Der navigationsgest�tzte bicondyl�re Oberfl�chenersatz bei der sekund�ren Gonarthrose des RA-Patienten im Vergleich zur konventionellen Implantationstechnik

Perlick, L.; Bäthis, H.; Lerch, K.; Lüring, C.; Tingart, Markus; Grifka, Joachim

doi:10.1007/s00393-004-0569-4

Cited by 28 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As several prospective randomized studies could show, the standard deviation of the mechanical leg axis is reduced significantly [4, 14, 16]. The mechanical leg axis is one important factor influencing the mechanical load distribution in the knee joint.…”

Section: Introductionmentioning

confidence: 99%

Reliability of computer-assisted surgery as an intraoperative ruler in navigated high tibial osteotomy

Gebhard¹,

Krettek

Hüfner

et al. 2010

Arch Orthop Trauma Surg

View full text Add to dashboard Cite

BackgroundComputer-assisted surgery (CAS) can act as an intraoperative ruler in high tibial osteotomy (HTO) to visualize continuously the leg during surgery.QuestionsThe aim of the study is to evaluate the accuracy of CAS with respect to preoperative planning and postoperative deviation from the planned leg axis in HTO. In addition, the influence of surgeon experience as well as operation time and perioperative complications are analyzed.MethodsA prospective multicenter study case series with follow-up at 6 weeks was performed in six centers. Medial open-wedge HTO with Tomofix® was done using computer assisted navigation technique with the Brainlab VV Osteotomy 1.0 module.ResultsFifty-one patients with medial gonarthritis were treated with navigated HTO. The follow-up rate was 98%. The majority of HTO–CAS patients fell within the tolerated limit of ±3° for leg axis deviation, however, seven patients were reported with deviations outside of this range: three patients had deviations of >3°–4.5° and four patients >4.5°, respectively. Eight intraoperative complications were documented, partially resulting from technical problems associated with the navigation system. During the 6-week follow-up period, three postoperative complications were experienced, all not associated with navigation technology.ConclusionsIn about 85% of cases, a perfect result in terms of deviation of the planned mechanical leg axis could be achieved. Computer assistance in HTO proved to be a helpful tool regarding intraoperative control of leg axis.Level of evidenceLevel I, High quality prospective study (all patients were enrolled at the same preoperative planning point with ≥80% follow-up of enrolled patients).

show abstract

Section: Introductionmentioning

confidence: 99%

Reliability of computer-assisted surgery as an intraoperative ruler in navigated high tibial osteotomy

Gebhard¹,

Krettek

Hüfner

et al. 2010

Arch Orthop Trauma Surg

View full text Add to dashboard Cite

show abstract

“…Even though computer-assisted surgery (CAS) has been shown to improve implant positioning of the femoral and tibial component and to restore more precisely the mechanical axis in TKA [1–3, 16, 17], long-term results are lacking and there is no evidence yet that CAS also improves patient satisfaction [43]. Most prospective studies did concentrate on the radiological evaluation [2, 12, 17, 23, 32, 34, 42, 47], and only few included self-reported questionnaires such as WOMAC score or others [10, 16, 30, 31]. …”

Section: Introductionmentioning

confidence: 99%

Clinical outcome using a ligament referencing technique in CAS versus conventional technique

Lehnen¹,

Giesinger²,

Warschkow³

et al. 2010

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

PurposeComputer-assisted surgery (CAS) for total knee arthroplasty (TKA) has become increasingly common over the last decade. There are several reports including meta-analyses that show improved alignment, but the clinical results do not differ. Most of these studies have used a bone referencing technique to size and position the prosthesis. The question arises whether CAS has a more pronounced effect on strict ligamentous referencing TKAs.MethodsWe performed a prospective cohort study comparing clinical outcome of navigated TKA (43 patients) with that of conventional TKA (122 patients). Patients were assessed preoperatively, and 2 and 12 months postoperatively by an independent study nurse using validated patient-reported outcome tools as well as clinical examination.ResultsAt 2 months, there was no difference between the two groups. However, after 12 months, CAS was associated with significantly less pain and stiffness, both at rest and during activities of daily living, as well as greater overall patient satisfaction.ConclusionThe present study demonstrated that computer-navigated TKA significantly improves patient outcome scores such as WOMAC score (P = 0.002) and Knee Society score (P = 0.040) 1 year after surgery in using a ligament referencing technique. Furthermore, 91% were extremely or very satisfied in the CAS TKA group versus 70% after conventional TKA (P = 0.007).

show abstract

“…Most agree that better alignment, that is less than three degrees of neutral, can be achieved with CAS. 51,93,94 The relative risk of malalignment has been reported to decrease by 25%. 95 A recent meta-analysis of the current literature failed to verify improved long-term outcomes with CAS.…”

Section: Techniques Of Ligament Balancingmentioning

confidence: 99%

The relevance of ligament balancing in total knee arthroplasty: how important is it? A systematic review of the literature

Babazadeh

Stoney²,

Lim³

et al. 2009

Orthop Rev

View full text Add to dashboard Cite

Ligament balancing affects many of the postoperative criteria for a successful knee replacement. A balanced knee contributes to improved alignment and stability. Ligament balancing helps reduce wear and loosening of the joint. A patient with a balanced knee is more likely to have increased range of motion and proprioception, and decreased pain. All these factors help minimize the need for revision surgery. Complications associated with ligament balancing can include instability caused by over-balancing and the possibility of neurovascular damage during or as a result of ligament balancing. This article attempts to summarize the literature, to define a balanced knee, and outline the benefits and possible complications of ligament balancing. Different techniques, sequences, and tools used in ligament balancing, and their relevance in correcting various deformities are reviewed.

show abstract

Der navigationsgest�tzte bicondyl�re Oberfl�chenersatz bei der sekund�ren Gonarthrose des RA-Patienten im Vergleich zur konventionellen Implantationstechnik

Abstract: The use of the imageless Vector-Vision navigation system provides the patient a good chance for longterm survival. Especially the ligament balancing tool appears to be useful. Cutting errors can be detected and intraoperatively corrected.

Cited by 28 publications

References 27 publications

Reliability of computer-assisted surgery as an intraoperative ruler in navigated high tibial osteotomy

Reliability of computer-assisted surgery as an intraoperative ruler in navigated high tibial osteotomy

Clinical outcome using a ligament referencing technique in CAS versus conventional technique

The relevance of ligament balancing in total knee arthroplasty: how important is it? A systematic review of the literature

Contact Info

Product

Resources

About