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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.
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| Measure | Description | Time Frame |
|---|---|---|
| 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. | 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. | 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. | 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. | 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. | 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. | After 24 months |
| Measure | Description | Time Frame |
|---|---|---|
| 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 | At baseline (day 0) |
| AOFAS Score |
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Inclusion Criteria:
Exclusion Criteria:
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Patients aged between 8 and 14 years with idiopathic, flexible, symptomatic flatfoot
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Antonio Mazzotti, MD PhD | Contact | 0516445064 | antonio.mazzotti@ior.it |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Istituto Ortopedico Rizzoli | Recruiting | Bologna | 40136 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 15181430 | Result | Nelson SC, Haycock DM, Little ER. Flexible flatfoot treatment with arthroereisis: radiographic improvement and child health survey analysis. J Foot Ankle Surg. 2004 May-Jun;43(3):144-55. doi: 10.1053/j.jfas.2004.03.012. |
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| ID | Term |
|---|---|
| D005413 | Flatfoot |
| ID | Term |
|---|---|
| D000070558 | Talipes |
| D005531 | Foot Deformities, Acquired |
| D005530 | Foot Deformities |
| D009140 | Musculoskeletal Diseases |
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| 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. |
| 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. | 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. | After 72 months |
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 |
| 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 | 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 | 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 | 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 | 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 | After 36 months |
| AOFAS Score | American Orthopaedic Foot and Ankle Society Score- from 0 to 100 points. 0 worst possible score, 100 best possible score | 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 | After 72 months |
| D005532 |
| Foot Deformities, Congenital |
| D038061 | Lower Extremity Deformities, Congenital |
| D017880 | Limb Deformities, Congenital |
| D009139 | Musculoskeletal Abnormalities |
| D000013 | Congenital Abnormalities |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |