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DOI: 10.1055/s-0035-1545989
Vermeidung des patellofemoralen Overstuffings
Avoidance of Patello-Femoral OverstuffingPublication History
Publication Date:
26 June 2015 (online)
Zusammenfassung
Die Rekonstruktion des patellofemoralen Kompartiments und somit die Vermeidung eines Overstuffings ist ein wichtiger Baustein auf dem Weg zu einer erfolgreichen Knie-TEP. Dass dies nicht immer gelingt, zeigt die relativ hohe Revisionsrate von ca. 15 % für das patellofemorale Kompartiment. Das Overstuffing, als ein Problem, kann dabei zahlreiche Ursachen aufweisen und auch zu multiplen klinischen Symptomen führen, die von der limitierten Flexion über ein patellofemorales Maltracking bis hin zum vorderen Knieschmerz reichen können. Aufgrund der Relevanz des patellofemoralen Overstuffings werden im folgenden Artikel die verschiedenen möglichen Fehlerquellen dargestellt. Es werden weiterhin Lösungsmöglichkeiten zur Vermeidung erläutert. Die Ursachen des patellofemoralen Overstuffings sind vielfältig. Die Mehrzahl der Fehler treten femoral auf. Aber auch patellar und gelegentlich tibial existieren Fehlermöglichkeiten, die berücksichtigt werden müssen. Bei der Positionierung der femoralen Resektionsblöcke ist sowohl die distale Resektionsebene (Extension/Flexion) von entscheidender Bedeutung als auch die Größenwahl im AP-Block (Anterior–posterior-Block). Hier sollten über eine präoperative Analyse und Prothesenplanung insbesondere im seitlichen Röntgenbild die optimale Prothesengröße und Position bestimmt werden. Bei der Patella ist die Resektionsebene und -höhe entscheidend, um ein Overstuffing zu vermeiden. Auch die Platzierung der Patellakomponente kann, bei lateraler Position, eine Ursache des Overstuffings sein. Zusammenfassend ist die anatomische Rekonstruktion des patellofemoralen Kompartiments ein wichtiger Teil der Knie-TEP-Implantation. Die Vermeidung des patellofemoralen Overstuffings ist durch eine exakte präoperative Planung der femoralen Komponentengröße und -position sowie durch eine präzise Umsetzung der Planung inklusive suffizienter Resektionen möglich.
Abstract
Reconstruction of the patello-femoral compartment and by that avoidance of an overstuffing is one of the important steps for a successful TKA. A revision rate of around 15 % due to problems of the patello-femoral compartment demonstrates that this is not achieved in all cases. There can be many reasons for an overstuffing and also the symptoms can be very variable, showing sometimes a limited flexion, patello-femoral maltracking or anterior knee pain. Due to its relevance the following paper demonstrates the different reasons for a patello-femoral overstuffing. Further possible solutions for avoidance of overstuffing are described. The reasons for patello-femoral overstuffing are multiple. The majority is caused on the femoral side, however additional patellar and tibial reasons exist. During positioning of the femora resection blocks, the distal resection plane (extension/flexion) as well as the AP block for sizing is crucial. For that a pre-op analysis and implant planning in the lateral view of the X-ray should be performed in order to optimise implant size and position. For the patella the correct resection height and plane are important to avoid an overstuffing. A lateral patella component position can be another reason for an overstuffing. In conclusion, it can be stated that an anatomic reconstruction of the patello-femoral compartment is an important part of TKA surgery. The avoidance of a patello-femoral overstuffing can be achieved by exact pre-op planning of the femoral component size and position, and by precise surgery with sufficient bone resection.
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Literatur
- 1 Thienpont E, Fennema P, Price A. Can technology improve alignment during knee arthroplasty. Knee 2013; 20: 21-28
- 2 Scuderi GR. The stiff total knee arthroplasty: causality and solution. J Arthroplasty 2005; 20: 23-26
- 3 Le DH, Goodman SB, Maloney WJ et al. Current modes of failure in TKA: infection, instability, and stiffness predominate. Clin Orthop Relat Res 2014; 472: 2197-2200
- 4 Lo CS, Wang SJ, Wu SS. Knee stiffness on extension caused by an oversized femoral component after total knee arthroplasty: a report of two cases and a review of the literature. J Arthroplasty 2003; 18: 804-808
- 5 Parratte S, Pagnano MW. Instability after total knee arthroplasty. Instr Course Lect 2008; 57: 295-304
- 6 Ghosh KM, Merican AM, Iranpour F et al. The effect of overstuffing the patellofemoral joint on the extensor retinaculum of the knee. Knee Surg Sports Traumatol Arthrosc 2009; 17: 1211-1216
- 7 Laskin RS, Beksac B. Stiffness after total knee arthroplasty. J Arthroplasty 2004; 19: 41-46
- 8 Mihalko W, Fishkin Z, Krackow K. Patellofemoral overstuff and its relationship to flexion after total knee arthroplasty. Clin Orthop Relat Res 2006; 449: 283-287
- 9 Merican AM, Ghosh KM, Baena FR et al. Patellar thickness and lateral retinacular release affects patellofemoral kinematics in total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2014; 22: 526-533
- 10 Sensi L, Buzzi R, Giron F et al. Patellofemoral function after total knee arthroplasty: gender-related differences. J Arthroplasty 2011; 26: 1475-1480
- 11 Metsna V, Vorobjov S, Lepik K et al. Anterior knee pain following total knee replacement correlates with the OARSI score of the cartilage of the patella. Acta Orthop 2014; 85: 427-432
- 12 Khakharia S, Scuderi GR. Restoration of the distal femur impacts patellar height in revision TKA. Clin Orthop Relat Res 2012; 470: 205-210
- 13 Martin JW, Whiteside LA. The influence of joint line position on knee stability after condylar knee arthroplasty. Clin Orthop Relat Res 1990; 259: 146-156
- 14 Su EP. Fixed flexion deformity and total knee arthroplasty. J Bone Joint Surg Br 2012; 94: 112-115
- 15 Nakahara H, Matsuda S, Okazaki K et al. Sagittal cutting error changes femoral anteroposterior sizing in total knee arthroplasty. Clin Orthop Relat Res 2012; 470: 3560-3565
- 16 Tsukeoka T, Tsuneizumi Y, Lee TH. The effect of a sagittal cutting error of the distal femur on the flexion-extension gap difference in total knee arthroplasty. J Arthroplasty 2013; 28: 1099-1102
- 17 Matziolis G, Hube R, Perka C et al. Increased flexion position of the femoral component reduces the flexion gap in total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2012; 20: 1092-1096
- 18 Roßkopf J, Singh PK, Wolf P et al. Influence of intentional femoral component flexion in navigated TKA on gap balance and sagittal anatomy. Knee Surg Sports Traumatol Arthrosc 2014; 22: 687-693
- 19 Ng FY, Jiang XF, Zhou WZ et al. The accuracy of sizing of the femoral component in total knee replacement. Knee Surg Sports Traumatol Arthrosc 2013; 21: 2309-2313
- 20 Incavo SJ, Coughlin KM, Beynnon BD. Femoral component sizing in total knee arthroplasty: size matched resection versus flexion space balancing. J Arthroplasty 2004; 19: 493-497
- 21 Peek AC, Bloch B, Auld J. How useful is templating for total knee replacement component sizing?. Knee 2012; 19: 266-269
- 22 Del Gaizo D, Soileau ES, Lachiewicz PF. Value of preoperative templating for primary total knee arthroplasty. J Knee Surg 2009; 22: 284-293
- 23 Pilling RW, Moulder E, Allgar V et al. Patellar resurfacing in primary total knee replacement: a meta-analysis. J Bone Joint Surg Am 2012; 94: 2270-2278
- 24 Kelly MA. Patellofemoral complications following total knee arthroplasty. Instr Course Lect 2001; 50: 403-407
- 25 Kavolus CH, Hummel MT, Barnett KP et al. Comparison of the Insall-Burstein II and NexGen legacy total knee arthroplasty systems with respect to patella complications. J Arthroplasty 2008; 23: 822-825
- 26 Beldman M, Breugem SJ, van Jonbergen HP. Overstuffing in total knee replacement: no effect on clinical outcomes or anterior knee pain. Int Orthop 2014; Oct 12. [Epub ahead of print]