Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle

Ranuša, Matúš; Wimmer, Markus A.; Fullam, Spencer; Vrbka, Martin; Křupka, Ivan

doi:10.3390/lubricants9040036

Cited by 8 publications

(8 citation statements)

References 39 publications

(50 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their study examined the relationship between the coefficient of friction (CoF) during a gait cycle and its association with kinematics (slide-roll ratio), applied load, and relative velocity. As a result of this study, the coefficient of friction fluctuates with the change in load [12].…”

Section: Literature Reviewmentioning

confidence: 70%

Analysis of Human Gait Cycle With Body Equilibrium Based on Leg Orientation

et al. 2022

View full text Add to dashboard Cite

Gait analysis identifies the posture during movement in order to provide the correct actions for a normal gait. A person's gait may differ from others and can be recognized by specific patterns. Healthy individuals exhibit normal gait patterns, while lower limb amputees exhibit abnormal gait patterns. To better understand the pitfalls of gait, it is imperative to develop systems capable of capturing the gait patterns of healthy individuals. The main objective of this research was to introduce a new concept in gait analysis by computing the static and dynamic equilibrium in a real-world environment. A relationship was also presented among the parameters stated as static & dynamic equilibrium, speed, and body states. A sensing unit was installed on the designed metal-based leg mounting assembly on the lateral side of the leg. An algorithm was proposed based on two variables: the position of the leg in space and the angle of the knee joint measured by an IMU sensor and a rotary encoder. It was acceptable to satisfy the static conditions when the body was in a fixed position and orientation, whether lying down or standing. While walking and running, the orientation is determined by the position and knee angle variables, which fulfill the dynamic condition. High speed reveals a rapid change in orientation, while slow speed reveals a slow change in orientation. The proposed encoder-based feedback system successfully determined the flexion at 47 • , extension at 153 • , and all seven gait cycle phases were recognized within this range of motion. Body equilibrium facilitates individuals when they are at risk of falling or slipping.INDEX TERMS Gait analysis, IMU sensor, rotary encoder, static and dynamic equilibrium, body orientation.

show abstract

Section: Literature Reviewmentioning

confidence: 70%

Analysis of Human Gait Cycle With Body Equilibrium Based on Leg Orientation

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The results revealed that the value for the coefficient of friction for coated samples ranged between 0 and 0.15. It was also concluded that a decline in friction is due to an increase in load [104].…”

Section: Implant Failure: Friction and Wear Of Biomaterials Surfacementioning

confidence: 99%

“…One of the common causes of implant deterioration is reported as mechanical wear [105]. Knee implant failures result in 3.3% of modifying surgeries due to wear and 24.2% due to mechanical loosening [104]. Hip implants may result in osteolysis and the release of metal ions due to wear and corrosion of biomaterials [106].…”

Section: Implant Failure: Friction and Wear Of Biomaterials Surfacementioning

confidence: 99%

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Sultana

Zare

Luo

et al. 2021

IJMS

View full text Add to dashboard Cite

Decades of intense scientific research investigations clearly suggest that only a subset of a large number of metals, ceramics, polymers, composites, and nanomaterials are suitable as biomaterials for a growing number of biomedical devices and biomedical uses. However, biomaterials are prone to microbial infection due to Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Staphylococcus epidermidis (S. epidermidis), hepatitis, tuberculosis, human immunodeficiency virus (HIV), and many more. Hence, a range of surface engineering strategies are devised in order to achieve desired biocompatibility and antimicrobial performance in situ. Surface engineering strategies are a group of techniques that alter or modify the surface properties of the material in order to obtain a product with desired functionalities. There are two categories of surface engineering methods: conventional surface engineering methods (such as coating, bioactive coating, plasma spray coating, hydrothermal, lithography, shot peening, and electrophoretic deposition) and emerging surface engineering methods (laser treatment, robot laser treatment, electrospinning, electrospray, additive manufacturing, and radio frequency magnetron sputtering technique). Atomic-scale engineering, such as chemical vapor deposition, atomic layer etching, plasma immersion ion deposition, and atomic layer deposition, is a subsection of emerging technology that has demonstrated improved control and flexibility at finer length scales than compared to the conventional methods. With the advancements in technologies and the demand for even better control of biomaterial surfaces, research efforts in recent years are aimed at the atomic scale and molecular scale while incorporating functional agents in order to elicit optimal in situ performance. The functional agents include synthetic materials (monolithic ZnO, quaternary ammonium salts, silver nano-clusters, titanium dioxide, and graphene) and natural materials (chitosan, totarol, botanical extracts, and nisin). This review highlights the various strategies of surface engineering of biomaterial including their functional mechanism, applications, and shortcomings. Additionally, this review article emphasizes atomic scale engineering of biomaterials for fabricating antimicrobial biomaterials and explores their challenges.

show abstract

“…This is usually utilized in elderly patients to treat intracapsular hip fractures. , Bipolar hip hemiarthroplasty is made of 2 components: (1) a femoral stem with a small diameter and (2) a small diameter femoral stem together with a distinct acetabular component made of polyethylene (PE)-lined metal exterior. , Two elements of the bipolar hip implants join together as an articulating unit with the outermost diameter of the acetabular cap matching the acetabular width, while the internal surface of the acetabular cap articulates with the smaller head components for the femur. , Micromotion can occur between the femoral component and the acetabular and also at the articulation between the external surface of the acetabular component and the native joint tissue . Similarly, the THA is made of 2 components: (1) a stemmed femoral part with a femoral head and (2) an acetabular part. , For knee procedures, unicompartmental arthroplasty is frequently utilized for secluded unicompartmental arthritis, especially in the medial section in which a femoral condyle and the tibial articulation are resurfaced. , Total knee arthroplasty (TKA) procedures involve resurfacing the tibiofemoral surfaces and the articulation surfaces of the patella using bearing surfaces made of metal and PE materials. , …”

Section: Introductionmentioning

confidence: 99%

“…Under appropriate conditions, THA or TKA is deemed feasible for any patient after the age of bone maturity . Proper patient selection has yielded excellent results in 95% of patients. ,, The majority of recent hip replacement implants are made of modular systems, consisting of the femoral stem, femoral head, acetabular shell, and acetabular liner which are separate components. , Among the advantages of this newer system is that it allows greater flexibility in customizing, sizing, and fitting; however, it also comes with a disadvantage as components glide at the interfaces. − …”

Section: Introductionmentioning

confidence: 99%

Corrosion of Metals During Use in Arthroplasty

Ude

Dzidotor

Iloeje

et al. 2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Arthroplasty implants can undergo corrosion at the modular components, trunnion, and hinges, owing to implant material makeup, micromotion, and interaction with body fluid. In this review, various mechanisms of corrosion in arthroplasty were explored with suggestions on means of improvement. We identified 10 methods including pitting, crevice, mechanically assisted crevice corrosion, fretting, fretting initiated crevice corrosion, mechanically assisted taper corrosion, galvanic corrosion, stress/ tension, fatigue corrosion, and inflammatory cell induced corrosion. The position of implants on the galvanic series, and their ability to maintain passivation contribute to their longevity in service. Due to the relative motion of arthroplastic components, bio-tribocorrosion may disrupt passive oxide films, and pitting is initiated at interfaces. Thus, corrosion in arthroplasty as an electrochemical phenomenon mainly starts on one spot and progresses in 3 steps: (1) the oxidative dissolution of metal from implant surfaces into the aqueous active environment, releasing cations, (2) the attraction of electrons to the opposite charge created at another point of the implant surface, producing current flow, and (3) the formation of oxides of metal and metal hydroxides deposited as rust at the surface of the implant. Recent innovations in material manufacturing continue to improve the efficiency of arthroplasty; however, the component parts remain susceptible to biotribocorrosion. Thus, a complete eradication of corrosion in arthroplasty would require futuristic materials with improvement in recent materials and designs, derived from knowledge of existing retrieved implants, and strategies to provide overall surface finishes that protect against bio-tribocorrosion.

show abstract

Analysis of Friction in Total Knee Prosthesis during a Standard Gait Cycle

Cited by 8 publications

References 39 publications

Analysis of Human Gait Cycle With Body Equilibrium Based on Leg Orientation

Analysis of Human Gait Cycle With Body Equilibrium Based on Leg Orientation

Surface Engineering Strategies to Enhance the In Situ Performance of Medical Devices Including Atomic Scale Engineering

Corrosion of Metals During Use in Arthroplasty

Contact Info

Product

Resources

About