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Mechatronics in Medicine

The MIM Lab develops robotic and mechatronics surgical systems for a variety of procedures.

Head of Group

B415C Bessemer Building
South Kensington Campus

+44 (0)20 7594 7046

What we do

The Mechatronics in Medicine Laboratory develops robotic and mechatronics surgical systems for a variety of procedures including neuro, cardiovascular, orthopaedic surgeries, and colonoscopies. Examples include bio-inspired catheters that can navigate along complex paths within the brain (such as EDEN2020), soft robots to explore endoluminal anatomies (such as the colon), and virtual reality solutions to support surgeons during knee replacement surgeries.

Meet the team

Mr Ayhan Aktas
Casual - Student demonstrator - lower rate

Dr Daniel Bautista Salinas
Research Associate

Dr Kaiwen Chen
Research Associate

Mr Zejian Cui
Research Assistant

Mr Connor Daly
Research Postgraduate

Emeritus Professor Brian L Davies FREng
Emeritus Professor

Mr Zhaoyang Jacopo Hu
Research Postgraduate

Dr Hisham M Iqbal
Research Associate

Mr Alex Ranne
Research Postgraduate

Professor Ferdinando M Rodriguez y Baena
Co-Director of Hamlyn Centre, Professor of Medical Robotics

Dr Jialei Shi
Research Associate

Mr Spyridon Souipas
Casual - Other work

Ms Emilia Zari
Research Postgraduate

Citation

BibTex format

@article{Ng:2021:10.1016/j.arthro.2020.08.037,
author = {Ng, KCG and Bankes, M and El, Daou H and Rodriguez, y Baena F and Jeffers, J},
doi = {10.1016/j.arthro.2020.08.037},
journal = {Arthroscopy: The Journal of Arthroscopy and Related Surgery},
pages = {159--170},
title = {Cam osteochondroplasty for femoroacetabular impingement increases microinstability in deep flexion: A cadaveric study},
url = {http://dx.doi.org/10.1016/j.arthro.2020.08.037},
volume = {37},
year = {2021}
}

Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Purpose: The purpose of this in vitro cadaveric study was to examine the contributions of each surgical stage during cam femoroacetabular impingement (FAI) surgery (i.e., intact cam hip, T8 capsulotomy, cam resection, capsular repair) towards hip range of motion, translations, and microinstability.Methods: Twelve cadaveric cam hips were denuded to the capsule and mounted onto a robotic tester. Hips were positioned in several flexion positions: Full Extension, Neutral 0°, Flexion 30°, and Flexion 90°; and performed internal-external rotations to 5-Nm torque in each position. Hips underwent a series of surgical stages (T-capsulotomy, cam resection, capsular repair) and was retested after each stage. Changes in range of motion, translation, and microinstability (overall translation normalized by femoral head radius) were measured after each stage.Results: For range of motion, cam resection increased internal rotation at Flexion 90° (ΔIR = +6°, P = .001), but did not affect external rotation. Capsular repairs restrained external rotations compared to the cam resection stage (ΔER = –4 to –8°, P ≤ .04). For translations, the hip translated after cam resection at Flexion 90° in the medial-lateral plane (ΔT = +1.9 mm, P = .04), relative to the intact and capsulotomy stages. For microinstability, capsulotomy increased microinstability in Flexion 30° (ΔM = +0.05; P = .003), but did not further increase after cam resection. At Flexion 90°, microinstability did not increase after capsulotomy (ΔM = +0.03; P = .2, d = .24), but substantially increased after cam resection (ΔM = +0.08; P = .03), accounting for a 31% change with respect to the intact stage.Conclusions: Cam resection increased microinstability by 31% during deep hip flexion relative to the intact hip. This suggests that iatrogenic microinstability may be due to separation of the labral seal and resected contour of the femoral head.
AU  - Ng,KCG
AU  - Bankes,M
AU  - El,Daou H
AU  - Rodriguez,y Baena F
AU  - Jeffers,J
DO  - 10.1016/j.arthro.2020.08.037
EP  - 170
PY  - 2021///
SN  - 0749-8063
SP  - 159
TI  - Cam osteochondroplasty for femoroacetabular impingement increases microinstability in deep flexion: A cadaveric study
T2  - Arthroscopy: The Journal of Arthroscopy and Related Surgery
UR  - http://dx.doi.org/10.1016/j.arthro.2020.08.037
UR  - https://www.sciencedirect.com/science/article/pii/S0749806320307325?via%3Dihub
UR  - http://hdl.handle.net/10044/1/82045
VL  - 37
ER  -