AI Article Synopsis

  • The study investigates how untreated solitary osteochondromas (SO) around the knee affect growth and alignment in children and adolescents, focusing on their potential to cause deformities in the lower extremities.
  • Researchers reviewed data from 111 patients, analyzing factors like lesion location (distal femur or proximal tibia), size, and effects on limb lengths through radiographic measures.
  • Results showed that while SO in the distal femur led to significant shortening of the affected limb compared to the contralateral side, tibial lesions did not have a similar impact, and overall, SOs did not create major deformities.

Article Abstract

Background: There is a lack of information about the effects of untreated solitary osteochondroma (SO) on longitudinal growth of the lower extremities in children and adolescents. This study aimed to assess the coronal alignment and length of the lower extremity in patients with SO around the knee and to identify the factors related to the development of deformities.

Methods: We retrospectively reviewed 111 patients diagnosed with SO around the knee. The patients were classified into 2 groups depending on the location of the SO: 51 in the distal femur and 60 in the proximal tibia. Characteristics of the lesions, such as type, location, size, and distance from the joint line, were determined. Radiographic analysis of the lower limbs included mechanical lateral distal femoral angle, mechanical medial proximal tibial angle, whole-leg length, femoral length, and tibial length.

Results: The mean age at the time of diagnosis was 12.3±3.4 years. No statistically significant differences were found between the affected and contralateral sides for mechanical lateral distal femoral angle and mechanical medial proximal tibial angle in either the distal femur or the proximal tibia groups. In patients with femoral lesions, the femoral and whole-leg lengths were significantly shorter on the affected side than on the unaffected side ( P <0.001 and 0.002, respectively), and the mean differences were 2.1±3.6 and 2.1±4.4 mm, respectively. Univariate logistic regression analysis did not reveal any factors associated with limb length discrepancy (LLD). In patients with tibial lesions, no statistically significant differences were found in LLD.

Conclusions: SOs around the knee did not cause clinically significant deformity of the lower extremity. However, in contrast to proximal tibia lesions, SO in the distal femur was associated with the shortening of the affected limb. Consideration should be given to the development of LLD in skeletally immature children with SO in the distal femur.

Level Of Evidence: Level III-retrospective comparative study.

Download full-text PDF

Source
http://dx.doi.org/10.1097/BPO.0000000000002612DOI Listing

Publication Analysis

Top Keywords

solitary osteochondroma
8
alignment length
8
length lower
8
lower extremities
8
distal femur
8
femur proximal
8
proximal tibia
8
mechanical lateral
8
lateral distal
8
distal femoral
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!