Abstract
The purpose of the present study was to evaluate the characteristics of the discoid lateral meniscus in patients more than forty years of age. We studied whether a torn discoid lateral meniscus that has no treatment until middle age would increase the tendency of the knee to develop a varus deformity and investigated the correlation between torn discoid lateral meniscus and osteoarthritis. Methods: We retrospectively reviewed the records for 164 knees in 158 patients who were more than forty years old and who underwent a knee arthroscopic procedure from 1992 to 2007. The mean age at the time of surgery was fifty-two years. Comparative evaluation of the clinical and radiographic differences between the eighty-four patients with torn discoid lateral meniscus (Group A) and the seventy-four patients with a torn normally shaped lateral meniscus (Group B) was carried out. Results: Preoperative standing anteroposterior radiographs, which were made for all patients, showed that varus deformity was more common in Group A than in Group B and that osteoarthritic changes in both the medial and lateral compartments were also more common in Group A. With regard to chondral injury, Outerbridge grade-3 or 4 involvement was identified in 46% of the knees in Group A and 18% of the knees in Group B. Conclusions: In the present study of middle-aged patients, those with a torn discoid lateral meniscus had a higher prevalence of varus knee deformity and a higher prevalence of osteoarthritis. Knees with a discoid lateral meniscus that have diminished valgus alignment should be monitored carefully with long-term follow-up because a discoid lateral meniscus may increase the risk for progression to degenerative knee osteoarthritis. Level of Evidence: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.
| Original language | English |
|---|---|
| Pages (from-to) | 2008-2014 |
| Number of pages | 7 |
| Journal | Journal of Bone and Joint Surgery - Series A |
| Volume | 95 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2013 Nov 20 |
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ASJC Scopus subject areas
- Surgery
- Orthopedics and Sports Medicine
Cite this
Does torn discoid meniscus have effects on limb alignment and arthritic change in middle-aged patients? / Kim, Seung Ju; Bae, Ji Hoon; Lim, Hong Chul.
In: Journal of Bone and Joint Surgery - Series A, Vol. 95, No. 22, 20.11.2013, p. 2008-2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Does torn discoid meniscus have effects on limb alignment and arthritic change in middle-aged patients?
AU - Kim, Seung Ju
AU - Bae, Ji Hoon
AU - Lim, Hong Chul
PY - 2013/11/20
Y1 - 2013/11/20
N2 - The purpose of the present study was to evaluate the characteristics of the discoid lateral meniscus in patients more than forty years of age. We studied whether a torn discoid lateral meniscus that has no treatment until middle age would increase the tendency of the knee to develop a varus deformity and investigated the correlation between torn discoid lateral meniscus and osteoarthritis. Methods: We retrospectively reviewed the records for 164 knees in 158 patients who were more than forty years old and who underwent a knee arthroscopic procedure from 1992 to 2007. The mean age at the time of surgery was fifty-two years. Comparative evaluation of the clinical and radiographic differences between the eighty-four patients with torn discoid lateral meniscus (Group A) and the seventy-four patients with a torn normally shaped lateral meniscus (Group B) was carried out. Results: Preoperative standing anteroposterior radiographs, which were made for all patients, showed that varus deformity was more common in Group A than in Group B and that osteoarthritic changes in both the medial and lateral compartments were also more common in Group A. With regard to chondral injury, Outerbridge grade-3 or 4 involvement was identified in 46% of the knees in Group A and 18% of the knees in Group B. Conclusions: In the present study of middle-aged patients, those with a torn discoid lateral meniscus had a higher prevalence of varus knee deformity and a higher prevalence of osteoarthritis. Knees with a discoid lateral meniscus that have diminished valgus alignment should be monitored carefully with long-term follow-up because a discoid lateral meniscus may increase the risk for progression to degenerative knee osteoarthritis. Level of Evidence: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.
AB - The purpose of the present study was to evaluate the characteristics of the discoid lateral meniscus in patients more than forty years of age. We studied whether a torn discoid lateral meniscus that has no treatment until middle age would increase the tendency of the knee to develop a varus deformity and investigated the correlation between torn discoid lateral meniscus and osteoarthritis. Methods: We retrospectively reviewed the records for 164 knees in 158 patients who were more than forty years old and who underwent a knee arthroscopic procedure from 1992 to 2007. The mean age at the time of surgery was fifty-two years. Comparative evaluation of the clinical and radiographic differences between the eighty-four patients with torn discoid lateral meniscus (Group A) and the seventy-four patients with a torn normally shaped lateral meniscus (Group B) was carried out. Results: Preoperative standing anteroposterior radiographs, which were made for all patients, showed that varus deformity was more common in Group A than in Group B and that osteoarthritic changes in both the medial and lateral compartments were also more common in Group A. With regard to chondral injury, Outerbridge grade-3 or 4 involvement was identified in 46% of the knees in Group A and 18% of the knees in Group B. Conclusions: In the present study of middle-aged patients, those with a torn discoid lateral meniscus had a higher prevalence of varus knee deformity and a higher prevalence of osteoarthritis. Knees with a discoid lateral meniscus that have diminished valgus alignment should be monitored carefully with long-term follow-up because a discoid lateral meniscus may increase the risk for progression to degenerative knee osteoarthritis. Level of Evidence: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.
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U2 - 10.2106/JBJS.L.01384
DO - 10.2106/JBJS.L.01384
M3 - Article
VL - 95
SP - 2008
EP - 2014
JO - Journal of Bone and Joint Surgery - Series A
JF - Journal of Bone and Joint Surgery - Series A
SN - 0021-9355
IS - 22
ER -