A New Implant for Transfemoral Amputation: Improved Gait and Comfort  

作　　者：Mathieu Assal Halah Kutaish Richard Stern Alice Bonnefoy-Mazure Antoine Acker Axel Gamulin Stephane Stephane Gorki Carmona Alain Lacraz Mathieu Assal;Halah Kutaish;Richard Stern;Alice Bonnefoy-Mazure;Antoine Acker;Axel Gamulin;Stephane Stephane;Gorki Carmona;Alain Lacraz(Foot & Ankle Surgery Center, Centre Assal, Hirslanden Clinique La Colline, Geneva, Switzerland;Faculty of Medicine, Geneva University, Geneva, Switzerland;Willy Taillard Laboratory of Kinesiology, Geneva University Hospitals and Geneva University, Geneva, Switzerland;Division of Orthopaedic Surgery and Traumatology, University Hospitals of Geneva, Geneva, Switzerland)

机构地区：[1]Foot & Ankle Surgery Center, Centre Assal, Hirslanden Clinique La Colline, Geneva, Switzerland [2]Faculty of Medicine, Geneva University, Geneva, Switzerland [3]Willy Taillard Laboratory of Kinesiology, Geneva University Hospitals and Geneva University, Geneva, Switzerland [4]Division of Orthopaedic Surgery and Traumatology, University Hospitals of Geneva, Geneva, Switzerland

出　　处：《Open Journal of Orthopedics》2021年第6期199-205,共7页矫形学期刊（英文）

摘　　要：<b>Introduction:</b> Transfemoral amputation results in a prosthesis<span "=""> </span>which bears weight on the ischium. Gait disturbance,<span "=""> </span>lack of an end-bearing<span "=""> </span><span "="">stump and discomfort in the groin from the socket even while sitting, are important issues. <b>Methods:</b> This is a pilot report of an ongoing randomized blind clinical trial of a new intramedullary implant post transfemoral amputation. Here</span>, we describe<span "=""> </span>a single case illustrating the surgical technique and clinical outcome of a dysfunctional post-traumatic transfemoral amputation addressed with this implant.<span "=""> </span>Clinical gait analysis, SF-12 and VAS were assessed pre- and post-intervention <span "="">at 6 months of follow-up. <b>Results:</b> An improved stump control is accomplished by means of myoplasty and myodesis through an end-cap. Stride width improved from 0.21</span><span "=""> </span>m pre-op to<span "=""> </span>0.13<span "=""> </span>m post-op, and more symmetrical stride length (<span style="white-space:nowrap;"><span style="white-space:nowrap;">△</span></span>0.21<span "=""> </span>m pre-op vs. <span style="white-space:nowrap;"><span style="white-space:nowrap;">△</span></span>0.06<span "=""> </span>m post-op) was noted, indicating improved gait quality and stability. Gait velocity increased (0.51 ± 0.04 m/s pre-op<span "=""> </span><span "="">vs. 0.64 ± 0.02 m/s post-op). <b>Conclusion:</b> This technique reveals improvements in gait parameters in</span><span "=""> </span>a transfemoral amputee treated with a new procedure. Improved prosthesis control, sitting comfort, greater hip range of motion, better gait stability, and enhanced walking abilities were noted.<b>Introduction:</b> Transfemoral amputation results in a prosthesis<span "=""> </span>which bears weight on the ischium. Gait disturbance,<span "=""> </span>lack of an end-bearing<span "=""> </span><span "="">stump and discomfort in the groin from the socket even while sitting, are important issues. <b>Methods:</b> This is a pilot report of an ongoing randomized blind clinical trial of a new intramedullary implant post transfemoral amputation. Here</span>, we describe<span "=""> </span>a single case illustrating the surgical technique and clinical outcome of a dysfunctional post-traumatic transfemoral amputation addressed with this implant.<span "=""> </span>Clinical gait analysis, SF-12 and VAS were assessed pre- and post-intervention <span "="">at 6 months of follow-up. <b>Results:</b> An improved stump control is accomplished by means of myoplasty and myodesis through an end-cap. Stride width improved from 0.21</span><span "=""> </span>m pre-op to<span "=""> </span>0.13<span "=""> </span>m post-op, and more symmetrical stride length (<span style="white-space:nowrap;"><span style="white-space:nowrap;">△</span></span>0.21<span "=""> </span>m pre-op vs. <span style="white-space:nowrap;"><span style="white-space:nowrap;">△</span></span>0.06<span "=""> </span>m post-op) was noted, indicating improved gait quality and stability. Gait velocity increased (0.51 ± 0.04 m/s pre-op<span "=""> </span><span "="">vs. 0.64 ± 0.02 m/s post-op). <b>Conclusion:</b> This technique reveals improvements in gait parameters in</span><span "=""> </span>a transfemoral amputee treated with a new procedure. Improved prosthesis control, sitting comfort, greater hip range of motion, better gait stability, and enhanced walking abilities were noted.

关 键 词：Above Knee Amputation Transfemoral Amputation Gritti-Stokes Weight-Bearing End-Cap 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]