jack pcl brace - albrechtgmbh.com

Jack PCL brace

For a dynamic life

Jack PCL braceDynamic knee orthosis to relieve the PCL

Patente: EP 1 575 464 / EP 1 114 619 / EP 0 841 044 / US 7,309,322 / US 5,954,677 further patents pending

Indications

• PCL ruptures• Partial ruptures and elongations of the PCL

Features

• Constant translation force• Optimised hinge geometry • Smaller hinge with proven features:

- Spring force can be adjusted infinitely and individually - Spring force can be easily increased or reduced at any time - Spring tension can be switched on and off without tools whilst retaining the set pressure force at the calf shell

- Limitation in 15° increments in extension and flexion - Extension limitation 0° / 15° / 30° / 45° - Flexion limitation 60° / 75° / 90° / 105° / 120° - ROM possible from 0° to 120° - temporary immobilisation possible

• Optimised shell and strap system: - High level of wearing comfort due to breathable, lightweight aluminium thigh shells

- High flexibility due to adjustable, customisable thigh shells - Extended size system, incl. paediatric sizes - Modular elements that can be combined with one another - Anatomically shaped tibia shell to improve pressure distribution

- Strap system can be adjusted to suit individual requirements - Easy handling and high level of wearing comfort

Advantages of the Jack PCL

Functional RehabilitationIn line with albrecht‘s philosophy of Funktionelle Rehabilitation, the Jack PCL allows for functional rehabilitation. Extensive immobilisation of the knee can be avoided and an early return to everyday life is supported.

Controllable Translation ForceThe anterior directed translation force on the tibia is independent of the extension and flexion. The tibia is held in the correct position in relation to the femur during the full range of motion. Extensive pressure in flexion and resulting compression of the calf is avoided.

Disengagement of Rotation and TranslationThe translation force is independent of the rotation in the knee, so that co-axial alignment of the hinges to the knee joint is unnecessary. Therefore the brace can be fitted easily and the hinges leave enough space in case of swelling after trauma or surgery.

Treatment of Other InjuriesThe controllable translation force can be set to avoid extensive pressure on the tibia. Therefore the Jack PCL can be used in case of a combined PCL and ACL injury. The long levers of the upper thigh shell can be set using a bending iron in valgus position in case of a posterolateral injury or in varus in case of an additional MCL injury.

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The Jack PCL PrincipleDynamic knee orthosis to relieve the PCL

The Jack PCL Principle

The ProblemFollowing PCL injuries the strain on the ligament in rehabilitation is high. Often an elongation of the PCL can be observed and leads to chronical knee instability.

The Goal To avoid an elongation of the PCL the posterior drawer position of the knee must be avoided.

The Solution The Jack PCL brace helps avoid the posterior drawer position. An anterior directed force on the tibia secures the PCL. The brace is based on an disengagement of rotation and translation so that the tibia is held in the correct position during extension and fl exion. The PCL is secured over the entire ROM and functional rehabilitation can take place without risking an instability of the knee.

Mode of Operation

The Jack PCL brace overcomes the gravity of the lower leg to relieve the posterior cruciate ligament. The anterior directed translation force ensures that the posterior drawer position is avoided. The translation force may be adjusted to the leg and weight of the patient through setting the tension on both sides of the brace. Hereby the detrimental effects of the muscle and gravitational forces can be counteracted.

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Jack PCL – sizes and modulesDynamic knee orthosis to relieve the PCL

• Further sizes available on request

Art.-No. Shell set calf PCL left right

831LL-L Shell set calf PCL L/LLength: 34 cm Circumference: 40 - 48 cm

•831LL-R •831LM-L Shell set calf PCL L/M

Length: 32 cm Circumference: 33 - 40 cm•

831LM-R •831LS-L Shell set calf PCL L/S


831LS-R •831ML-L Shell set calf PCL M/L


831ML-R •831MM-L Shell set calf PCL M/M


831MM-R •831MS-L Shell set calf PCL M/S


831MS-R •831SXS-L Shell set calf PCL X/S

Length: 24 cm Circumference: 22 -27 cm•

831SXS-R •

size length upper thigh shell medial length calf shell circumference

upper thighcircumference

calfArt.-No.

leftArt.-No.

right

L/L 23 - 25,5 cm 34 cm 36 - 66 cm 40 - 48 cm 885LL-L 885LL-R

L/M 23 - 25,5 cm 32 cm 36 - 66 cm 33 - 40 cm 885LM-L 885LM-R

L/S 23 - 25,5 cm 31 cm 36 - 66 cm 27 - 33 cm 885LS-L 885LS-R

LM/S 23 - 25,5 cm 31 cm 33 - 43 cm 27 - 33 cm 885LMS-L 885LMS-R

M/L 18,5 - 21 cm 29 cm 36 - 66 cm 40 - 48 cm 885ML-L 885ML-R

M/M 18,5 - 21 cm 27 cm 36 - 66 cm 33 - 40 cm 885MM-L 885MM-R

M/S 18,5 - 21 cm 26 cm 36 - 66 cm 27 - 33 cm 885MS-L 885MS-R

S/XS 17,5 - 20 cm 24 cm 30 - 40 cm 22 - 27 cm 885SXS-L 885SXS-R

Size chart and article numbers

Modules for individual assembly

Art.-No. Hinge set PCL application left right

870-300-LHinge set PCL L L/L, L/M, L/S, LM/S

•

870-300-R •

870-310-LHinge set PCL M M/L, M/M, M/S

•

870-310-R •

870-320-LHinge set PCL S S/XS

•

870-320-R •

Art.-No. Shell set upper thigh PCL left right

830L-L Shell set upper thigh LLength: 23 - 25,5 cm Circumference: 36 - 66 cm

•830L-R •830LM-L Shell set upper thigh LM

Length: 23 - 25,5 cm Circumference: 33 - 43 cm•

830LM-R •830M-L Shell set upper thigh M

Length: 18,5 - 21 cm Circumference: 36 - 66 cm•

830M-R •830S-L Shell set upper thigh S

Length: 17,5 - 20 cm Circumference: 30 - 40 cm•

830S-R •

• Further sizes available on request

This product is also available in pediatric sizes


The development of the Jack PCL

Traditionally injuries to the PCL have been treated surgically. Even with sophisticated surgical tech-niques, an elongation of the PCL could be observed post-surgery. The result was chronic knee instability. Gravity and biomechnical forces were identifi ed as root causes.

In the 90s Prof. Jakob, one of the foremost experts in the fi eld of knee orthopaedics, ventured to de-velop a mechanism for the rehabilitation of the PCL. Initially, the PCL was stabilised with an external fi xation. To increase patient compliance a brace-based solution was developed with albrecht.

Prototypes based on wires increased the anterior force on the tibia in fl exion. Thromboembolic com-plications and ROM defi cits were the result.

To mitigate the issues and guarantee functional rehabilitation the anterior force on the tibia was disengaged from the axis of rotation. The patented spring-based mechanism guarantees a constant, anterior directed translation force during ex-tension and fl exion. The PCL is secured during the full range of motion.

The clinical relevance of the Jack PCL was demon-strated in „Acute isolated injury of the posterior cruciate ligament treated by a dynamic anterior drawer brace“ by Jacobi et al and published in The Journal of Bone and Joint Surgery in 2010.

In 2017 albrecht presented the new generation of the Jack PCL.


Made in GermanyHergestellt in Deutschland

www.albrechtgmbh.com

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Jack PCL-en 0320

P H O N E + 4 9 ( 0 ) 8 0 5 1 9 6 1 2 9 - 0 • FA X + 4 9 ( 0 ) 8 0 5 1 9 6 1 2 9 - 3 0 • I N F O @ A L B R E C H T G M B H . C O M • W W W. A L B R E C H T G M B H . C O M

jack pcl brace - albrechtgmbh.com

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