TITLE

Functional Outcome and Range of Motion of High-Flexion Posterior Cruciate-Retaining and High-Flexion Posterior Cruciate- Substituting Total Knee Prostheses

AUTHOR(S)
Young-Hoo Kim; Yoowang Choi; Oh-Ryong Kwon; Jun-Shik Kim
PUB. DATE
April 2009
SOURCE
Journal of Bone & Joint Surgery, American Volume;Apr2009, Vol. 91-A Issue 4, p753
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background: Although the design features of the high-flexion posterior cruciate-retaining and high-flexion posterior cruciate-substituting total knee prostheses reportedly improve the range of knee motion, a clinical comparison of both systems with regard to range of motion has not been reported, to our knowledge. The purpose of the present study was to compare the range of motion and functional outcome in knees receiving either a high-flexion posterior cruciate-retaining or a high-flexion posterior cruciate-substituting total knee prosthesis. Methods: Two hundred and fifty patients (mean age, 71.6 years) received a high-flexion posterior cruciate-retaining total knee prosthesis in one knee and a high-flexion posterior cruciate-substituting total knee prosthesis in the contralateral knee. Ten patients were men, and 240 were women. At the time of each follow-up (minimum duration of follow-up, two years; mean, 2.3 years), the patients were assessed clinically and radiographically with use of the knee-rating systems of the Knee Society and the Hospital for Special Surgery. In addition, each patient completed the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) questionnaire. Non-weight-bearing and weight-bearing ranges of knee motion were determined in both groups. Results: The mean postoperative Knee Society knee score was 94 points for the knees treated with a high-flexion cruciate-retaining prosthesis and 95 points for those treated with a high-flexion posterior cruciate-substituting prosthesis. The mean postoperative Hospital for Special Surgery knee score was 90 points for the knees that had been treated with a high-flexion posterior cruciate-retaining prosthesis and 91 points for those that had been treated with the high-flexion posterior cruciate-substituting prosthesis. At the time of the latest follow-up, the knees that had been treated with a high- flexion posterior cruciate-retaining prosthesis had a mean non-weight-bearing range of motion of 133° and a mean weight- bearing range of motion of 118°. The knees that had been treated with a high-flexion posterior cruciate-substituting prosthesis had a mean non-weight-bearing range of motion of 135° and a mean weight-bearing range of motion of 122°. No knee had aseptic loosening, revision, or osteolysis. Conclusions: After a minimum duration of follow-up of two years, there was no difference in range of motion or clinical and radiographic results between knees that had received a high-flexion posterior cruciate-retaining total knee prosthesis and those that had received a high-flexion posterior cruciate-substituting total knee prosthesis. Level of Evidence: Therapeutic Level I. See Instruction to Authors for a complete description of levels of evidence.
ACCESSION #
37614963

 

Related Articles

  • Range of Motion in Total Knee Arthroplasty: A Prospective Comparison of High-Flexion and Standard Cruciate-Retaining Designs. Jong Keun Seon; Sang Jin Park; Keun Bae Lee; Taek Rim Yoon; Kozanek, Michal; Eun Kyoo Song // Journal of Bone & Joint Surgery, American Volume;Mar2009, Vol. 91-A Issue 3, p672 

    Background: Range of motion after a total knee arthroplasty is an important indicator of clinical outcome. Recently, a high-flexion posterior cruciate ligament-retaining knee prosthesis was designed to allow greater flexion after total knee arthroplasty. The purpose of this study was to compare...

  • Optimizing Range of Motion in Cruciate-retaining Mobile-bearing TKA: Experience with 2000 Cases. Goldstein, Wayne M.; Gordon, Alexander C.; Branson, Jill Jasperson // Orthopedics;Sep2006 Supplement, Vol. 29, pS71 

    We describe experience with 2000 cruciate-retaining Sigma RP total knee arthroplasties performed between September 2000 to January 2006. All procedures were performed with a midvastus arthrotomy, medioposterior release, and posterior condylar clean-out technique. This implant design uses a...

  • Lateral Unicompartmental Knee Arthroplasty Through a Medial Approach: Surgical Technique. Sah, Alexander P.; Scott, Richard D. // Journal of Bone & Joint Surgery, American Volume;Oct2008 Supplement 2, Vol. 90-A, p195 

    BACKGROUND: Unicompartmental knee arthroplasty of the medial compartment has excellent long-term clinical outcomes. Arthritis isolated to the lateral compartment is much less common; subsequently, the clinical outcomes of the treatment of that condition are less frequently reported. Most...

  • Use of Porous Tantalum Metaphyseal Cones for Severe Tibial Bone Loss During Revision Total Knee Replacement. Meneghini, R. Michael; Lewallen, David G.; Hanssen, Arlen D. // Journal of Bone & Joint Surgery, American Volume;Mar2009 Supplement, Vol. 91-A, p131 

    BACKGROUND: The best treatment method for large tibial bone defects during revision knee replacement has not been established. The purpose of this study was to determine the initial results obtained with a unique reconstructive implant, the porous tantalum metaphyseal cone, designed as an...

  • THE BIOMECHANICAL EFFECTS OF VARIABILITY IN FEMORAL AND TIBIAL COMPONENT ROTATIONAL ALIGNMENT DURING TOTAL KNEE ARTHROPLASTY IN A SIMULATED OXFORD RIG. Thompson, Julie; Hast, Michael; Granger, Jeffrey; Piazza, Stephen; Siston, Robert // Conference Proceedings of the Annual Meeting of the American Soc;2010, p319 

    The article discusses a study which investigated how knee kinematics, quadriceps force and ligament forces are affected by the femoral and tibial component rotational alignment in total knee arthroplasty (TKA). A forward-dynamic model of an Oxford Rig was used to study biomechanical effects. The...

  • Three- to six-year follow-up results after high-flexion total knee arthroplasty: can we allow passive deep knee bending? Sung-Do Cho; Yoon-Seok Youm; Ki-Bong Park // Knee Surgery, Sports Traumatology, Arthroscopy;Jun2011, Vol. 19 Issue 6, p899 

    Purpose: We evaluated 3- to 6-year clinical and radiological follow-up results after NexGen LPS-flex total knee arthroplasty (TKA). Methods: A retrospective evaluation was undertaken of 218 knees in 166 patients (22 males, 144 females) who were followed up for more than 3 years after TKA....

  • Ligamentous Balancing in Rotating-platform Knees. Fehring, Thomas K. // Orthopedics;Sep2006 Supplement, Vol. 29, pS56 

    The primary objectives of total knee arthroplasty are to reduce pain, maximize range of motion (ROM), and provide stability through the gait cycle. Pain relief depends on proper ligamentous balancing and solid implantation. Solid implantation is typically assured through cementation, whereas...

  • Is it really necessary to flex high after TKR? Rajmohan R. P. // Kerala Journal of Orthopaedics;Jan2013, Vol. 26 Issue 1, p20 

    High flexion knee replacements have been developed to accommodate a larger range of motion ( ROM > 120 ). It is found that some activities like kneeling and squatting require a flexion of 110 to 120°. But current reports reveal that on average, patients rarely flex beyond 120° after TKR. A...

  • Is Knee Range of Movement on Discharge Important After Total Knee Replacement - A prospective audit based study. Darch, Ross; Swan, Jonathan; Wainwright, Tom; Middleton, Robert // Indian Journal of Physiotherapy & Occupational Therapy;Jul-Sep2011, Vol. 5 Issue 3, p10 

    Questions: Is knee range of movement on discharge important after total knee replacement? Is there a difference in flexion over 6 weeks post TKR between sub-groups based on varying flexion scores on discharge? Design: A prospective audit utilising a repeated measures design was adopted, using a...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics