Abstract
Purpose
Both surgeons and patients want to achieve a high level of satisfaction and the best
possible functional results within a short time after knee TEP surgery. By using a
tool that digitally records various measurement parameters of balance and motor function
preoperatively and postoperatively on a mobile basis and with little time expenditure,
progressive results can be compared. Individual factors can thus be determined and
these can influence the progress in regeneration and training progress perioperatively.
Methods
In a prospective study, 100 patients before and 66 patients after installation of
a cement-retained knee TEP were evaluated for the following parameters: balance, maximum
strength, and power. All measurements were performed with the KMP measurement platform
from MotoSana. The second measurements were performed in each case after a standardised
follow-up treatment.
Results
It was shown that there are significant relationships between personal factors such
as age, height, body weight and with baseline values and performance measures: maximum
strength and power. Furthermore, it was shown that postoperative improvement could
be achieved for the most part around balance support. All patients who previously
had to hold on with one hand or both hands no longer needed support after surgery
to maintain the single-leg stance for the specified time of 15 s. For a more detailed
analysis of the balance parameters, the samples were adjusted and only the patients
who did not hold on for support pre- and postoperatively were counted. In patients
with low and medium initial stance, the sway area increased at the second measurement
session, and in patients with large sway areas, it decreased, and the stance became
more stable. In the area of maximum strength and power, patients with high baseline
values still had higher values after AHB compared with the
other patients, but lower values compared with their own baseline values.
Conclusion
Patients who already had very good motor skills before surgery were able to achieve
a greater increase in motor skills compared to the weaker group. However, all patients
failed to reach their preoperative baseline values after completion of the AHB. Deficits
in balance were still detectable in all groups. By using the presented force plate,
measurement-based coordinated rehabilitation procedures are possible during and after
completion of the AHB. Rehabilitation with individualised improvement of balance and
motor function could be expected to prevent dissatisfaction after knee arthroplasty,
e.g. due to muscular imbalance in femoropatellar pain syndromes.
Keywords
motor-proprioceptive abilities - pre- and postoperative comparison - gonarthrosis
