Factors Affecting Tibial Tuberosity-Trochlear Groove Distance in Recurrent Patellar Dislocation
Clinics in Orthopedic Surgery
;
: 420-426, 2018.
Article
Dans Anglais
| WPRIM
| ID: wpr-718651
ABSTRACT
BACKGROUND:
The tibial tuberosity-trochlear groove (TT-TG) distance is used to determine the necessity of tibial tubercle osteotomy. We conducted this study to determine the extent to which each of the tibial tuberosity lateralization, trochlear groove medialization, and knee rotation angle affects the TT-TG distance in both normal and patella dislocated patients and thereby scrutinize the rationale for tuberosity transfer based on the TT-TG distance.METHODS:
Retrospective analysis of rotational profile computed tomography was done for patella dislocated and control group patients. Femoral anteversion, tibial torsion, knee rotation angle, tuberosity lateralization, and trochlear groove medialization were assessed in all patients. Relationship of these parameters with the TT-TG distance was investigated to evaluate their effects on the TT-TG distance.RESULTS:
We observed that the patellar dislocation group, compared to the control group, had increased TT-TG distance (mean, 19.05 mm vs. 9.02 mm) and greater tuberosity lateralization (mean, 64.1% vs. 60.7%) and tibial external rotation in relation to the femur (mean, 7.9° vs. −0.81°).CONCLUSIONS:
Tuberosity lateralization and knee rotation were factors affecting patellar dislocation. These factors should be considered in addition to the TT-TG distance to determine the need for tibial tubercle osteotomy in patients with patellar dislocation.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ostéotomie
/
Patella
/
Études rétrospectives
/
Luxation patellaire
/
Fémur
/
Genou
Type d'étude:
Étude observationnelle
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Clinics in Orthopedic Surgery
Année:
2018
Type:
Article
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