Triboelectric touch sensor for position mapping during total hip arthroplasty
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BMC Research Notes Open Access
RESEARCH NOTE
Triboelectric touch sensor for position mapping during total hip arthroplasty Jae Bum Jeong1†, Hyeok Kim2† and Jun‑Il Yoo3*
Abstract Objective: In this research, a triboelectric nanogenerator (TENG) was utilized to determine if a pressure-based sensor could detect bearing friction in a total hip arthroplasty (THA) and detect the contact of specific areas during ROM checks. Results: The pressure-based sensor shows capability to sense bearing friction. In more detail, the TENG embedded in four different sides of the trial exhibits up to 1 V from peak-to-peak. Moreover, these flexible touch sensors with TENG describes a peak signal in output voltage which should lead to extremely sensitive detection of bearing friction induced by the THA. Keywords: Triboelectric touch sensor, Position mapping, Total hip arthroplasty Introduction Total hip arthroplasty (THA) has become a common treatment for end-stage osteoarthritis of the hip [1]. However, despite improved implant designs and surgical techniques, bearing surface wear and the resultant wearinduced osteolysis have been major limitations to longterm prosthesis survival [1–3]. In an attempt to avoid the problems caused by wear debris, hard bearing surfaces, such as ceramic-on-ceramic (CoC) have been developed. In the decades since the 1970s, CoC bearings have made many advances. COC bearings have improved significantly in terms of wear reduction. However, concerns such as ceramic fracture, have not been resolved yet [4]. One of the biggest reasons for ceramic fracture is mal-seating of the ceramic liner [5, 6]. Yoshitoshi et al. reported that 20% of the liners were observed to be malseated in imaging studies [5]. The clinical outcome of liner mal-seating, however, was not determined because
*Correspondence: [email protected] † Jae Bum Jeong and Hyeok Kim contributed equally to this work 3 Department of Orthopaedic Surgery, Gyeongsang National University Hospital, 90 Chilamdong, Jinju, Gyeongnamdo 660‑702, Republic of Korea Full list of author information is available at the end of the article
there was no long-term follow-up. Nevertheless, negative outcomes, such as osteolysis, may occur. In addition, an intraoperative range of motion (ROM) check in the surgical field can predict postoperative impingement. And soft tissue tension and balance are measured by the Shuck test. All of the various postoperative problems depend on the experience and judgement of the surgeon in the operative field. Recently, Mecdessay et al. reported that the method for determining soft tissue balance used in total knee replacement arthroplasty (TKRA) was very inaccurate [7]. Moreover, they also noted that the use of pressure-based sensors increased the accuracy of knee balance determinations. Inertial Measurement Units (IMU) based THA surgery has been reported in the experimental setting. However, there are few reports about sensor-based total hip implants in the real-life clinical field. This is because it is difficult to measure pressure and sof
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