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Erschienen in:
01.03.2010 | Arthroscopy and Sports Medicine
Effect of partial medial meniscectomy on the proprioceptive function of the knee
Erschienen in: Archives of Orthopaedic and Trauma Surgery | Ausgabe 3/2010
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Introduction
The aim of this study was to assess the proprioception of the partial meniscectomized knee and to assess if there is an effect on the knee proprioception.
Materials and methods
We performed a case–control study involving patients with meniscus tear at the posterior horn of medial meniscus. Group 1 composed of 19 patients, with an average age of 26.3 years, who were enrolled after sustaining an injury to the medial meniscus. Twenty healthy individuals, with an average age of 25.1, without history of knee injury, constituted Group 2. In order to document the proprioceptive capabilities of the knee, angle reproduction tests were performed.
Results
At a mean of 2 years after the surgery, there was no difference between the meniscectomized and healthy knee regarding the angle deviations in the lower flexion angles (15°, 30°, 45°). However, mean knee joint position sense (KJPS) at 60° reproduction in Group 1 and 2 was 64.3 (SD 5.3) and 69.2 (SD 4.9), respectively. Concomitantly, mean KJPS at 75° reproduction in Group 1 and 2 were 80.1 (SD 6.59) and 74.4 (SD 5.6), respectively. Paired t test showed a statistically significant difference between Group 1 and 2 when compared to control angle deviations at 60° and 75° reproductions (P < 0.05).
Conclusion
KJPS of the patients in meniscectomized group was poorer than the patients in healthy knee group at 60° and 75° knee flexion degrees. Those results indicated that even a partial absence of menisci causes a deterioration of proprioceptive functions of the knee.