Zimmer unicompartmental high flex knee utilizing zimmer patient specific instruments with the zimmer unicompartmental high flex knee provides a proven and personalized solution for your patients. Newcastle joint care centre broadmeadow 2292 australia david g. Medial unicompartmental knee arthroplasty uka is generally accepted as the best procedure when only the medial compartment of the knee is affected by symptomatic osteoarthritis oa. A second decade lifetable survival analysis of the 4 p oxford unicompartmental knee arthroplasty. All patients were implanted with a medial zimmer unicompartmental high flex knee system zimmer inc. Management of the failed medial unicompartmental knee. Zuk is a clinically proven uni knee replacement introduced globally in 2004. This surgery removes a part of the knee joint that is damaged by osteoarthritis, avascular necrosis, or osteonecrosis.
Oxford unicompartmental knee manual of the surgical. Patient will be weight bearing as tolerated with a crutches or walker initially. Among various treatments for oa, modern unicompartmental knee arthroplasty uka has been considered a good treatment due to improved. The alignment goals for unicompartmental knee arthroplasty. With total knee replacement, the entire surface has to be removed. Knee moments after unicompartmental knee arthroplasty. In these cases the remaining opposite compartment articular cartilage is physically and biomechanically intact and capable of bearing normal loads. Preoperative planning ake standing weightbearing ap, lateral, and skyline t. Using the criteria given above, about one in four osteoarthritic knees requiring replacement are suitable for oxford medial unicompartmental arthroplasty. Obliquity of tibial component after unicompartmental knee.
First studies and registry data have shown equally good clinical results of cementless oukr compared to the cemented version. The persona partial knee system is a unicondylar knee replacement system that is designed with an instrument platform that provides surgeons with tools to help. With the increased number of individuals who will seek solutions for painful knee osteoarthritis oa, it is important to have several, evidencebased alternatives available so that the best treatment for a given individual can be selected. Simultaneous in vitro measurement of patellofemoral kinematics and forces following oxford medial unicompartmental knee replacement. The pfj prosthesis may be used alone or with the zimmer unicompartmental knee system or mg unicompartmental knee system to treat. Unicompartmental knee replacement aftercare instructions. Unicompartmental knee replacement is an option for a small percentage of patients with osteoarthritis of the knee.
Understanding unicompartmental knee replacement login. Its your assurance that zimmer biomet not only makes a proven partial knee, but we stand behind it 100%. Zimmer unicompartmental high flex knee spacer block surgical. Zimmer unicompartmental high flex knee built on success in todays health care environment, meeting patient demands means building on proven concepts while expanding surgical options and flexibility. Unicompartmental knee arthroplasty alias uni knee an overview with nursing implications. The takehome message from the study by mohammad et al. Results of unicompartmental knee arthroplasty at a minimum of ten years of followup. In unicompartmental knee replacement also called partial knee replacement only a portion of the knee is resurfaced with metal and plastic components. According to our knowledge, there is no prior article that reports functional results of medial collateral ligament mcl primary repair and insert change after mcl rupture and mobilebearing dislocation as a late complication of unicompartmental knee replacement ukr.
Presented at vumedi webinar on partial knee arthroplasty. The oxford partial knee comes with the only lifetime knee implant replacement warranty in the us. Zimmer unicompartmental high flex knee spacer block surgical technique technique tip intro. The basic goals of unicompartmental knee arthroplasty are to improve limb alignment and function, and to reduce pain. Consult zimmers entire zimmer unicompartmental highflex knee system catalogue on medicalexpo. Unicompartmental knee replacement page 7 subacromial decompression oxford unicompartmental knee replacement depending on how much of your knee is affected by arthritis, surgeons can sometimes perform a partial knee replacement also known as a unicompartmental knee replacement, ukr as opposed to a total knee replacement tkr. Personapartial zimmer pdf catalogs technical documentation. There is either cpt 27446, arthroplasty, knee, medial or lateral compartment, or 27486, revision of total knee arthroplasty, 1 component.
The zimmer unicompartmental knee system is designed for use when load bearing rom is expected to be less than or equal to 155 degrees. Zimmer patient specific instruments streamline total knee replacement surgery by ensuring accurate and reproducible guide fixation. Class 2 device recall zimmer unicompartmental knee. Although outcomes of unicompartmental knee arthroplasty may not match those of a primary tka, they tend to exceed results of revision. Mckeever in the 1950s, followed up by both mckeever and macintosh introducing metallic tibial components that.
Unicompartmental knee replacement is indicated for patients with osteoarthritis isolated to the medial or lateral tibiofemoral compartments. You may only require an arthroscopic surgery, you may need an oxford partial knee replacement, or you may need a total replacement. This knee may help maintain natural ligaments, reduce bone resection removal and incision size as compared to total knee replacement in addition to the potential for quicker recovery and less pain. Pdf on jun 9, 2017, daniele imarisio and others published lateral unicompartmental knee arthroplasty. The next era of personalization in fixed bearing partial knee design zimmer biomet is the leading company in partial knee arthroplasty11. Zimmer patient specific instruments for the zimmer.
Unicompartmental knee arthroplasty uka has been shown to be an effective treatment for isolated osteoarthritis affecting the medial or lateral compartment. Unicompartmental knee arthroplasty uka was introduced into clinical practice for treating unicompartmental osteoarthrosis by mckeever,1 who performed the first implant in 1952. Unicompartmental and patellofemoral arthroplasty pfa are not new concepts as shown by different authors, and nowadays surgical solutions other than total knee arthroplasty tka must be considered, exploiting the technical possibilities offered by. In vivo determination of kinematics for subjects having a zimmer unicompartmental high flex knee system. Clinical assistant professor of orthopaedics university of. The success of the procedure depends on the surgical technique and the choice of a proper treatment.
Lonner, md, is director of knee replacement surgery at pennsylvania hospital, 800 spruce st. Unicompartmental knee replacement is an option for some patients with osteoarthritis of the knee. Purpose tibial radiolucent lines rl are commonly seen in cemented unicompartmental knee replacement ukr. An additional radiograph while stressing the limits of the collateral ligaments may be helpful in assessing the maximum correction. Cementless oxford partial knee unicompartmental knee replacement system, oxf uni cless tib tra ys lm size aa through to oxf uni cless tib tra y rm size f ltem number lot numbers. My surgeon performed a revision unicompartmental knee arthroplasty, for which there is no cpt code. Zimmer unicompartmental high flex knee surgical technique introduction unicompartmental knee arthroplasty uka has been shown to be an effective treatment for isolated osteoarthritis. Persona partial knee system surgical technique zimmer biomet. Unicompartmental knee arthroplasty in patients sixty years of age.
Zimmer unicompartmental knee arthroplasty using patient. Likover for a complete evaluation of your knee pain problem. Zimmer biomet is the leading company in partial knee arthroplasty. Unicompartmental knee replacement ukr is also called unicompartmental arthoplasty. Unicompartmental knee arthroplasty uka has been shown to be an effective treatment for isolated osteoarthritis. This guide to the surgical technique is a stepbystep procedure written for medial compartment uka using zimmer patient specific instruments psi. Your doctor may recommend partial knee replacement if your arthritis is confined to a single part compartment of your knee. In total 264 patients 39% went home on the day of surgery, 253 38% on day 1 and 152 23% stayed in 2 or more days range 2 to 28 days. Clinical outcomes of the participants were assessed at six months postoperatively using the knee society score. Urgent fjeld safety notice advisory notice affected product. But with the oxford partial knee from zimmer biomet, you can keep up to 75% of your healthy knee for a more rapid recovery 1 with more natural motion.
This procedure is an alternative to total knee replacement for patients whose disease is limited to just one area of the knee. The unicompartmental knee from zimmer is designed for patients with isolated damage in medial or lateral portions compartments of the knee. Zimmer unicompartmental high flex knee system brochure. Zimmer unicompartmental knee system k122529 and in the zimmer persona personalized knee system reference device k150090 and k121771. There are welldefined circumstances in which the oxford partial knee for medial arthroplasty is appropriate, and. Zimmer uni knee using patient specific instrumentation. Sports activities after medial unicompartmental knee. Unicompartmental knee arthroplasty part 1 of 8 youtube. If you have substantial pain in your knee, you should schedule an appointment with dr. The place for unicompartmental replacement in cases of osteoarthritis, unicompartmental knee replacement competes with upper tibial osteotomy at one end of the disease spectrum and with total condylar joint replacement at the other. There were 669 consecutive primary unilateral unicompartmental knee replacements from september 2016 to february 2018.
Full correction of the malalignment would return the knee to neutral alignment fig. Zimmer patient specific instruments knee, hip, shoulder. The zimmer gender solutions patellofemoral joint pfj may be used with the persona partial knee system. The allegretto unicompartmental resurfacing femoral component is compatible with the persona partial knee tibial tray and bearing components. Some failures can be managed with retention of the implant, whereas others require revision to total knee arthroplasty tka, possibly including augments and stems. Most substantial knee pain problems can be helped or cured by. Previous tibial condyle or plateau fractures with loss of anatomy or function. The zimmer gender solutions patellofemoral joint prosthesis pfj is intended for replacement of the femoral trochlea of the patellofemoral joint that has been affected by the disease process andor injury. Oxford medial unicompartmental knee arthroplasty, a survival analysis of an independent series. Results after cementless medial oxford unicompartmental. Introduction of an innovative day surgery pathway for.
Oxford partial knee replacement oxford unicompartmental. Your knee is divided into three major compartments. Should we do more unicompartmental knee replacements. Unicompartmental knee replacement protocol the following protocol should be used as a guideline for rehabilitation progression, but may need to be altered pending the nature and extent of the surgical procedure, healing restraints or patient tolerance. Zimmer unicompartmental high flex knee patient matching anatomically shaped tibial and femoral components are designed to provide maximum bone coverage. The clinical outcome of minimally invasive phase 3 oxford unicompartmental knee. Over the course of these years, the popularity of this technique and the enthusiasm for. To replace knee joints in patients with a variety of degenerative knee conditions. At the end of the 1960s, marmor2 disseminated the technique and it was subsequently advocated by cartier et al. Oxford unicompartmental knee manual of the surgical technique. In this 70 minute video, dr robert gorab performs a unicompartmental knee arthroplasty. Natural kinematics the zimmer uni knee is designed to replicate the kinematics of the natural knee with normal axial rotation and posterior femoral rollback. Zimmer unicompartmental high flex knee surgical technique psi. Based on your patients mri, mechanical axis pin guides conform.