risk of patellofemoral complications, such as anterior knee pain. [ 27 ] Anderson et al [ 10 ] reported patients undergoing surgery with MP prosthesis had significantly lower rates of patellofemoral complications compared with patients who underwent surgery with PS prosthesis, while Ishida et al [ 28 ] reported the influence of MP prosthesis on the clinical outcome of patellofemoral joint after TKA is still unclear. In our study, we only evaluated patellar tilt angle, and there was not any investigation of the clinical rating system and the other radiographic parameters for patellofemoral joint.…”

Section: Discussionmentioning

confidence: 99%

Comparison of clinical and radiographic results between total knee arthroplasties using medial pivot and posterior-stabilized prosthesis

Sun¹,

Gao²,

Sun³

et al. 2021

Medicine

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Objective: To evaluate the clinical and radiographic outcomes of total knee arthroplasties (TKA) between using medial-pivot (MP) and posterior-stabilized (PS) prosthesis. Does MP prosthesis and PS prosthesis influence the clinical results of a TKA? Methods: An electronic literature search of PubMed Medline and the Cochrane Library was performed from inception to October 1, 2019. A meta-analysis to compare postoperative outcomes of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, Knee Society Score (KSS), range of motion (ROM), complications, and radiographic results between MP and PS prosthesis were conducted. Results: Seven eligible studies involving 934 adult patients (MP group, n = 461; PS group, n = 473) were identified for analysis. This study showed no significant difference between the 2 groups in the WOMAC scores, KSS, ROM, and complications ( P > .05). The differences of the femorotibial angle, position of implant, and patellar tilt were also not significant between the 2 groups ( P > .05). Conclusion: The present meta-analysis has shown that patients with the MP prosthesis have similar clinical results as patients with PS prosthesis. Furthermore, the radiographic results, especially patella tilt angle, were also similar between the 2 groups. Therefore, surgeons should be aware that the types of prostheses are not a decisive factor to ensure successful operation.

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Section: Discussionmentioning

confidence: 99%

Comparison of clinical and radiographic results between total knee arthroplasties using medial pivot and posterior-stabilized prosthesis

Sun¹,

Gao²,

Sun³

et al. 2021

Medicine

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“…Recently, medial pivoting knee motion has also been adopted in several knee replacement designs that are aimed to reproduce anatomic knee joint motion patterns (Chinzei et al, 2014; Ishida et al, 2012; Morra et al, 2008; Pritchett, 2011; Schmidt et al, 2003; Schmidt et al, 2014). However, our data showed that both the medial and lateral cartilage contacts are a convex femur to a convex tibia contact in sagittal plane.…”

Section: Discussionmentioning

confidence: 99%

Analysis of in-vivo articular cartilage contact surface of the knee during a step-up motion

Yin¹,

Kernkamp

et al. 2017

Clinical Biomechanics

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Background Numerous studies have reported on the tibiofemoral articular cartilage contact kinematics, however, no data has been reported on the articular cartilage geometry at the contact area. This study investigated the in-vivo tibiofemoral articular cartilage contact biomechanics during a dynamic step-up motion. Methods Ten healthy subjects were imaged using a validated magnetic resonance and dual fluoroscopic imaging technique during a step-up motion. Three-dimensional bone and cartilage models were constructed from the magnetic resonance images. The cartilage contact along the motion path was analyzed, including cartilage contact location and the cartilage surface geometry at the contact area. Findings The cartilage contact excursions were similar in anteroposterior and mediolateral directions in the medial and lateral compartments of the tibia plateau (p>0.05). Both medial and lateral compartments were under convex (femur) to convex (tibia) contact in the sagittal plane, and under convex (femur) to concave (tibia) contact in the coronal plane. The medial tibial articular contact radius was larger than the lateral side in the sagittal plane along the motion path (P<0.001). Interpretations These data revealed that both the medial and lateral compartments of the knee experienced convex (femur) to convex (tibia) contact in sagittal plane (or anteroposterior direction) during the dynamic step-up motion. These data could provide new insight into the in-vivo cartilage contact biomechanics research, and may provide guidelines for development of anatomical total knee arthroplasties that are aimed to reproduce normal knee joint kinematics

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“…The long-term survival rate of prostheses is always the gold standard to measure the success or failure of knee replacement surgery. Previous studies suggested that MP prostheses can provide better articulating joints while reducing the contact stress load on the fixed surface, which should reduce the risk for loosening [20,21]. However, an increasing number of authors have confirmed that the wear of this type of joint is affected by many mechanical and biological factors, so the long-term life of the prosthesis cannot be measured by a single factor [22].…”

Section: Discussionmentioning

confidence: 99%

Comparison of Clinical Outcomes Between Total Knee Arthroplasties Using Medial-Pivot and Posterior-Stabilized Prosthesis: Minimum 8-year Follow-up Results in Chinese population

Gao¹,

Guo²,

Zhang³

et al. 2020

Preprint

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Objective To compare the clinical outcomes of Medial-pivot and Posterior-stablized total knee arthroplasty during 8 years follow-up. Methods 109 patients with osteoarthritis who underwent primary total knee arthroplasty were conducted and divided into two groups according to the choice of prosthesis,49 in the Medial-pivot(MP) group and 60 in the Postirior-stabilized(PS) group.There were no statistical differences in age,gender,BMI,operative side and operation time between the two groups (P>0.05).The same protocol of perioperative treatment was adopted in both groups. Comparison of clinical outcome and survival rates were acquired through minimum 8 years follow-up. Results The prosthesis survival rate andthe excellent and good rate of MP group were 93.9% and 88.9% during average 8.3 years follow-up period,versus the prosthesis survival rate and the excellent or good rate of PS group were 93.3% and 86.7% during average 8.4 years follow-up period.There were no statistical diferences in survival rate,excellent and good rate and radiolucency of weight-bearing areas between the two groups ( P >0.05). There were no statistical differences in range of motion,KSS score and WOMAC index between the two groups preoperatively (P>0.05).The range of motion at all follow-up time points and KSS score at 6 months postoperatively of PS group were superior than those of MP group ( P <0.05),while the WOMAC index at 8 years postoperatively and Kujala scores at 1year and 8 years postoperatively of PS group were better than those of MP group( P <0.05). Conclusion Either medial-pivot or post-stabilized total knee arthroplasty could obtain excellent or good mid-term clinical result. Although with less range of motion, the patients using MP prosthesis could obtain better results in bone loss, performance of the patellofemoral joint and mid-term satisfaction. However, the use of MP prosthesis required more professional and precise technology and it should be cautious when using for knees with severe valgus deformation.

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In vivo comparisons of patellofemoral kinematics before and after ADVANCE® Medial-Pivot total knee arthroplasty

Cited by 17 publications

References 24 publications

Comparison of clinical and radiographic results between total knee arthroplasties using medial pivot and posterior-stabilized prosthesis

Comparison of clinical and radiographic results between total knee arthroplasties using medial pivot and posterior-stabilized prosthesis

Analysis of in-vivo articular cartilage contact surface of the knee during a step-up motion

Comparison of Clinical Outcomes Between Total Knee Arthroplasties Using Medial-Pivot and Posterior-Stabilized Prosthesis: Minimum 8-year Follow-up Results in Chinese population

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