K-TEP-Wechsel bei Instabilität: Diagnostik, Therapie und Ergebnisse

Faschingbauer, M.; Reichel, Heiko

doi:10.1007/s00132-021-04179-5

Cited by 4 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Focusing on the aseptic reasons for revision requires mentioning progressing secondary osteoarthritis in case of UKA [16], aseptic loosening or ligament instability [16,23]. Faschingbauer and Reichel mentioned aseptic loosening as the most common reason for aseptic revision in knee arthroplasty with 28% [8]. The problem of wear has decreased significantly in the last few years due to the use of improved polyethylene such poly-2methacryloyloxyethyl phosphorylcholine-grafted highly cross-linked polyethylene [8,15].…”

Section: Introductionmentioning

confidence: 99%

“…Faschingbauer and Reichel mentioned aseptic loosening as the most common reason for aseptic revision in knee arthroplasty with 28% [8]. The problem of wear has decreased significantly in the last few years due to the use of improved polyethylene such poly-2methacryloyloxyethyl phosphorylcholine-grafted highly cross-linked polyethylene [8,15]. However, surgical techniques are an aseptic reason for implantassociated instability [8].…”

Section: Introductionmentioning

confidence: 99%

“…The problem of wear has decreased significantly in the last few years due to the use of improved polyethylene such poly-2methacryloyloxyethyl phosphorylcholine-grafted highly cross-linked polyethylene [8,15]. However, surgical techniques are an aseptic reason for implantassociated instability [8]. Ligament instability is the fourth common reason for revisions in primary knee arthroplasty, especially after trauma or severe deformity [5,8].…”

Section: Introductionmentioning

confidence: 99%

“…However, surgical techniques are an aseptic reason for implantassociated instability [8]. Ligament instability is the fourth common reason for revisions in primary knee arthroplasty, especially after trauma or severe deformity [5,8]. Compared to men, women suffer ligament ruptures two to eight times more frequently and anatomical, hormonal, and biomechanical variables are thought to be the reason for an increased knee laxity and higher risk of ligament rupture in women [2,6,9,19].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Unicondylar knee arthroplasty demonstrating a significant increased risk for aseptic revisions compared to unconstrained and constrained total knee arthroplasty: An analysis of aseptic revisions after unicondylar and primary total knee arthroplasty of the German Arthroplasty Registry

Straub,

Szymski,

Walter

et al. 2024

Knee surg. sports traumatol. arthrosc.

View full text Add to dashboard Cite

PurposeDue to ageing population, the implantation rate of total knee arthroplasties (TKAs) is continuously growing. Aseptic revisions in primary knee arthroplasty are a major cause of revision. The aim of the following study was to determinate the incidence and reasons of aseptic revisions in constrained and unconstrained TKA, as well as in unicondylar knee arthroplasties (UKAs).MethodsData collection was performed using the German Arthroplasty Registry. Reasons for aseptic revisions were calculated. Incidence and comparison of aseptic revisions were analysed using Kaplan–Meier estimates. A multiple χ2 test with Holm's method was used to detect group differences in ligament ruptures.ResultsOverall, 300,998 cases of knee arthroplasty with 254,144 (84.4%) unconstrained TKA, 9993 (3.3%) constrained TKA and 36,861 (12.3%) UKA were analysed. Aseptic revision rate in UKA was significantly increased compared to unconstrained and constrained TKA (p < 0.0001). In constrained TKA, a 2.0% revision rate for aseptic reasons were reported after 1 year, while in unconstrained TKA 1.1% and in UKA, 2.7% of revisions were identified. After 7 years in constrained TKA 3.3%, in unconstrained TKA 2.8%, and in UKA 7.8% sustained aseptic revision. Ligament instability was the leading cause of aseptic revision accounting for 13.7% in unconstrained TKA. In constrained TKA, 2.8% resulted in a revision due to ligament instability. In the UKA, the most frequent cause of revisions was tibial loosening, accounting for 14.6% of cases, while progression of osteoarthritis accounted for 7.9% of revisions. Ligament instability was observed in 14.1% of males compared to 15.9% of females in unconstrained TKA and in 4.6% in both genders in UKA.ConclusionIn patients with UKA, aseptic revision rates are significantly higher compared to unconstrained and constrained TKA. Ligament instability was the leading cause of aseptic revision in unconstrained TKA. In UKA, the most frequent cause of revisions was tibial loosening, while progression of osteoarthritis was the second most frequent cause of revisions. Comparable levels of ligament instability were observed in both sexes.Level of EvidenceLevel III, cohort study.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unicondylar knee arthroplasty demonstrating a significant increased risk for aseptic revisions compared to unconstrained and constrained total knee arthroplasty: An analysis of aseptic revisions after unicondylar and primary total knee arthroplasty of the German Arthroplasty Registry

Straub,

Szymski,

Walter

et al. 2024

Knee surg. sports traumatol. arthrosc.

View full text Add to dashboard Cite

show abstract

“…In the knee joint, four major ligaments, the anterior cruciate ligament (ACL), the posterior cruciate ligament (PCL), the lateral collateral ligament (LCL), and the medial collateral ligament (MCL), altogether play very important roles in knee stability and kinematics. Inadequate correction of soft tissue imbalances, unbalanced flexion–extension gaps, and knee instability after primary TKA are major contributing factors to early TKA failures 7,8 . While the LCL and MCL are kept intact to maintain joint stability in knee arthroplasty, the ACL is usually removed regardless of whether it is a posterior‐stabilized (PS) or cruciate‐retaining (CR) knee prosthesis.…”

Section: Introductionmentioning

confidence: 99%

Effect of Posterior Cruciate Ligament Resection on Gap Balancing in Robot‐assisted Total Knee Arthroplasty

Zhu,

Wang,

Dai

et al. 2024

Orthopaedic Surgery

View full text Add to dashboard Cite

ObjectiveRetention or sacrifice of the posterior cruciate ligament (PCL) is one of the most controversial issues while performing total knee arthroplasty (TKA). This study aimed to evaluate the impact of PCL resection on flexion–extension gaps, femoral component rotation, and bone resection amounts during robot‐assisted TKA.MethodsThis prospective study included 40 patients with knee osteoarthritis who underwent robot‐assisted posterior‐stabilized (PS) TKA between September 2021 and February 2022. Of the patients, 75% were women (30/40) with a mean age and BMI of 72.6 years and 27.4 kg/m2, respectively. The guidance module and camera stand assembly were used to capture gaps before and after PCL resection. Measurements of femoral component rotation and bone resection amounts were made in cruciate‐retaining (CR) TKA mode and PS‐TKA mode.ResultsAfter PCL resection, the mean change in the medial and lateral compartments of flexion gaps increased by 2.0 and 0.6 mm, respectively (p < 0.001). Compared with the CR‐TKA mode group, the bone resection amounts of the medial posterior condyle and the lateral posterior condyle in the PS‐TKA mode group decreased by 2.0 ± 1.1 and 1.1 ± 1.1 mm, respectively, and the external rotation of the femoral prosthesis relative to the posterior condylar axis and trans‐epicondylar line was reduced by 1.0° ± 1.3° and 1.2° ± 1.6°, respectively (p < 0.001).ConclusionThe release of the PCL did not affect the extension gap, but significantly increased the flexion gap. Moreover, the increases in the medial flexion gap were greater than those of the lateral flexion gap. After PCL resection, less external rotation of the femoral prosthesis and fewer bone cuts of the posterior femur were needed in PS‐TKA.

show abstract

Unikondyläre Knieendoprothesen zeigen ein signifikant erhöhtes Risiko für aseptische Revisionen im Vergleich zu ungekoppelten und gekoppelten TKA

Straub,

Szymski,

Walter

et al. 2024

Orthopädie

View full text Add to dashboard Cite

K-TEP-Wechsel bei Instabilität: Diagnostik, Therapie und Ergebnisse

Cited by 4 publications

References 22 publications

Unicondylar knee arthroplasty demonstrating a significant increased risk for aseptic revisions compared to unconstrained and constrained total knee arthroplasty: An analysis of aseptic revisions after unicondylar and primary total knee arthroplasty of the German Arthroplasty Registry

Unicondylar knee arthroplasty demonstrating a significant increased risk for aseptic revisions compared to unconstrained and constrained total knee arthroplasty: An analysis of aseptic revisions after unicondylar and primary total knee arthroplasty of the German Arthroplasty Registry

Effect of Posterior Cruciate Ligament Resection on Gap Balancing in Robot‐assisted Total Knee Arthroplasty

Unikondyläre Knieendoprothesen zeigen ein signifikant erhöhtes Risiko für aseptische Revisionen im Vergleich zu ungekoppelten und gekoppelten TKA

Contact Info

Product

Resources

About