scholarly journals Clinical Outcomes in Men and Women following Total Knee Arthroplasty with a High-Flex Knee: No Clinical Effect of Gender

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jeffrey M. Nassif ◽  
William S. Pietrzak
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Effect ◽  
Knee Prostheses ◽  
Men And Women ◽  
Male And Female ◽  
Kaplan Meier ◽  
Total Knee ◽  
Gender Based ◽  
And Function ◽  
Gender Specific

While it is generally recognized that anatomical differences exist between the male and female knee, the literature generally refutes the clinical need for gender-specific total knee prostheses. It has been found that standard, unisex knees perform as well, or better, in women than men. Recently, high-flex knees have become available that mechanically accommodate increased flexion yet no studies have directly compared the outcomes of these devices in men and women to see if gender-based differences exist. We retrospectively compared the performance of the high-flex Vanguard knee (Biomet, Warsaw, IN) in 716 male and 1,069 female knees. Kaplan-Meier survivorship was 98.5% at 5.6–5.7 years for both genders. After 2 years, mean improvements in Knee Society Knee and Function scores for men and women (50.9 versus 46.3; 26.5 versus 23.1) and corresponding SF-12 Mental and Physical scores (0.2 versus 2.2; 13.7 versus 12.2) were similar with differences not clinically relevant. Postoperative motion gains as a function of preoperative motion level were virtually identical in men and women. This further confirms the suitability of unisex total knee prostheses for both men and women.

Does knee instability relate to pain and function following total knee arthroplasty?

Physiotherapy ◽  
2015 ◽  
Vol 101 ◽  
pp. e532
Author(s):  
A. Alnagmoosh ◽  
A. Harmer ◽  
M. van der Esch ◽  
M. Simic ◽  
M. Fransen
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Knee Instability ◽  
Total Knee ◽  
And Function

Corrigendum to “The early results of gender-specific total knee arthroplasty in Thai patients” [The Knee 18 (2011) 483–487]

The Knee ◽  
2012 ◽  
Vol 19 (3) ◽  
pp. 227
Author(s):  
Aree Tanavalee ◽  
Thana Rojpornpradit ◽  
Sukree Khumrak ◽  
Srihatach Ngarmukos
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Early Results ◽  
Total Knee ◽  
Gender Specific

scholarly journals Erratum to: Development of a clinical risk score for pain and function following total knee arthroplasty: results from the TRIO study

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Joanna Shim ◽  
David J Mclernon ◽  
David Hamilton ◽  
Hamish A Simpson ◽  
Marcus Beasley ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Risk Score ◽  
Knee Arthroplasty ◽  
Clinical Risk Score ◽  
Clinical Risk ◽  
Total Knee ◽  
And Function

scholarly journals A case of an atraumatic implant failure after primary rotating-hinge total knee arthroplasty

2021 ◽  
Vol 87 (3) ◽  
pp. 449-451
Author(s):  
Lucas Petitqueux ◽  
Karen Verhulst ◽  
Jan Dauwe ◽  
Dirk Dauwe
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Medical Literature ◽  
Femoral Stem ◽  
Revision Total Knee Arthroplasty ◽  
Knee Prostheses ◽  
Rotating Hinge ◽  
Total Knee ◽  
Rotating Hinge Knee ◽  
Implant Breakage

Rotating-hinge knee implants are fully constrained knee prostheses commonly used for revision total knee arthroplasty. Nevertheless, rotating-hinge devices have been increasingly utilized in primary setting. Complications are inevitable in orthopedic surgery, however, implant breakage after RHK arthroplasty has been rarely described in medical literature. We present a rare case of 70-year-old Caucasian, male patient who suffered an atraumatic femoral stem breakage in a primary NexGen ® Rotating Hinge Knee (Zimmer-Biomet ® , Warsaw, IN, USA).

Prospective, Randomized Clinical Trial Comparing a Novel Motion-Assistive Device to Standard Physical Therapy for Initial Management of Knee Range of Motion after Primary Total Knee Arthroplasty

2021 ◽  
Author(s):  
James L. Cook ◽  
Kylee Rucinski ◽  
Cory R. Crecelius ◽  
Suzin Cunningham ◽  
Trent M. Guess
Keyword(s):  
Clinical Trial ◽  
Total Knee Arthroplasty ◽  
Patient Satisfaction ◽  
Physical Therapy ◽  
Knee Arthroplasty ◽  
Assistive Device ◽  
Initial Management ◽  
Prospective Randomized Clinical Trial ◽  
Total Knee ◽  
And Function

AbstractThis prospective randomized clinical trial assessed a novel device for initial management of knee range of motion (ROM), pain, and function after total knee arthroplasty (TKA). Primary TKA patients with preoperative ROM of at least 5° to 115° were randomized to initial knee motion management: Mizzou BioJoint Flex—novel motion-assistive device with prescribed physical therapy or standard physical therapy—prescribed physical therapy. ROM, pain score, and knee injury and osteoarthritis score for joint replacement (KOOSjr) were obtained preoperatively and 2 weeks, 6 weeks, and 3 months postoperatively. Patient satisfaction for both cohorts and subjective assessments of the MBF device were assessed at 3 months. Readmissions, reoperations, and complications were assessed through 1 year. Nineteen patients were randomized to each cohort, with no significant preoperative differences in demographics, pain score, KOOSjr score, or ROM. Six SPT (31.6%) and 3 MBF (15.8%) patients failed to regain preoperative ROM (p = 0.044). One SPT (5.3%) and eight MBF (42%) patients exceeded 125° ROM (p = 0.019) by 3 months. Total ROM (p = 0.039), pain (p = 0.0068), and function (p = 0.0027) were significantly better for MBF at 3 months. MBF patients reported significantly higher satisfaction (mean, 9.4 ± 1.1 vs. 8.0 ± 1.8, respectively; p = 0.0084). One patient in each group underwent manipulation under anesthesia. No other readmissions, reoperations, or complications were reported. A novel durable medical equipment device can provide a safe and effective patient-controlled method for initial management of knee ROM, pain, and function after primary TKA with potential clinically meaningful advantages over physical therapy alone. In conjunction with physical therapy, management with this novel knee flexion device more effectively restored knee ROM and early patient function when compared with therapy alone and was associated with higher proportions of patients regaining minimum (115°) and desired (125°) levels of knee ROM and clinically meaningful differences in pain scores, knee function, and patient satisfaction. This is a Level 1, prospective trial study.

Breathing Under Water

2020 ◽  
pp. 1-25
Author(s):  
Gabriela Mesquita Borges ◽  
Rita Faria
Keyword(s):  
Identity Formation ◽  
Interpersonal Violence ◽  
Forced Migration ◽  
Symbolic Violence ◽  
Gender Based Violence ◽  
Men And Women ◽  
Refugee Women ◽  
Specific Analysis ◽  
Gender Based ◽  
Gender Specific

The current chapter will allow a better understanding of refugee women's situation in global-forced migration. It also offers a comprehensive account of the ways in which refugee women's experiences of violence are shaped by gendered relations and structures. Furthermore, the chapter will analyze the interactions between the gender identity formation of men and women, the context of escape, displacement and asylum seeking, and the experience or manifestation of gender-based violence against refugee women. Finally, it also intends to illustrate how structural and symbolic violence and power relations cooperate to shape experiences of violence for refugee women and how it can influence and perpetuate interpersonal violence. In this sense, several studies are presented that demonstrate, on one hand, how gender relations are affected by escape, displacement, and asylum, and how they can create different practices of structural and symbolic violence; and, on the other hand, draw attention to the current lack of gender-specific analysis of the problem of asylum and refugees.

Knee Prostheses Reverse Engineering: A Preliminary Investigation

2020 ◽  
Author(s):  
Marco Rossoni ◽  
Daniele Regazzoni ◽  
Andrea Vitali ◽  
Giorgio Colombo ◽  
Luca Spandre ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Reverse Engineering ◽  
Knee Arthroplasty ◽  
Mechanical Performance ◽  
Low Cost ◽  
Preliminary Investigation ◽  
Orthopedic Procedures ◽  
Computer Assisted ◽  
Knee Prostheses ◽  
Total Knee

Abstract Total Knee Arthroplasty is one of the most commonly performed orthopedic procedures and it is expected to grow in the next future. In the last past years, computer-assisted procedures represent one of the trends that are transforming the way of practicing medicine. Cornering the Total Knee Arthroplasty, digital models of the joints have been used to carry out simulation of their kinematics and mechanical performance. Whilst for the 3D digital reconstruction of the patient geometry several studies have been conducted, an approximated geometry of the prosthesis has been several times employed, with undeniable consequences on the final results. This paper aims at comparing two non-contact reverse engineering technologies to acquire the shape of femoral components employed for total knee arthroplasty. A high-level device (Konika Minolta Vivid 9i) and a mid-low cost laser (NextEngine) has been compared. For the comparison, a systematic procedure of acquisition and elaboration of the results has been adopted in order to have as unbiased as possible results. The procedure involves the use of the proprietary software of the scanners for the elaboration of the raw data and the meshing procedure has been kept the same for all the models. Since the as-is acquired mesh is of high-resolution, a decimation procedure has been carried out in order to make the 3D models lighter and easier to be handled. Once the decimation procedure has been evaluated comparing the original and the simplified models to one another, the digitalized models have been compared with the measurements taken from a coordinate measuring machines. As a preliminary result, the two lasers seem to be adequate to accomplish the reverse engineering process as required by this application. Of course, the mid-low cost laser would be preferable whether the performance will be confirmed to be (statistically) equal.

Are Gender-Specific Femoral Implants for Total Knee Arthroplasty Necessary?

2014 ◽  
Vol 29 (4) ◽  
pp. 742-748 ◽  
Author(s):  
Philippe Piriou ◽  
Christian Mabit ◽  
Paul Bonnevialle ◽  
Etienne Peronne ◽  
Gilbert Versier
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Total Knee ◽  
Femoral Implants ◽  
Gender Specific
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