Case study of working dog Pico, 14-week-old Malinois

Initial Situation

The puppy Pico was introduced to our practice so that the build-up to a working dog could proceed without problems. Another goal was to develop the training more efficiently.

First examination

The first examination already showed a complex gait pattern. Pico cannot walk straight, the right hind quarters always go into a right outward position. In addition, the right hind limb bends. In movement there is a clear, strong swaying to both sides. Additionally relevant is a tucked up croup, a tendency to limp front-left as well as the gait of the left shoulder limb in general, which is broad-legged to circular. 

Basically, the gait is irregular and abrupt, the hindquarters are heavy and not symmetrical.

This gait pattern is special, but unfortunately not rare in the puppies that come to the practice. It is always pathological and forms the basis for a pass gait. This pattern forms the centralisation of a later gait pattern if it is not recognised and corrected early. 

Orthopaedic examination

The orthopaedic examination shows symmetrical knees and ankle joints. The left femur is displaced downwards and backwards, which clearly restricts its mobility. In addition, there is an abaxial rotation of the left pelvis, which corresponds to a pelvic low position there. The sacral region also has reduced mobility. The sensitivity of the examined anatomical regions is remarkable. Last but not least, the left shoulder is also limited in its mobility, and its axial rotation also stands out, which causes the limping there.

The findings of the orthopaedic examination were supported by the kinematic measurement.


Kinematic measurement


The kinematic measurement shows a difference in stride length between the left and right pelvic limb of 10 cm, which is striking. Furthermore, the stance phase and the range of motion show only slight differences, while the PVF in the hindquarters shows no difference at all. The left shoulder has a reduced acceleration, which indicates a pull move to compensate for the instability of the hindquarters. In general, altered values are present but not dramatic. There is no evidence of structural pathology or hip dysplasia. Therefore, an X-ray study was not performed.

Stance phase, initial measurement
Maximum amplitude of the gyroscope signal, initial measurement
Vertical peak force, initial measurement
Step length

Orthopaedic-manual treatment

Orthopaedically, the malposition in the pelvis now had to be corrected manually.

Kinematic control measurement

After the manual treatment, Pico was again kinematically measured and controlled.

After the treatment, a symmetrisation of the pelvis kinematically took place; however, this was not completed because the malposition in the pelvis on the left side had already led to compensation of the movement in the left shoulder.

Overall, there are clear improvements, so that the further build-up could be planned.

Stance phase, second measurement
Maximum amplitude of the gyroscope signal, second measurement
Peak Vertical Force, second measurement

Visual results

The visual gait pattern after the orthopaedic-manual treatment is a clear improvement: Pico shows good movement in the trail, the instability of the hindquarters has practically normalised. The swaying as well as the buckling of the hindquarters is no longer visible and the lameness of the left shoulder disappeared. The whole movement now appears round, harmonious and fluid.

Folgetherapie

Now the targeted development of the movement and the musculature can begin. Without this correction, Pico would only have built up the musculature incorrectly and, above all, too little and the altered gait pattern would have manifested itself peripherally as well as centrally in the motor cortex in the brain. This would have been detrimental to Pico’s use as a working dog.

Watch Pico’s case also as a video:


For more information on kinematic gait analysis and the correct build-up of puppies, take a look at our book “LUPOMOVE® PUPPY – THE INNOVATIVE DEVELOPMENT AND PROPHYLAXIS PROGRAMME FOR PUPPIES”.

Case Study of Camila, 10 week old Australian Shepherd Puppy

Initial situation

Camila, Australian Sheperd, 10 weeks old, has a left front limp.

Camila fell several times from an elevation; the first limp normalised after 2 hours, but after the second fall the irregular gait persisted.

Therefore the owner came to see us the following day.

Examination

The puppy walks relatively tight in the forehand. Especially the left shoulder joint is turned into an inside position, which causes a toe tight gait. Also the limb axis is oblique. At the top it is slightly turned outwards, at the bottom it is turned inwards. 

The space grip of the left shoulder limb is reduced, as also visible on the movement guided from the side. The movement of the left shoulder limb appears broken, the hovering phase is shortened.

Camila walks with the hindquarters out to the left, which reinforces the lameness and limping on the left front. 

As no structural changes to the bones were apparent, a radiological study of the left shoulder limb mass was not performed.

Kinematic study

We used the measuring jacket and our gait analysis system to check the treatment and quantified values. You can see the findings in the following graphs.

Light blue are the findings before the orthopaedic biomechanical kinematic controlled manual treatment, dark blue those afterwards.

It is noticeable that especially the stance phase as well as extension and flexion have improved significantly. Also the gyroscope values; the angular accelerations of the limb have changed. After the orthopaedic treatment, the findings are symmetrical. In concrete terms, this means that Camila can put relatively normal weight on the left shoulder limb again.

Stance Phase
Extension / Flexion

The orthopaedic biomechanical manual treatment regulates the statics and dynamics of the limbs and the spine. The goal is the physiological (normal) function of the joints as well as goal-directed movement. 

Furthermore, this movement should be possible without inflammation or pain. A limp in a dog is always an indication that the movement is not normal; due to faulty mechanics or inflammation and pain.

In Camila’s case, we set up a movement plan for 14 days following the treatment and then checked her values again (purple).

The video sequence shows a smooth, round movement. Both the shoulder and pelvic limbs moved actively and expansively, the position of the left shoulder limb mass was practically normal. The only noticeable thing was that in the sitting position, the left shoulder limb mass was placed slightly forward. 

Our new kinematic measurement (violet) showed an altered extension and flexion. It has to be taken into account that the puppy grows daily, so a slight discrepancy in the values of individual features is to be expected.

Extension / Flexion, third measurement

In conclusion

Unfortunately, it happens very often that a puppy falls off sofas, boxes or small walls. The coordination is still lacking in the young dog, the stability and strength of the pelvic limb and the musculature is not yet developed.

If these cases are not orthopaedically biomechanically examined and treated, this can have major consequences, especially in the hip area.

But shoulder pathologies and lameness are also common; they can even often persist despite treatment. The reason is the altered biomechanics of the shoulder – the range of freedom. This must also be put in the context of OCD – Osteochondrosis.

We will dedicate a separate webinar to this topic: Prevention with the LupoMove® programme focusing on shoulder and hip disorders in puppies and young dogs. For more information on cartilage regeneration, recommend our book “LupoMove® sports, works and family” for a detailed explanation.

Watch Camila’s case also as a video:


For more information on kinematic gait analysis and the correct build-up of puppies, take a look at our book “LUPOMOVE® PUPPY – THE INNOVATIVE DEVELOPMENT AND PROPHYLAXIS PROGRAMME FOR PUPPIES”.

New Publication in “Veterinary and Animal Science”

We are thrilled to announce the publication of the scientific paper “Extraction of Canine Gait Characteristics using a Mobile Gait Analysis System based on Inertial Measurement Units”.  

In this groundbreaking study, algorithms were tested to analyse measurements taken by sensors on a running dog. The results prove the effectiveness of gait analysis systems, and after the peer-review, leads the way to further research as well practical application in the field of canine orthopaedics.

Together with the Institute for Medical Engineering and Medical Informatics of the University of Applied Sciences Northwestern Switzerland, namely M. Altermatt, D. Kalt and E. Schkommodau, Dr. Blättler-Monnier succeeded in measuring various values reproducible, such as the range of motion of the limb or the flexion/extension of individual joints. This has laid the foundation for a new way of treating dogs orthopaedically in the best possible way and carrying out simple progress checks: With a focus on prophylaxis, non-invasive methods and individual solutions.

“This study shows that even simple algorithms can extract relevant gait features such as range of motion, stance phase and swing phase from inertial measurements. The results are comparable to other, more sophisticated approaches. […]“ 

Source: M. Altermatt, D. Kalt, P. Blättler, E. Schkommodau: Extraction of Canine Gait Characteristics using a Mobile Gait Analysis System based on Inertial Measurement Units. In:  Veterinary and Animal Science 21/2023, Pp. 1-5.

Take a look in the prestigious journal “Veterinary and Animal Science”, issue 21/2023, where we will share the full details of our study’s methodology, results, and implications. 

Help us spread the word! Share this exciting news with your fellow veterinarians, dog enthusiasts, and anyone passionate about advancing our understanding of canine gait analyses.