Arthrorisis of the subastragalus joint represents one of the surgical treatments for addressing flexible flatfoot, a condition caused by joint deformity. The device is designed to restore the correct joint relationships between the astragalus and calcaneus, with the goal of maintaining the new and proper joint alignment over time, typically allowing for bone remodeling along natural growth lines, usually within a few years. Several implants and various variations of the procedure have been developed.There are currently no prospective studies that assess radiographic and clinical data over time. Therefore, the purpose of this study is to prospectively analyze the outcomes of surgical intervention using subastragalus arthrorisis with a polymeric endorthesis for the treatment of flexible flatfoot during the growth period in a consecutive series of 55 patients.
Study Type
OBSERVATIONAL
Enrollment
55
Istituto Ortopedico Rizzoli
Bologna, Italy
RECRUITINGMeary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: At baseline (day 0)
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 1 month
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 3 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 6 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 12 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 24 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 36 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 48 months
Meary's angle
Meary's angle is the angle between a line drawn along the longitudinal axes of the talus (mid-talar axis) and the first metatarsal (first metatarsal axis) on the lateral weight bearing X ray.
Time frame: After 72 months
AOFAS Score
The American Orthopedic Foot and Ankle Society Score is a semi-objective rating scale that evaluates ankle pain, motion and alignment and ranges from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: At baseline (day 0)
AOFAS Score
The American Orthopedic Foot and Ankle Society Score is a semi-objective rating scale that evaluates ankle pain, motion and alignment and ranges from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 1 month
AOFAS Score
The American Orthopedic Foot and Ankle Society Score is a semi-objective rating scale that evaluates ankle pain, motion and alignment and ranges from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 3 months
AOFAS Score
The American Orthopedic Foot and Ankle Society Score is a semi-objective rating scale that evaluates ankle pain, motion and alignment and ranges from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 6 months
AOFAS Score
American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 12 months
AOFAS Score
American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 24 months
AOFAS Score
American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 36 months
AOFAS Score
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American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 48 months
AOFAS Score
American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score
Time frame: After 72 months