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What Components Comprise the Measurement of the Tibial Tuberosity-Trochlear Groove Distance in a Patellar Dislocation Population?
- Source :
- J Bone Joint Surg Am
- Publication Year :
- 2015
-
Abstract
- Background: The tibial tuberosity-trochlear groove distance is used as an indicator for medial tibial tubercle transfer; however, to our knowledge, no studies have verified whether this distance is strongly affected by tubercle lateralization at the proximal part of the tibia. We hypothesized that the tibial tuberosity-trochlear groove distance is mainly affected by tibial tubercle lateralization at the proximal part of the tibia. Methods: Forty-four patients with a history of patellar dislocation and forty-four age and sex-matched controls were analyzed with use of computed tomography. The tibial tuberosity-trochlear groove distance, tibial tubercle lateralization, trochlear groove medialization, and knee rotation were measured and were compared between the patellar dislocation group and the control group. The association between the tibial tuberosity-trochlear groove distance and three other parameters was calculated with use of the Pearson correlation coefficient and partial correlation analysis. Results: There were significant differences in the tibial tuberosity-trochlear groove distance (p < 0.001) and knee rotation (p < 0.001), but there was no difference in the tibial tubercle lateralization (p = 0.13) and trochlear groove medialization (p = 0.08) between the patellar dislocation group and the control group. The tibial tuberosity-trochlear groove distance had no linear correlation with tubercle lateralization (r = 0.21) or groove medialization (r = −0.15); however, knee rotation had a good positive correlation in the patellar dislocation group (r = 0.62). After adjusting for the remaining parameters, knee rotation strongly correlated with the tibial tuberosity-trochlear groove distance (r = 0.69, p < 0.001), whereas tubercle lateralization showed moderate significant correlations in the patellar dislocation group (r = 0.42; p = 0.005). Conclusions: Because the tibial tuberosity-trochlear groove distance is affected more by knee rotation than by tubercle malposition, its use as an indicator for tibial tubercle transfer may not be appropriate. Clinical Relevance: Surgical decisions of tibial tubercle transfer should be made after the careful analysis of several underlying factors of patellar dislocation.
- Subjects :
- musculoskeletal diseases
Adult
Male
Torsion Abnormality
Scientific Articles
Adolescent
Tubercle
Patellar Dislocation
Population
Tibial tuberosity
Trochlear groove
Positive correlation
Young Adult
Medicine
Humans
Orthopedics and Sports Medicine
Tibia
education
Retrospective Studies
education.field_of_study
business.industry
General Medicine
Anatomy
Middle Aged
musculoskeletal system
eye diseases
Case-Control Studies
Surgery
Female
Dislocation
business
Tomography, X-Ray Computed
Groove (joinery)
Subjects
Details
- ISSN :
- 15351386
- Volume :
- 97
- Issue :
- 17
- Database :
- OpenAIRE
- Journal :
- The Journal of bone and joint surgery. American volume
- Accession number :
- edsair.doi.dedup.....306225f40a8bd14b3c0ff074f6ebdadc