scholarly journals Safety and Feasibility of a KineSpring Knee System for the Treatment of Osteoarthritis: A Case Series

2015 ◽  
Vol 8 ◽  
pp. CMAMD.S24423 ◽  
Author(s):  
David A. Hayes ◽  
Craig S. Waller ◽  
Chuan Silvia Li ◽  
Christopher Vannabouathong ◽  
Sheila Sprague ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Treatment Option ◽  
Knee Arthroplasty ◽  
Case Series ◽  
Treatment Gap ◽  
Knee Oa ◽  
Total Knee ◽  
Implant System ◽  
Functional Problems ◽  
Viable Treatment

The treatment gap between conservative management and total knee arthroplasty may leave patients with moderate cases of knee osteoarthritis (OA) without an ideal treatment option. The KineSpring® Knee Implant System may be a viable treatment option to fill the treatment gap for patients with knee OA who are not willing or inappropriate candidates for total knee arthroplasty, yet do not demonstrate relief with conservative treatments. This current paper reports a series of patients who received the KineSpring System and were followed for five years. Twelve patients were included in the case series. All 12 patients were diagnosed with symptomatic OA of the medial compartment of the knee. Pain and functional problems associated with OA improved with treatment using the KineSpring System. Furthermore, these improvements were seen over the course of five years. The findings of this study show the KineSpring System as a promising intervention for early-onset OA and warrant further investigation regarding its effectiveness.

scholarly journals Is Total Knee Arthroplasty a Viable Treatment Option in Octogenarians with Advanced Osteoarthritis?

2015 ◽  
Vol 27 (4) ◽  
pp. 221-227 ◽  
Author(s):  
Jai-Gon Seo ◽  
Young-Wan Moon ◽  
Byung-Chul Cho ◽  
Su Cheol Kim ◽  
Young Hoo Ko ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Treatment Option ◽  
Knee Arthroplasty ◽  
Total Knee ◽  
Viable Treatment

scholarly journals Modifiable and Nonmodifiable Predictive Factors Associated with the Outcomes of Total Knee Arthroplasty

Joints ◽  
2019 ◽  
Vol 07 (01) ◽  
pp. 013-018
Author(s):  
Davide E. Bonasia ◽  
Anna Palazzolo ◽  
Umberto Cottino ◽  
Francesco Saccia ◽  
Claudio Mazzola ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Prognostic Factors ◽  
Treatment Option ◽  
Predictive Factors ◽  
Knee Arthroplasty ◽  
Factors Associated ◽  
Modifiable Factors ◽  
Valuable Treatment ◽  
Total Knee ◽  
The Right

AbstractTotal knee arthroplasty (TKA) is a valuable treatment option for advanced osteoarthritis in patients unresponsive to conservative treatments. Despite overall satisfactory results, the rate of unsatisfied patients after TKA remains high, ranging from 5 to 40%. Different modifiable and nonmodifiable prognostic factors associated with TKA outcomes have been described. The correction, whenever possible, of modifiable factors is fundamental in preoperative patients' optimization protocols. Nonmodifiable factors can help in predicting the outcomes and creating the right expectations in the patients undergoing TKA. The goal of this review is to summarize the modifiable and nonmodifiable prognostic factors associated with TKA outcomes.

Difficult Cases in Robotic Arm-Assisted Total Knee Arthroplasty: A Case Series

2017 ◽  
Vol 31 (01) ◽  
pp. 027-037 ◽  
Author(s):  
Robert Marchand ◽  
Anton Khlopas ◽  
Nipun Sodhi ◽  
Caitlin Condrey ◽  
Nicolas Piuzzi ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Case Series ◽  
Valgus Deformity ◽  
Robotic Assisted ◽  
Surgical Technology ◽  
Flexion Contractures ◽  
Total Knee ◽  
Robotic Devices ◽  
Sagittal Deformity

AbstractSagittal deformity of the knee is commonly corrected to neutral biomechanical axis (±3 degrees) during total knee arthroplasty (TKA), which is a widely accepted goal. Recent advances in surgical technology have made it possible to accurately plan and fulfill these goals. One of these is robotic-assisted TKA, which has been noted to help increase accuracy and precision of restoring a neutral mechanical axis. While there are data confirming the ability of robotic devices to better correct knee alignment than the manual technique, there is a lack of data concerning the use of the robotic devices in more complex cases, such as those in patients with severe varus or valgus deformity, as well as in flexion contractures. Therefore, the purpose of this case study is to present three cases in which the robotic-assisted TKA device was used to correct a severe varus and severe valgus deformities. Based on this case series, it should be noted that the robotic device can also help correct severe varus/valgus deformities and flexion contractures.

Quantifying Achievable Levels of Improvement in Knee Joint Biomechanics During Gait After Total Knee Arthroplasty Relative to Osteoarthritis Severity

2020 ◽  
pp. 1-9
Author(s):  
Jereme B. Outerleys ◽  
Michael J. Dunbar ◽  
Glen Richardson ◽  
Cheryl L. Hubley-Kozey ◽  
Janie L. Astephen Wilson
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Frontal Plane ◽  
Knee Adduction Moment ◽  
Patient Specific ◽  
Knee Biomechanics ◽  
Knee Oa ◽  
Joint Biomechanics ◽  
Total Knee

Total knee arthroplasty (TKA) surgery improves knee joint kinematics and kinetics during gait for most patients, but a lack of evidence exists for the level and incidence of improvement that is achieved. The objective of this study was to quantify patient-specific improvements in knee biomechanics relative to osteoarthritis (OA) severity levels. Seventy-two patients underwent 3-dimensional (3D) gait analysis before and 1 year after TKA surgery, as well as 72 asymptomatic adults and 72 with moderate knee OA. A combination of principal component analysis and discriminant analyses were used to categorize knee joint biomechanics for patients before and after surgery relative to asymptomatic, moderate, and severe OA. Post-TKA, 63% were categorized with knee biomechanics consistent with moderate OA, 29% with severe OA, and 8% asymptomatic. The magnitude and pattern of the knee adduction moment and angle (frontal plane features) were the most significant contributors in discriminating between pre-TKA and post-TKA knee biomechanics. Standard of care TKA improves knee biomechanics during gait to levels most consistent with moderate knee OA and predominately targets frontal plane features. These results provide evidence for the level of improvement in knee biomechanics that can be expected following surgery and highlight the biomechanics most targeted by surgery.

scholarly journals Total knee arthroplasty after distal femoral osteotomy: a systematic review and current concepts

SICOT-J ◽  
2020 ◽  
Vol 6 ◽  
pp. 35 ◽  
Author(s):  
Francesco Luceri ◽  
Jacopo Tamini ◽  
Paolo Ferrua ◽  
Damiano Ricci ◽  
Cécile Batailler ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Replacement ◽  
Knee Arthroplasty ◽  
Randomized Clinical Trials ◽  
Case Series ◽  
Femoral Osteotomy ◽  
Long Term Results ◽  
Radiographic Evaluation ◽  
Distal Femoral Osteotomy ◽  
Total Knee

Introduction: Distal Femoral Osteotomy (DFO) is a common procedure for correcting lower limb valgus deformity and lateral compartment overload. Low 20-year survivorship rate was reported with a consequent need for total knee arthroplasty (TKA). This study aims to review literature and to analyse the influence of a previous distal femoral osteotomy on outcomes of patients undergoing TKA. Methods: A systematic literature review was performed in PubMed/Medline and Embase in May 2020. Papers were selected based on the following criteria: patient with a previous distal femoral osteotomy; total knee replacement; Pre- and Postoperative outcomes; surgical outcomes: clinical scores, range of motion, radiographic evaluation and revisions for any cause; case series, retrospective studies, observational studies, open-label studies, randomized clinical trials; systematic reviews and meta-analyses were included to extract primitive studies. Results: 306 articles were found, of which five papers were considered eligible for this review. In every study included, postoperative clinical outcomes (Knee Society Score or Hospital for Special Surgery score) statistically improved from the preoperative. Complications were not uncommon; implant survivorship at the available follow-up seems to be similar to primary TKA, although being too short to draw any conclusions. Conclusions: Limited and highly heterogeneous evidence is currently available on the influence of DFO on outcomes after TKA. Knee replacement improves clinical middle-term outcomes in patients with previous distal femoral osteotomy. In this complex surgery, the use of technical tips and tricks could help surgeons to obtain an accurate knee balancing and better long-term results.

scholarly journals Managing of post-traumatic knee arthritis by total knee arthroplasty: case series of 15 patients and literature review

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Bahaa Ali Kornah ◽  
Hesham Mohamed Safwat ◽  
Said K. Abdel-hameed ◽  
Mohamed Abdel-AAl ◽  
Mohamed Abdelaziz ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Literature Review ◽  
Knee Arthroplasty ◽  
Case Series ◽  
Knee Arthritis ◽  
Total Knee ◽  
Post Traumatic
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