Effect of Patellar Thickness on Knee Flexion in Total Knee Arthroplasty: A Biomechanical and Experimental Study

Abolghasemian, Mansour; Samiezadeh, Saeid; Sternheim, Amir; Bougherara, Habiba; Barnes, C. Lowry; Backstein, David

doi:10.1016/j.arth.2013.04.026

Cited by 38 publications

(36 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In previous study, the prevalence of AKP in non-resurfacing TKR was 20.2% and most of the pain emerged within fi rst fi ve years after TKR [13]. Some case series in non-resurfacing TKR, the prevalence of AKP was up to 60% [14].…”

Section: Discussionmentioning

confidence: 92%

Anterior Knee Pain reduction by patellar thickness reduction in Total Knee Replacement

Kantayaporn¹,

Puempanich²

2019

Arch Gerontol Geriatr Res

View full text Add to dashboard Cite

Background: Anterior knee pain(AKP) was a common complication after total knee replacement(TKR). This condition can be occurred in both patellar resurfacing and non-resurfacing technique. An increase in patellar thickness 1 mm or more postoperatively was associated with lower gain in WOMAC score. Objective:To compare AKP and up and down stair function after patellar thickness reduction and patellar non-resurfacing TKR. Materials and Methods:A retrospective comparative study of was designed. All patients who had been TKR since March 2015 and December 2017 were included. The questionnaires of 2 easy questions about pain over patellar region and walking up-down stairs performance were sent to all patients by letters. The patient's characteristics were collected from inpatient medical records. AKP was defi ned as pain scale 3-10. Data were analyzed by t-test and fi sher's exact using STATA 12 (demonstrated version). P-value < 0.05 was considered signifi cant.Results: 60 questionnaires were sent and 49 evaluations were received. 26 patients were patellar non-resurfacing(PNR) group and 23 patients was patellar thickness reduction(PTR) group. Duration after TKR to questionnaires response were 12-43 months. The prevalence of AKP and knee function of up and down stair were not signifi cantly different in both groups. The severity of AKP in PNR group (5.1+1.2) was signifi cant (p-value < 0.01) higher than PTR group (3.4+0.8).Conclusion: Patellar thickness reduction in total knee replacement could reduce the severity of anterior knee pain compared to patellar non-resurfacing technique.

show abstract

Section: Discussionmentioning

confidence: 92%

Anterior Knee Pain reduction by patellar thickness reduction in Total Knee Replacement

Kantayaporn¹,

Puempanich²

2019

Arch Gerontol Geriatr Res

View full text Add to dashboard Cite

show abstract

“…The design of this total knee system utilizes a single radius implant geometry with an instrument platform which aims to maintain the medial joint-line throughout range of motion in order to optimize MCL isometry post TKA. In addition, the patellofemoral track in this design has a lower profile and an early lateralized anatomic patellar track compared with traditional knee systems, which reduces constraint on the patellofemoral mechanism and therefore minimizes anterior knee pain [16]. The goal of this TKR system is to maintain balance throughout the range of motion, resulting in improved patient outcomes.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Functional Outcomes of Total Knee Arthroplasty Using Two Different Single Radius Implants

Pourmoghaddam¹,

Dettmer²,

Malanka³

et al. 2016

ReconRev

View full text Add to dashboard Cite

Total knee arthroplasty is used as the treatment plan for patients with end-stage osteoarthrosis associated with severely affected function. Although TKA has been used for many years, some patients have reported overall dissatisfaction regarding the outcome. This may be due to the complexity of the joint design. In recent years, the concept of single-radius knee prosthetics is gaining more popularity as many studies have discussed biomechanical and clinical benefits of such design compared to traditionally used multi-radius implants. In this study, we report the outcome of 78 patients who were treated by TKA utilizing a relatively new single-radius implant, Unity. Results showed that all subjects reported good outcomes as expressed by significant improvement in their Knee Injury and Osteoarthritis Outcome Scores at 1-year post-operative. The symptom, pain, and ADL subscores demonstrated significant improvement in patients with scores twice the pre-operative value, while the average improvement in sport and quality of life subscores showed even greater improvement with scores three times the pre-operative value.

show abstract

“…Incorrect patellar preparation and poor positioning of the patellar component can lead to mal-tracking and decreased knee flexion. Increased patellar construct thickness exponentially decreased knee flexion in both biomechanical and computer models [36].…”

Section: Determinants Of Rommentioning

confidence: 99%

The high-flexion knee: The myth continues–In affirmation

Borne

Edwards

Barnes

2014

Seminars in Arthroplasty

Self Cite

View full text Add to dashboard Cite

Effect of Patellar Thickness on Knee Flexion in Total Knee Arthroplasty: A Biomechanical and Experimental Study

Cited by 38 publications

References 24 publications

Anterior Knee Pain reduction by patellar thickness reduction in Total Knee Replacement

Anterior Knee Pain reduction by patellar thickness reduction in Total Knee Replacement

Comparison of Functional Outcomes of Total Knee Arthroplasty Using Two Different Single Radius Implants

The high-flexion knee: The myth continues–In affirmation

Contact Info

Product

Resources

About