Damage of the Bone-Cement Interface in Finite Element Analyses of Cemented Orthopaedic Implants

Abstract

In orthopedic surgery and particularly in total hip arthroplasty, fixation of femoral implant is generally made by the surgical cement. Bone–cement interface has long been implicated in failure of cemented total hip replacement (THA), it is actually a critical site that affect the long-term stability and survival of prosthetic implants after implantation. The main purpose of this study is to investigate the effect of cement penetration into the bone on damage scenario at the interface. Previously most researchers have been performed to study damage accumulation in the cement mantle for different amount of cement penetration. In this work, bone–cement interface integrity has been studied for different mechanical properties. Cohesive traction separation law is used to detect contact damage between cement and bone. Results showed that a larger debonded area was predicted proximally and distally. Adhesion between bone and cement is affected mainly by cement penetration into the bone. Higher cement penetration into the bone leads to a good load transfer. A lower strength of the bone–cement interface due to a lower mechanical property results in faster interface damage. So we advise surgeons to well perpetrate the bone for long-term durability of cemented THA.

Copper Containing Glass-Based Bone Adhesives for Orthopaedic Applications: Glass Characterization and Advanced Mechanical Evaluation

“…Although the clinical use and availability of various types of PMMA bone cements, they are not without major drawbacks [6,13]. The primary concern associated with PMMA bone cement is the lack of any chemical bonding to host bone tissue which relies primarily on mechanical interlocking through penetration of cement in the irregularities in the surface of bone, acting more as cement rather than adhesive [14,15]. Lack of interfacial chemical bonding or inadequate adhesion leads to aseptic loosening of implant, causing failure, and eventually requires revision surgeries [15].…”

“…The primary concern associated with PMMA bone cement is the lack of any chemical bonding to host bone tissue which relies primarily on mechanical interlocking through penetration of cement in the irregularities in the surface of bone, acting more as cement rather than adhesive [14,15]. Lack of interfacial chemical bonding or inadequate adhesion leads to aseptic loosening of implant, causing failure, and eventually requires revision surgeries [15]. The ideal bone adhesive should possess strong interfacial adhesion, quick and non-exothermic setting reaction, minimum swelling and volume shrinkage [1].…”

“…Bone adhesives spread over the entire surface, evenly distribute, and transmit the physical forces throughout the contact area and effectively minimize stress localization [26]. They could also resolve certain drawbacks of metallic implants such as stress shielding, which is correlated with relatively high stiffness of metallic implants when compared to the natural bone material [15]. Natural bone tissue has a unique mechanical property and exhibits viscoelastic and rate-dependent failure behaviour.…”

Experimental and Numerical Failure Analysis of Adhesive Joint of Glass Fiber Reinforced Polymer Composite

“…A curiosity that CZM can not only be used to model failure of adhesive joints or composite delamination but, e.g., also to model the damage of the bone-cement interface of orthopedic implants [18].…”

Experimental and numerical static failure analyses of total hip replacement interfaces

“…Norman et al 27 found that the roughness of the implant surface caused creep-induced collapse, so they compared different contact conditions. Bousnane et al 28 used interfacial strength, which changes with cement–bone bonding, as a damage criterion. The interfacial strength values were taken from the study of Mann et al It should be noted that this FE analysis was limited to the cement–bone interface.…”