NDLI: Does hyperflex total knee design improve postoperative active flexion?

Please wait, while we are loading the content...

Does combined posterior cruciate ligament and posterolateral corner reconstruction for chronic posterior and posterolateral instability restore normal knee function?

Does reconstruction of isolated chronic posterior cruciate ligament injuries restore normal knee function?

Is external rotation the correct immobilisation for acute shoulder dislocation? An MRI study.

Complications of the Luque-Galveston scoliosis correction technique in paediatric cerebral palsy.

Is combining massive bone allograft with free vascularized fibular flap the children's reconstruction answer to lower limb defects following bone tumour resection?

Total hip arthroplasty offset measurement: is C T scan the most accurate option?

Arthroscopic surgery in children.

Ollier's disease limb lenghtening: should intramedullary nailing be combined with circular external fixation?

Technique and early experience with posterior arthroscopic tibiotalocalcaneal arthrodesis.

Anterior ankle bony impingement with joint motion loss: the arthroscopic resection option.

Percutaneous hallux valgus correction using the Reverdin-Isham osteotomy.

Chronic ankle instability: biomechanics and pathomechanics of ligaments injury and associated lesions.

Chronic ankle instability. Which tests to assess the lesions? Which therapeutic options?

Chronic lateral ankle instability surgical repairs: the long term prospective.

Recurrent Legg-Perthes-Calvé disease.

Thoracolumbar junction lateral spine dislocation.

Does hyperflex total knee design improve postoperative active flexion?

Year: 2010 Volume: 96 Issue: 3

Year: 2010 Volume: 96 Issue: 2

Year: 2010 Volume: 96 Issue: 1

Year: 2009 Volume: 95

Does hyperflex total knee design improve postoperative active flexion?

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Massin, P. Dupuy, F-R Khlifi, H. Fornasieri, C. De Polignac, T. Schifrine, P. Farenq, C. Mertl, P.
Description	Country affiliation: France Author Affiliation: Massin P ( Department of Orthopaedic Surgery, Bichat Hospital, North-Paris Teaching Hospitals Group, Paris Diderot Medical School, Paris, France. philippe.massin@bch.aphp.fr)
Abstract	INTRODUCTION: The rotating platform flexion (RPF) Sigma total knee prosthesis (DePuy; Warsaw, Indiana) was designed for maintaining the contact of the condyles with their corresponding tibial plateau throughout the high-flexion range. However, this requires an additional 3-mm bone cut of the posterior condyles. Compared to the conventional design, this modification is intended to improve the flexion range. This hypothesis was tested by studying the increase in flexion (flexion gain, range of motion [ROM], active flexion) of 59 consecutive patients who had received the hyperflex design implant (RPF), whose preoperative mobility values were retrospectively compared to these same values in another 59 consecutive matched patients who had received an implant with the conventional design of the same implant (rotating platform [RP]) between June 2005 and June 2006. Postoperative mobility was measured visually with a goniometer. PATIENTS AND METHODS: Only osteoarthritic knees were eligible to be included. Knees with more than 20 degrees flexion contracture or less than 90 degrees flexion, and patients with a body mass index (BMI) greater than 30 were excluded. Both groups were comparable with regard to age, preoperative mobility values, and BMI. The sex ratio differed significantly, but preoperative mobility did not differ significantly in male and female patients in the RP and in the RPF groups. The difference in sex ratio did not appear to be a bias influencing preoperative mobility. RESULTS: Overall, the flexion gain was correlated to preoperative flexion (r=-0.75, p<0.001). The flexion gain in the RPF group was significantly greater than in the RP group (13+-20 versus 6+-13; p=0.02) as was the ROM gain (10+/-17 degrees versus 4+/-12 degrees; p=0.02). However, the one-year active mean flexions were not significantly different (118+/-14 degrees versus 116+/-6 degrees; p=0.47). In patients whose preoperative flexion was less than 120 degrees (18 and 27 RPF prostheses), the flexion and ROM gains were significantly greater in the RPF group (23+/-16 degrees versus 14+/-16 degrees; p=0.03 and 26+/-18 degrees versus 17+/-9 degrees; p=0.05), and the mean one-year active flexion was also greater in the RPF group (124+/-13 degrees versus 116+/-8 degrees, p=0.02). In patients with more than 120 degrees of preoperative flexion, the flexion and ROM gains and the final mean flexions in both groups were comparable. In particular, there were nine patients in the RP group and ten patients in the RPF group whose flexion decreased. CONCLUSION: Thus, the Sigma RPF prosthesis provided a significant additional flexion gain in patients with 90-120 degrees preoperative flexion, and less than 20 degrees flexion contracture. Patients with a preoperative flexion greater than 120 degrees were exposed to a decrease in flexion range whichever implant was used, RP or RPF. LEVEL OF EVIDENCE: Level 3, therapeutic study.
File Format	HTM / HTML
Issue Number	4
Volume Number	96
e-ISSN	18770568
Journal	Orthopaedics & Traumatology: Surgery & Research
Language	English
Publisher	Elsevier
Publisher Date	2010-06-01
Publisher Place	France
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Orthopedics Discipline General Surgery Discipline Traumatology Arthroplasty, Replacement, Knee Instrumentation Knee Prosthesis Osteoarthritis, Knee Surgery Aged Aged, 80 And Over Female Humans Male Middle Aged Physiopathology Prosthesis Design Radiography Range Of Motion, Articular Physiology Retrospective Studies Treatment Outcome Comparative Study Journal Article
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Factors affecting range of motion after total knee arthroplasty in patients with more than 120 degrees of preoperative flexion angle.

Outcome and range of motion using a high-flexion cruciate-retaining TKA.

Bicruciate substituting design does not improve maximal flexion in total knee arthroplasty: a randomized controlled trial.

Postoperative flexion analysis of 3 rotating-platform knee designs.

Medial unicompartmental knee arthroplasty: does tibial component position influence clinical outcomes and arthroplasty survival?

Lateral laxity in flexion increases the postoperative flexion angle in cruciate-retaining total knee arthroplasty.

Isolated tibial polyethylene insert exchange outcomes after total knee arthroplasty.

Effect of posterior design changes on postoperative flexion angle in cruciate retaining mobile-bearing total knee arthroplasty.

Can high-flexion tibial inserts improve range of motion after posterior cruciate-retaining total knee arthroplasty?

Does hyperflex total knee design improve postoperative active flexion?

Similar Documents

Factors affecting range of motion after total knee arthroplasty in patients with more than 120 degrees of preoperative flexion angle.

Outcome and range of motion using a high-flexion cruciate-retaining TKA.

Bicruciate substituting design does not improve maximal flexion in total knee arthroplasty: a randomized controlled trial.

Postoperative flexion analysis of 3 rotating-platform knee designs.

Medial unicompartmental knee arthroplasty: does tibial component position influence clinical outcomes and arthroplasty survival?

Lateral laxity in flexion increases the postoperative flexion angle in cruciate-retaining total knee arthroplasty.

Isolated tibial polyethylene insert exchange outcomes after total knee arthroplasty.

Effect of posterior design changes on postoperative flexion angle in cruciate retaining mobile-bearing total knee arthroplasty.

Can high-flexion tibial inserts improve range of motion after posterior cruciate-retaining total knee arthroplasty?

Does hyperflex total knee design improve postoperative active flexion?