scholarly journals Distal Patellar Tendon Avulsion Associated with an ACL Tear in a Teenager: A Case Report and Review of the Literature

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Christina Steiger ◽  
Benoit Coulin ◽  
Tanguy Vendeuvre ◽  
Anne Tabard-Fougere ◽  
Giacomo De Marco ◽  
...  
Keyword(s):  
Patellar Tendon ◽  
Femoral Condyle ◽  
High Energy ◽  
Review Of The Literature ◽  
Valgus Stress ◽  
Bone Bruises ◽  
Complete Tear ◽  
Primary Acl Reconstruction ◽  
Tendon Avulsion ◽  
Strong Suspicion

Distal patellar tendon avulsions are rare injuries in healthy individuals, and to date, no case affecting skeletally mature teenagers and adolescents has been reported. In the majority of cases, distal patellar tendon avulsions are associated with severe intra-articular knee lesions, signifying a high-energy trauma. We present the case of a 15.5-year-old female who was admitted to the emergency department after a knee injury. The mechanism of injury was a combination of landing after a jump off a scooter and sudden deceleration with a fixed foot. Lateral radiographs revealed a distal patellar tendon avulsion. An MRI was conducted to accurately diagnose concomitant lesions. The MRI revealed a complete tear of the ACL, and associated bone bruises on the lateral femoral condyle, and also on the posterolateral tibial plateau. A knee joint exam under general anesthesia demonstrated good stability during valgus stress testing and only a grade 1 positive Lachman test. Therefore, we decided to only reconstruct the extensor mechanism and to abstain from a primary ACL reconstruction. The presented case and review of the literature demonstrate the clinical relevance of this atypical lesion. In fact, a distal patellar tendon avulsion after physeal fusion of the proximal tibia should raise a strong suspicion of severe associated intra-articular knee lesions and requires prompt MRI investigation. However, controversy still exists regarding the management of these injuries, in particular concerning the question of whether to address both injuries in a single stage or in 2 stages.

Distal patellar tendon avulsion in association with high-energy knee trauma: A case series and review of the literature

The Knee ◽  
2017 ◽  
Vol 24 (2) ◽  
pp. 468-476 ◽  
Author(s):  
Brian Capogna ◽  
Eric Strauss ◽  
Sanjit Konda ◽  
Alan Dayan ◽  
Michael Alaia
Keyword(s):  
Patellar Tendon ◽  
Case Series ◽  
High Energy ◽  
Review Of The Literature ◽  
Knee Trauma ◽  
Tendon Avulsion

scholarly journals Acute Concomitant Anterior Cruciate Ligament and Patellar Tendon Tears in a Non-dislocated Knee

2012 ◽  
Vol 2 ◽  
pp. 3 ◽  
Author(s):  
Robert D. Wissman ◽  
Nathaniel Vonfischer ◽  
Kari Kempf
Keyword(s):  
Anterior Cruciate Ligament ◽  
Patellar Tendon ◽  
Case Reports ◽  
Cruciate Ligament ◽  
High Energy ◽  
Orthopedic Literature ◽  
Tendon Tears ◽  
Anterior Cruciate ◽  
Articular Pathology ◽  
Knee Dislocations

Anterior cruciate ligament (ACL) tears are common and may occur in isolation or with other internal derangements of the joint. Tears of the patellar tendon (PT) occur less frequently and are rarely associated with intra-articular pathology. Acute combined tears of both the ACL and PT are known complications of high-energy traumatic knee dislocations. We present a case of an acute concomitant ACL and PT tears in a low-energy non-dislocated knee. To our knowledge, this injury has only been described in a limited number of case reports in the orthopedic literature. We present the imaging findings of this combined injury and discuss the importance of magnetic resonance (MR) in diagnosis.

Biomechanical Analysis of Thumb Ulnar Collateral Ligament Tear Kinematics

Hand ◽  
2019 ◽  
pp. 155894471986851
Author(s):  
Charles C. Lin ◽  
Nilay A. Patel ◽  
Yasuo Itami ◽  
Michelle H. McGarry ◽  
Steven S. Shin ◽  
...  
Keyword(s):  
Ulnar Collateral Ligament ◽  
Biomechanical Analysis ◽  
Collateral Ligaments ◽  
Collateral Ligament ◽  
Valgus Stress ◽  
Ligament Tear ◽  
Partial Tear ◽  
Complete Tear ◽  
Valgus Instability ◽  
The Stability

Background: Thumb ulnar collateral ligament (UCL) injuries are common, but the kinematics of these injuries have not been comprehensively described, especially regarding kinematic changes with progressive UCL injury. Methods: Eleven cadaveric thumbs underwent kinematic testing under 4 conditions: intact, partial tear (50%) of the proper UCL, full tear of the proper UCL, and complete tear of both the proper and accessory UCL. Kinematic testing parameters included varus/valgus stress, pronation/supination, and volar/dorsal translation at −10 degree, 0 degree, 15 degree, and 30 degree of metacarpophalangeal flexion. Results: Partial tear of the proper UCL did not result in significant increases in laxity in any direction compared with intact ( P ≥ .132). Full tear of the proper UCL resulted in a significant increase in valgus angulation (18.8° ± 1.7° vs 11.5° ± 1.5°; P = .024) and pronation (15.4° ± 2.5° vs 12.6° ± 2.3°; P = .034) at 30 degree of flexion relative to intact. Complete tear of both the proper and accessory collateral ligaments resulted in increased valgus angulation at all degrees of flexion ( P < .001). Complete tear also resulted in a significant volar translation at 0 degree, 15 degree, and 30 degree of flexion ( P ≤ .016). Conclusion: Partial tear of the proper UCL does not significantly affect the stability of the joint, but full tear of the proper UCL increases valgus instability at 30 degree of flexion. Complete tear of the UCL is necessary for increased varus/valgus instability at all degrees of flexion and results in significant increases in pronation/supination and volar translation.

scholarly journals Unusual Closed Traumatic Avulsion of Both Flexor Tendons in Zones 1 and 3 of the Little Finger

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Marie-Aimée Päivi Soro ◽  
Thierry Christen ◽  
Sébastien Durand
Keyword(s):  
Rare Condition ◽  
Flexor Digitorum Profundus ◽  
Flexor Digitorum Superficialis ◽  
Review Of The Literature ◽  
Flexor Tendons ◽  
Flexor Digitorum ◽  
Tendon Avulsion ◽  
Little Finger

Closed tendon avulsion of both flexor tendons in the same finger is an extremely rare condition. We encountered the case of a patient who presented a rupture of the flexor digitorum profundus in zone 1 and flexor digitorum superficialis in zone 3 in the little finger. This occurrence has not been reported previously. We hereby present our case, make a review of the literature of avulsion of both flexor tendons of the same finger, and propose a treatment according to the site of the ruptures.

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