In vivo knee rotational stability 2 years after the ACL reconstruction using a quadriceps tendon graft with bone block and bone–patellar tendon–bone graft

Komzák, Martin; Hart, Radek; Náhlík, David; Vysoký, Robert

doi:10.1007/s00402-021-04195-2

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…The treatment strategy of the patient in current case started in the light of her primary confirmed diagnosis, but an unsuccessful outcome after conservative and surgical management had led us to find out the real cause of the snapping. Snapping could be caused by lateral rotational instability resulting from lateral meniscal pathology, which could be treated with anterolateral ligament reconstruction (6). But the physical examination was negative for rotational instabilities.…”

Section: Discussionmentioning

confidence: 99%

A Rare Cause of Lateral Snapping Knee in a 14-Year-Old Female Patient: Popliteus Tendon

Hancıoğlu¹,

Bilgin²

2022

Acta Chir. orthop. Traum. Cech.

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With this case report, we introduced a rare and commonly overlooked cause of lateral snapping knee, a snapping popliteus in a 14-year-old female patient. She was initially treated for a lateral discoid meniscus, a common diagnosis in this age group. Because of the non-resolving symptoms, a second-look arthroscopy was performed and showed a popliteus tendon snapping over a tubercle on the lateral femoral condyle. Resection of the tubercle resulted with a successful outcome. In evaluating the snapping knee in young children, popliteus tendon should be kept in mind.

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Section: Discussionmentioning

confidence: 99%

A Rare Cause of Lateral Snapping Knee in a 14-Year-Old Female Patient: Popliteus Tendon

Hancıoğlu¹,

Bilgin²

2022

Acta Chir. orthop. Traum. Cech.

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“…Different positions, shapes and quantities of bone tunnels have also been used to achieve anatomic and non-anatomic reconstructions of the bone insertions ( Yao et al, 2012 ; Wang et al, 2020b ; Cheng et al, 2021 ; Cheng et al, 2022 ). Clinical outcomes have been reported to be good to excellent at 2 years post-surgery ( Komzak et al, 2021 ). However, the long-term outcome of reconstruction is less encouraging, with a high incidence of secondary knee osteoarthritis (OA) at 14 years after surgery ( Barenius et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Hourglass-shaped grafts are superior to conventional grafts for restoring knee stability and graft force at knee flexion angle of 30° following anterior cruciate ligament reconstruction: A finite element analysis

Wang

Fang

Tao

et al. 2022

Front. Bioeng. Biotechnol.

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Background: Anterior cruciate ligament reconstruction (ACLR) using a generally columnar graft is considered the gold standard for treating anterior cruciate ligament ruptures, but such grafts cannot replicate the geometry and mechanical properties of the native anterior cruciate ligament.Purpose: To evaluate the effectiveness of an innovative hourglass-shaped graft versus a traditional columnar graft for restoring joint stability and graft force, while avoiding notch impingement following anterior cruciate ligament reconstruction.Methods: Finite element models of a human knee were developed to simulate ① An intact state, ② anterior cruciate ligament reconstruction using columnar grafts with different diameters (7.5–12 mm in 0.5 mm increments), ③ anterior cruciate ligament reconstruction using columnar grafts with different Young’s moduli (129.4, 168.0 and 362.2 MPa) and ④ anterior cruciate ligament reconstruction using hourglass-shaped grafts with different Young’s moduli. The knee model was flexed to 30° and loaded with an anterior tibial load of 103 N, internal tibial moment of 7.5 Nm, and valgus tibial moment of 6.9 Nm. The risk of notch impingement, knee stability and graft forces were compared among the different groups.Results: This study found that columnar grafts could not simultaneously restore knee stability in different degree of freedoms (DOFs) and graft force to a level similar to that of the intact knee. The anterior tibial translation and graft force were restored to a near-normal condition when the internal tibial rotation was over-restrained and valgus tibial rotation was lax. A graft diameter of at least 10 mm was needed to restore knee stability and graft force to physiological levels, but such large grafts were found to be at high risk of notch impingement. In contrast, the hourglass-shaped graft was able to simultaneously restore both knee stability and graft force at knee flexion of 30° while also having a much lower risk of impingement.Conclusion: Under knee flexion angle of 30°, an hourglass-shaped graft was better able to restore joint stability and graft force to a near-physiological level than columnar grafts, while also reducing the risk of notch impingement.

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Does an early post traumatic knee brace reduce the incidence of knee rotational instability?

Murgier,

Duthon,

Deygas

et al. 2024

Arch Orthop Trauma Surg

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In vivo knee rotational stability 2 years after the ACL reconstruction using a quadriceps tendon graft with bone block and bone–patellar tendon–bone graft

Cited by 3 publications

References 23 publications

A Rare Cause of Lateral Snapping Knee in a 14-Year-Old Female Patient: Popliteus Tendon

A Rare Cause of Lateral Snapping Knee in a 14-Year-Old Female Patient: Popliteus Tendon

Hourglass-shaped grafts are superior to conventional grafts for restoring knee stability and graft force at knee flexion angle of 30° following anterior cruciate ligament reconstruction: A finite element analysis

Does an early post traumatic knee brace reduce the incidence of knee rotational instability?

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