Medical Journal of the Islamic Republic Of Iran

en Calcaneostop provides favorable outcomes in flexible flatfoot patients Orthopedic Surgery Orthopedic Surgery Original Research Original Research     Background: Flatfoot is a relatively frequent deformity seen in almost 5% of children. It is classified into flexible and rigid flatfoot. Symptomatic flexible flatfoot (FFF) can be managed using several procedures, and calcaneostop is one of the procedures that has gained popularity recently. This study aimed to evaluate the outcome of the calcaneostop procedure using screws.    Methods: We retrospectively evaluated 57 feet in 44 consecutive patients with FFF undergoing calcaneostop surgery. The same pediatric orthopedic surgeon performed all surgeries. Following a 10-mm incision on the sinus tarsi, a partial thread 6.5 cancellous screw size 40 was inserted. Achilles tendon lengthening was performed on all patients, and a short leg cast was applied. Pain relief, complications, and the change in the talocalcaneal (Kite), talometatarsal (Meary’s), and calcaneal inclination (Pitch) angles were evaluated on plain radiographs using a paired t test.    Results: Pain relief was achieved in 55 (96.5%) cases, and 2 (3.5%) patients experienced pain after surgery. Other complications, including nerve damage, infection, screw loosening, fracture, or position loss, were not observed. The mean preoperative and postoperative Meary’s, Kite, and Pitch angles were 15.74 ± 2.02 (12.30-21.60), 8.72 ± 1.03 (7.20-10.60), 31.23 ± 1.97 (27.80-37.30), 21.30 ± 1.98 (18.50-24.60), 12.40 ± 1.64 (8.50-16.60), and 18.52 ± 1.97 (15.90-22.60), respectively. A significant improvement was observed in each angle following surgery (p<0.001).    Conclusion: Calcaneostop is an inexpensive and simple procedure that avoids the involvement of several joints and uses a simple incision leaving a small scar. This procedure is remarkably successful and can be quite convenient.   Flatfoot, Subtalar joint, Calcaneus, Tendon lengthening 375 379 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-7306-1&slc_lang=en&sid=1 Alireza Ghaznavi ghaznavialireza7@gmail.com 200319475328460069836 200319475328460069836 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Seyed Mani Mahdavi dr.mahdavi.spine@gmail.com 200319475328460069837 200319475328460069837 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Mehdi Moghtadaei mmoghtadaei@gmail.com 200319475328460069838 200319475328460069838 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Nima Taheri nimat92@yahoo.com 200319475328460069839 200319475328460069839 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Ali Yeganeh yeganeh.a@iums.ac.ir 200319475328460069840 200319475328460069840 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Amer Karimpour amerkarimpour@gmail.com 200319475328460069841 200319475328460069841 No Department of Orthopedic Surgery, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Mohammad Soleimani soleymani.mo@iums.ac.ir 200319475328460069842 200319475328460069842 Yes Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran