Osteotomies of the second phalanx of the great toe: A clinical experience
Verónica Montiel 1 , Juan Manuel Yáñez Arauz 2 , Álvaro Suárez 3 , Carlos Villas Tomé 3 , Matías Alfonso Olmos-García 3
Background: At the time of the first report on the feasibility of corrective osteotomies of the distal phalanx (DP) of the great toe there were no published studies addressing this type of surgery. Along this line, and throughout our clinical experience, this paper tries to show the clinical benefits of hallux DP osteotomies when correcting interphalangeal valgus deformities (IHV) of the great toe, either with open or percutaneous procedure.
Material and methods: This is a review of 18 cases in which a DP osteotomy was performed in 2 different institutions, 8 cases were performed using open technique and 10 cases percutaneously. The correction obtained was analyzed by measuring the distal articular set angle (DASA), obliquity angle (AP1), asymmetry angle (AP2), and global distal phalanx deviation (GDPD) angle before and after the surgery on dorso-plantar weight-bearing radiographs in all cases. Clinical results were also recorded.
Results: Excellent clinical and radiological results were achieved with both techniques in all patients with no complications. The average DP angular deformity correction in terms of AP1, AP2 and GDPD angles were 4.58º ± 5.55º, 8.95º ± 4.77º and 16.53º ± 7.26 respectively. In 10 cases an Akin osteotomy was associated.
Conclusion: In cases with valgus deviation in the hallux DP, a corrective osteotomy of the DP alone or associated to osteotomy of the PP should be considered as a useful tool. The technique is feasible and has no technical difficulties for an orthopedic surgeon with experience on feet surgery.