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Evaluation of Stem Cell Therapies in a Bilateral Patellar Tendon Injury Model in Rats

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Ossified proximal patellar tendon rupture.

Vishwas Hosur Ravishankar¹, Khaldoun El Abed², Riaz Ahmad²

¹Orthopaedics, Weston General Hospital, Weston-super-Mare, UK vishwas.ravishankar@nhs.net.

BMJ Case Reports

|July 18, 2020

Summary

This summary is machine-generated.

This case report details a rare ossified proximal patellar tendon rupture in an active individual. Surgical repair was successful, highlighting the role of tendinopathy in tendon ruptures.

Keywords:

knee injuries orthopaedic and trauma surgery tendon rupture

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Area of Science:

Orthopedic surgery
Sports medicine
Musculoskeletal pathology

Background:

Extensor mechanism injuries, including patellar tendon ruptures, are common in young, active individuals.
Pathological changes in the patellar tendon, such as hypoxic tendinopathy and mucoid degeneration, can predispose it to rupture.
Ruptures often occur due to forced eccentric contraction against a flexed knee.

Observation:

A rare case of ossified proximal patellar tendon rupture is presented in a fit skittle player who sustained an indirect knee injury.
Rupture was confirmed via clinical examination and radiographic imaging.
Intraoperative findings revealed ossification of the ruptured proximal patellar tendon.

Findings:

The ossified proximal patellar tendon was surgically repaired using Krackow sutures and a JuggerKnot suture anchor.
The repair was augmented with Leeds Keil tape for enhanced stability.
Postoperative management involved knee bracing in extension with a progressive range of motion protocol.

Implications:

This case supports the hypothesis that underlying patellar tendon pathology, including ossification, is a significant factor in tendon ruptures.
Highlights the importance of considering tendinopathy in the differential diagnosis of extensor mechanism injuries.
Demonstrates a successful surgical technique for repairing complex patellar tendon ruptures with ossification.