A cadaver-based biomechanical model of acetabulum reaming for surgical virtual reality training simulators

Abstract

Total hip arthroplasty (THA) is a highly successful surgical procedure, but complications remain, including aseptic loosening, early dislocation and misalignment. These may partly be related to lacking training opportunities for novices or those performing THA less frequently. A standardized training setting with realistic haptic feedback for THA does not exist to date. Virtual Reality (VR) may help establish THA training scenarios under standardized settings, morphology and material properties. This work summarizes the development and acquisition of mechanical properties on hip reaming, resulting in a tissue-based material model of the acetabulum for force feedback VR hip reaming simulators. With the given forces and torques occurring during the reaming, Cubic Hermite Spline interpolation seemed the most suitable approach to represent the nonlinear force–displacement behavior of the acetabular tissues over Cubic Splines. Further, Cubic Hermite Splines allowed for a rapid force feedback computation below the 1 ms hallmark. The Cubic Hermite Spline material model was implemented using a three-dimensional-sphere packing model. The resulting forces were delivered via a human–machine-interaction certified KUKA iiwa robotic arm used as a force feedback device. Consequently, this novel approach presents a concept to obtain mechanical data from high-force surgical interventions as baseline data for material models and biomechanical considerations; this will allow THA surgeons to train with a variety of machining hardness levels of acetabula for haptic VR acetabulum reaming.

A systematic review of immersive virtual reality for industrial skills training

“…Three employed the 3D Systems Geomagic Touch [68,87,88], one used the Geomagic Touch X [89] and one used the LapMentor III surgical platform [45]. One publication customised a KUKA industrial robot with haptic feedback for surgical training [90], while three built novel haptic devices [52,91,92]. Lastly, one publication adapted an existing haptic device but did not describe it [93].…”

“…Moreover, as the technology is not limited by portability/wearability capabilities, they can rely upon designs aimed at providing reliable and accurate performance, making them quite adaptable for the above-mentioned healthcare cases. In the case of the applicability of haptics in remote training use cases, it is evident that challenges and limitations exist; for example, the utilisation of grounded haptic devices in surgical training like the Kuka industrial robot arm in Pelliccia et al [90] or the Lapmentor III platform [45] might be challenging to be incorporated into a remote scheme for training, but as the technology matures, other simulation techniques like haptic gloves that were observed in Butt et al [67] can aid to partially or fully transfer the IVR applications into a remote training scheme.…”

Teaching Human Anatomy: A Comparison of In-Person and Online Learning Programs

“…The use of high-quality online simulations may ultimately alleviate some of the expenses and concerns regarding the use of human cadaver specimens at some schools. The use of cadavers as a teaching method may prevent some very bright and capable students from considering the healthcare field [9]. Reference [3] found that the use of three-dimensional virtual models may be more effective than traditional cadaver specimens in human anatomy teaching programs.…”

Compensation of acetabular defects in hip arthroplasty

“…Латеральный контур «фигуры слезы» одновременно является дном вертлужной впадины в области её ямки. Он переходит в крышу вертлужной впадины, которая соответствует суставной поверхности [12].…”

“…Аллотрансплантация до настоящего времени остаётся распространённым вариантом костной пластики. Использование измельчённого аллотрансплантата при небольших дефектах зарекомендовало себя как надёжный и эффективный метод [44][45][46]. Наличие обширного дефекта типов IIВ, IIIA, IIIB по W.G.…”