scholarly journals Biomechanics of the knee extensor mechanism and its relationship to patella tendinopathy: A review

2018 ◽  
Vol 36 (12) ◽  
pp. 3105-3112 ◽  
Author(s):  
Michael Dan ◽  
William Parr ◽  
David Broe ◽  
Mervyn Cross ◽  
William R. Walsh
Keyword(s):  
Knee Extensor ◽  
Extensor Mechanism ◽  
Knee Extensor Mechanism ◽  
Patella Tendinopathy

scholarly journals Iliotibial Band Autograft Provides the Fastest Recovery of Knee Extensor Mechanism Function in Pediatric Anterior Cruciate Ligament Reconstruction

2021 ◽  
Vol 18 (14) ◽  
pp. 7492
Author(s):  
Tishya L. Wren ◽  
Veronica Beltran ◽  
Mia J. Katzel ◽  
Adriana S. Conrad-Forrest ◽  
Curtis D. VandenBerg
Keyword(s):  
Knee Flexion ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Knee Extensor ◽  
Extensor Mechanism ◽  
Iliotibial Band ◽  
Cruciate Ligament Reconstruction ◽  
Mechanism Function ◽  
Anterior Cruciate ◽  
Knee Extensor Mechanism

Iliotibial band autograft is an increasingly popular option for pediatric anterior cruciate ligament reconstruction (ACLR). The purpose of this study was to compare recovery of knee extensor mechanism function among pediatric patients who underwent ACLR using iliotibial band (IT), hamstring tendon (HT), quadriceps tendon (QT), and patellar tendon (PT) autografts. One hundred forty-five pediatric athletes (76 female; age 15.0, range 7–21 years) with recent (3–18 months) unilateral ACLR performed drop-jump landing and 45° cutting with 3D motion capture. Knee extensor mechanism function (maximum knee flexion angle, maximum internal knee extensor moment, energy absorption at knee) during the loading phase (foot contact to peak knee flexion) was compared among graft types (20 IT, 29 HT, 39 QT, 57 PT) and sides (ACLR or contralateral) using linear mixed models with sex, age, and time since surgery as covariates. Overall, knee flexion was significantly lower on the operated vs. contralateral side for HT, QT, and PT during both tasks (p < 0.03). All graft types exhibited lower knee extensor moments and energy absorption on the operated side during both movements (p ≤ 0.001). Kinetic asymmetry was significantly lower for IT compared with QT and PT during both movements (p ≤ 0.005), and similar patterns were observed for HT vs. QT and PT (p ≤ 0.07). Asymmetry was similar between IT and HT and between QT and PT. This study found that knee extensor mechanism function recovers fastest in pediatric ACLR patients with IT autografts, followed by HT, in comparison to QT and PT, suggesting that IT is a viable option for returning young athletes to play after ACLR.

Comparison of adverse events and postoperative mobilization following knee extensor mechanism rupture repair: A systematic review and network meta-analysis

Injury ◽  
2017 ◽  
Vol 48 (12) ◽  
pp. 2793-2799 ◽  
Author(s):  
Joseph Serino ◽  
Amin Mohamadi ◽  
Sebastian Orman ◽  
Brian McCormick ◽  
Philip Hanna ◽  
...  
Keyword(s):  
Systematic Review ◽  
Adverse Events ◽  
Meta Analysis ◽  
Knee Extensor ◽  
Extensor Mechanism ◽  
Knee Extensor Mechanism

scholarly journals Quadriceps reconstruction with suture anchor and Achilles allograft combination in quadriceps tendon re-rupture after primary surgical repair: A novel technique

2021 ◽  
Author(s):  
Erhan Okay ◽  
Mehmet Cenk Turgut ◽  
Abbas Tokyay
Keyword(s):  
Suture Anchor ◽  
Surgical Repair ◽  
Primary Repair ◽  
Full Range ◽  
Knee Extensor ◽  
Quadriceps Tendon ◽  
Extensor Mechanism ◽  
Surgical Options ◽  
Knee Extensor Mechanism

Quadriceps ruptures are one of the pathological conditions of the knee extensor mechanism, accounting for 3% of all tendon injuries. These injuries cause substantial disability of the extensor mechanism. Primary repair is the treatment of choice in acute presentation. In the setting of chronic conditions, the treatment becomes more challenging. Available surgical options include lengthening procedures, and reconstruction with auto graft or allografts. The traditional Scuderi and Codivilla techniques are challenging to perform in degenerative or traumatic retracted ruptures. There is no standard effective treatment in these patients, which yields the best clinical and biomechanical outcomes. An 18 - year-old male patient with quadriceps re-rupture after a primary repair was managed with allograft reconstruction using suture anchors. At six years of follow-up, the patient gained a full range of motion with excellent clinical outcomes. He returned to his previous work. In conclusion, quadriceps reconstruction using suture anchor and Achilles allograft combination is a feasible technique in neglected cases who present with quadriceps tendon re-rupture after primary surgical repair.

Local tendon transfer for knee extensor mechanism reconstruction after soft tissue sarcoma resection

2015 ◽  
Vol 68 (5) ◽  
pp. 729-735 ◽  
Author(s):  
Sebastian Fischer ◽  
Silke Soimaru ◽  
Tobias Hirsch ◽  
Maximilian Kueckelhaus ◽  
Christoph Seitz ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Sarcoma ◽  
Tendon Transfer ◽  
Knee Extensor ◽  
Extensor Mechanism ◽  
Knee Extensor Mechanism

scholarly journals SIMULTANEOUS BILATERAL TEAR OF THE KNEE EXTENSOR MECHANISM IN A PRE-ADOLESCENT: CASE REPORT

2012 ◽  
Vol 47 (5) ◽  
pp. 659-661
Author(s):  
Rodrigo Pires Albuquerque ◽  
Vincenzo Giordano ◽  
Maria Isabel Pires Albuquerque ◽  
Antonio Carlos Pires Carvalho ◽  
Ney Pecegueiro do Amaral ◽  
...  
Keyword(s):  
Case Report ◽  
Knee Extensor ◽  
Extensor Mechanism ◽  
Knee Extensor Mechanism

scholarly journals Moment arms of the knee extensor mechanism in children and adults

2009 ◽  
Vol 215 (2) ◽  
pp. 198-205 ◽  
Author(s):  
Thomas D. O’Brien ◽  
Neil D. Reeves ◽  
Vasilios Baltzopoulos ◽  
David A. Jones ◽  
Constantinos N. Maganaris
Keyword(s):  
Knee Extensor ◽  
Extensor Mechanism ◽  
Moment Arms ◽  
Knee Extensor Mechanism
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