Medial parapatellar approach leads to internal rotation of tibial component in total knee arthroplasty

Schiapparelli, Filippo-Franco; Amsler, Felix; Hirschmann, Michael T.

doi:10.1007/s00167-017-4586-7

Cited by 19 publications

(19 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The position of the prosthetic components is another important aspect that has to be mentioned. A suboptimal TKA position is a well-known source of TKA failure [9,12,13,16,17]. Malpositioned prosthetic components, by altering the Fig.…”

Section: Discussionmentioning

confidence: 99%

“…SPECT/CT images were analysed using a customised software (OrthoExpert©, London, UK). This software has been previously validated in several studies [9,11,12]. In order to localise the in vivo bone stress, the patella was divided into four articular and four non-articular quadrants (superomedial, superolateral, inferomedial, inferolateral) ( Figs.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

No reduced patellar loading with latest-generation cruciate-retaining total knee arthroplasty—a comparative study of Attune and Press-Fit Condylar®

Schiapparelli

Ahmadi

Amsler

et al. 2020

International Orthopaedics (SICOT)

Self Cite

View full text Add to dashboard Cite

Purpose To investigate if the latest-generation cruciate-retaining total knee arthroplasty (CR-TKA) systems through more patella-friendly femoral trochlea reduce the patellar bone loading. Methods Twenty patients who underwent Attune CR-TKA were matched with twenty-one patients who underwent Press-Fit Condylar® (PFC) CR-TKA. The patella was always preserved. The in vivo patellar loading was measured twice by two blinded observers and localised on an 8-quadrant grid on 1-year post-operatively SPECT/CT images. The position of the TKA components, patella height, thickness, tilt, and tibial tuberosity-trochlear groove index were measured in 3D CT. Knee function was assessed pre-operatively, at 12 and 24 months post-operatively with the knee society score (KSS). All data were compared between groups with the Mann-Whitney U test and within groups with Spearman's correlation. Results A significantly higher bone tracer uptake (BTU) was seen in the Attune group in the lateral non-articular patellar quadrants. No other significant differences of the BTU were seen. The post-operative KSS did not differ significantly. Spearman's correlation showed no correlations between the significantly higher BTU of the lateral non-articular patellar quadrants and the position of the TKA and patellar measurements. All patellar measurements did not correlate with bone stress in SPECT/CT. Conclusion No significant improvement in terms of in vivo patellar bone stress was seen with the latest-generation CR-TKA system. The increased bone stress at the non-articular lateral patellar quadrants of the Attune could be due to higher stabilising quadriceps forces.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

No reduced patellar loading with latest-generation cruciate-retaining total knee arthroplasty—a comparative study of Attune and Press-Fit Condylar®

Schiapparelli

Ahmadi

Amsler

et al. 2020

International Orthopaedics (SICOT)

Self Cite

View full text Add to dashboard Cite

show abstract

“…A limited number of studies report the use of 3D-CT analysis for component position measurements after TKA [22,23]. These reports used the method reported by Hirschmann et al, [24] which has a high inter-and intra-observer reliability for component position evaluation [25,26].…”

Section: Discussionmentioning

confidence: 99%

Intra- and Inter-observer Reliability of Implant Positioning Evaluation on a CT-based Three-dimensional Postoperative Matching System for Total Knee Arthroplasty.

Watanabe

Akagi

Shiko

et al. 2020

Preprint

View full text Add to dashboard Cite

Introduction: The evaluation of postoperative total knee arthroplasty (TKA) alignment mainly relies on measurement data obtained from plain radiographs. The aim of this retrospective observational study was to document the intra- and inter-observer reliability in assessment of TKA component positioning after surgery using a three-dimensional (3D) computed tomography (CT) image matching system. Materials and Methods: Fourteen knees from 14 patients who received primary TKA were included, and images were analyzed by blinded readers not associated with the surgeries. The examiner digitized the reference points according to defined landmarks, and the designated size component was superimposed to the 3D reconstructed CT model for measurement. In addition to the evaluation of implant position against the coronal and sagittal lower limb mechanical axes that were defined based on bony landmarks, implant position against axes connecting implant-based reference points that are easier to indicate was evaluated.Results: The overall intra- and inter-observer reliabilities determined by the intraclass correlation coefficients (ICC) of the implant alignment measurement for both femoral and tibial components were good for both mechanical and implant-based axes. The difference between implant alignment measurements according to the traditional mechanical axis and the implant-based axis ranged between means of 0.08o and 1.70o and were statistically significantly different.Conclusions: The postoperative evaluation of implant position in the coronal and sagittal planes using 3D-CT image matching is reliable and has good reproducibility. The measured implant position according to the traditional mechanical axis and the implant-based axis were slightly but significantly different.

show abstract

“…Surgical field exposure and soft tissue release play crucial roles in the treatment of valgus knee. The choice of operative approach determines the exposure of the surgical field, and the main approaches to valgus knee surgery include the medial parapatellar approach and the lateral parapatellar approach (4). Soft tissue release mainly refers to the release of lateral tense structures, including the iliotibial band (ITB), lateral collateral ligament (LCL), popliteus tendon (POP), posterolateral capsule (PLC) and lateral patellar retinaculum (5).…”

Section: Introductionmentioning

confidence: 99%

A lateral parapatellar approach with iliotibial band dissection from the Gerdy tubercle for total knee arthroplasty of the valgus knee

Cheng

Zhang

et al. 2020

Exp Ther Med

View full text Add to dashboard Cite

Medial parapatellar approach leads to internal rotation of tibial component in total knee arthroplasty

Abstract: Retrospective comparative study, Level III.

Cited by 19 publications

References 42 publications

No reduced patellar loading with latest-generation cruciate-retaining total knee arthroplasty—a comparative study of Attune and Press-Fit Condylar®

No reduced patellar loading with latest-generation cruciate-retaining total knee arthroplasty—a comparative study of Attune and Press-Fit Condylar®

Intra- and Inter-observer Reliability of Implant Positioning Evaluation on a CT-based Three-dimensional Postoperative Matching System for Total Knee Arthroplasty.

A lateral parapatellar approach with iliotibial band dissection from the Gerdy tubercle for total knee arthroplasty of the valgus knee

Contact Info

Product

Resources

About