Prosthetic Alignment and Clinical Outcomes of Navigation-Assisted Unicompartmental Knee Arthroplasty by an Experienced Surgeon Compared With Inexperienced Surgeons

Inui, Hiroshi; Yamagami, Ryota; Kono, Kenichi; Kawaguchi, Kohei; Taketomi, Shuji; Tanaka, Sakae

doi:10.1016/j.arth.2021.02.053

Cited by 6 publications

(6 citation statements)

References 28 publications

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“…Exclusion criteria are as follows: (1) with significant resting pain, the presence of moderate or more softening of the patellofemoral joint, and exposed sclerotic subchondral bone; (2) the lateral compartment with severe damage to the meniscus and anterior cruciate ligament, with diseases such as gout or rheumatoid arthritis; (3) the degree of knee flexion contracture, those who are still greater than 15 °after passive correction, medial collateral ligament instability, or those who show laxity of more than 2 mm, HT0 surgery, and those who are more active and weigh more than 100 kg; (4) history of previous knee trauma and surgery on the affected side; (5) patients with major organ dysfunction; (6) diseases of the hematologic system and immune dysfunction; (7) unable to cooperate with the research, lost to follow-up or withdrew; and (8) concomitant mental illness.…”

Section: Inclusion and Exclusionmentioning

confidence: 99%

“…Still, the clinical trial found that this unicondylar prosthesis often leads to dislocation of the prosthesis due to the high mobility. With the further development of prosthetic materials and devices, unicondylar replacement surgery has also progressed more significantly [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The need to actively encourage patients to move the affected limb actively in bed and get out of bed early after the drainage tube is removed after surgery are beneficial to prevent the formation of lower extremity deep vein thrombosis [27]. There are many risk factors for unicondylar knee replacement infection, usually the patient's own reasons such as the patient's recent history of intra-articular injections and punctures, the presence of diabetes, long-term hormone use or the presence of destructive autoimmune diseases, and septic infections in other parts of the body such as teeth and skin [7]. Intraoperative surgery that violates the principle of sterility can lead to bacterial invasion.…”

mentioning

confidence: 99%

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Safety and Efficacy of Unicondylar Knee Prosthesis Treatment for Unicompartmental Osteoarthritis of the Knee Joint

Zhang

2022

Computational and Mathematical Methods in Medicine

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Background. Knee osteoarthritis (KOA) is a chronic disease that seriously endangers the health of the elderly. Choosing appropriate surgery for knee osteoarthritis patients is especially important. Objective. To investigate the safety and efficacy of unicondylar knee prosthesis treatment for unicompartmental osteoarthritis of the knee. Materials and Methods. One hundred patients with unicondylar osteoarthritis of the knee treated in our hospital from June 2019 to June 2021 were selected as retrospective study subjects and were divided into 50 cases each in the comparison group and the observation group according to the different surgical methods. Among them, the comparison group was treated with unicondylar knee arthroplasty (UKA), and the observation group was treated with unicondylar knee prosthesis replacement, and the differences in AKS score, knee flexion angle, tibial angle orthosis, joint mobility, and postoperative recovery were compared between the two groups. Results. The AKS score and knee flexion angle score of the observation group were higher than those of the comparison group after surgery. However, the tibial angle orthopedic score of the observation group was significantly lower than that of the comparison group after surgery for comparison, and the VAS score of the observation group was lower than that of the comparison group. However, the Lysholm score of the observation group was higher than that of the control group after surgery ( P < 0.05 ). The complication rate of patients in the observation group was significantly lower than that of the comparison group, and the HSS score, VAS score, and knee mobility (ROM) of the two groups were statistically significant ( P < 0.05 ) when compared at 7 d after surgery and 6 months after surgery. Conclusion. The clinical efficacy of unicondylar knee prosthesis replacement for osteoarthritis of the knee is better than that of unicondylar knee arthroplasty (UKA) treatment.

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Section: Inclusion and Exclusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Safety and Efficacy of Unicondylar Knee Prosthesis Treatment for Unicompartmental Osteoarthritis of the Knee Joint

Zhang

2022

Computational and Mathematical Methods in Medicine

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“…Malalignment of the lower limb following UKA is associated with a poorer clinical outcome 25 . Since no ligament release is performed in UKA, a precise osteotomy could result in preservation of the appropriate ligament balance.…”

Section: Discussionmentioning

confidence: 99%

Cruciate ligament force of knees following mobile-bearing unicompartmental knee arthroplasty is larger than the preoperative value

Kono

Inui

Tomita

et al. 2021

Sci Rep

Self Cite

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We analyzed the implantation effects on cruciate ligament force in unicompartmental knee arthroplasty (UKA) and determined whether kinematics is associated with the cruciate ligament force. We examined 16 patients (17 knees) undergoing medial UKA. Under fluoroscopy, each participant performed a deep knee bend before and after UKA. A two-dimensional/three-dimensional registration technique was employed to measure tibiofemoral kinematics. Forces in the anteromedial and posterolateral bundles of both the anterior cruciate ligament (aACL and pACL) and the anterolateral and posteromedial bundles of the posterior cruciate ligament (aPCL and pPCL) during knee flexion were analyzed pre- and post-UKA. Correlations between changes in kinematics and ligament forces post-UKA were also analyzed. Preoperatively, the aACL forces were highly correlated with anteroposterior (AP) translation of the lateral condyles (Correlation coefficient [r] = 0.59). The pPCL forces were highly correlated with the varus–valgus angulation (r = − 0.57). However, postoperatively, the PCL forces in both bundles were highly correlated with the AP translation of the medial femoral condyle (aPCL: r = 0.62, pPCL: r = 0.60). The ACL and PCL forces of the knees post-UKA were larger than those of the knees pre-UKA. Kinematic changes were significantly correlated with the cruciate ligament force changes.

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“…Different strategies, such as tactile methods, the balanced gap technique, and the declination evaluation method, have been proposed to assess soft tissue balance. [15][16][17][18][19][20][21] These methods allow for some degree of soft tissue assessment to regulate homeostasis. However, the traditional methods of adjusting soft tissue balance can only be assessed qualitatively, and the degree of soft tissue balance is difficult to evaluate quantitatively, which poses a great risk and uncertainty for TKA.…”

Section: Introductionmentioning

confidence: 99%

Novel Force Measurement System for Soft Tissue Balance in Total Knee Arthroplasty Based on Flexible Pressure Sensor Arrays

Wang

Lin

et al. 2022

Advanced Intelligent Systems

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Total knee arthroplasty (TKA) is a common treatment for terminal knee arthropathy. Soft tissue balance is one of the key factors affecting the success rate of TKA. However, current measurement systems still face great challenges in terms of accuracy and timeliness. Herein, a novel force measurement system based on a smart spacer is proposed to measure soft tissue balance in a timely and accurate manner. The smart spacer is designed according to the simulated results, where six flexible pressure sensors with a high sensitivity of 99.56 N−1 and a wide detection range of 50 N are attached to the spacer base to directly detect the soft tissue balance force. Moreover, a soft tissue balance measurement system is constructed, which can measure the force at different positions, such as the extension position (0°), the middle position (45°), and the flexion position (90°), and display them on the computer in a timely manner. This novel real‐time knee soft tissue balance measurement system provides a way for surgeons or knee joint replacement surgery robots to accurately evaluate soft tissue balance and paves the way for improving the success rate of TKA and the patient's postoperative rehabilitation.

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Prosthetic Alignment and Clinical Outcomes of Navigation-Assisted Unicompartmental Knee Arthroplasty by an Experienced Surgeon Compared With Inexperienced Surgeons

Cited by 6 publications

References 28 publications

Safety and Efficacy of Unicondylar Knee Prosthesis Treatment for Unicompartmental Osteoarthritis of the Knee Joint

Safety and Efficacy of Unicondylar Knee Prosthesis Treatment for Unicompartmental Osteoarthritis of the Knee Joint

Cruciate ligament force of knees following mobile-bearing unicompartmental knee arthroplasty is larger than the preoperative value

Novel Force Measurement System for Soft Tissue Balance in Total Knee Arthroplasty Based on Flexible Pressure Sensor Arrays

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