Intramedullary Resorbable Fixation System Versus K-wire for the Treatment of Lesser Toe Deformities
Intramedullary Resorbable Fixation System Versus K-wire for the Treatment of Lesser Toe Deformities
Hammertoe deformity is one of the most common deformities in the foot and is characterized by
 dorsiflexion of the proximal phalanx at the metatarsal-phalangeal joint and a plantarflexion
 of the middle phalanx at the proximal interphalangeal joint. Surgical intervention for this
 type of deformity is indicated when the symptoms progress and conservative treatments are not
 enough, that is, when we are faced with a rigid painful deformity.Arthrodesis of the proximal
 interphalangeal joint temporarily fixed with a Kirschner wire is the most commonly used
 techniques.

 Therefore, intramedullary fixation with a PLLA needle may be a good alternative. The use of
 biomaterial is gaining relevance in foot surgery, with polylactic acid being the most widely
 used due to its strength. Its total biodegradation requires a time of 16-24 months. No cases
 of foreign body reaction have been described with this type of osteosynthesis material, due
 to its characteristics similar to those of bone. Its only drawbacks are that it increases the
 complexity of the technique and that it increases the cost of the procedure. Being a flexible
 needle, it allows to leave a functional intraoperative claw. It maintains the functionality
 of the distal interphalangeal joint and carries a lower risk of infection by carrying
 osteosynthesis material on the outside.

 The purpose of the present study is to prospectively collect clinical and radiographic
 outcomes of operative correction of hammertoe deformity using a fixation system of
 intramedullary device of polylactic acid versus a kirschner wire.
A comparative, prospective, randomised study.
Inclusion Criteria:

 -  Clinical and radiological evidence of rigid hammer toe.

 -  Non-smoking patient.

 -  Have no previous surgical episode or known trauma to the foot or ankle of the same
 limb.

 -  Not have any significant medical comorbidity:

 -  Uncontrolled hypertension.

 -  Previous myocardial infarction.

 -  Neoplasms.

 -  Chronic obstructive pulmonary disease.

 -  Arrhythmias.

 -  Morbid obesity.

 -  Uncontrolled diabetes mellitus.

 -  Peripheral vascular disease.

 -  Peripheral neuropathy.

 -  Lumbar disc herniation.

 -  Any neuro-muscular alteration.

 -  That the patient present:

 -  Palpable peripheral pulses through the posterior tibial artery and pedia.

 -  Ankle-brachial index or YAO between 1-1.2.

 -  Partial oxygen saturation> or = 95%.

 Exclusion Criteria:

 -  That the patient has undergone another previous surgical procedure on the same foot.

 -  Known trauma to the foot to be intervened.

 -  History of sensitivity to local anesthetics.

 -  Pregnant or lactating women.

 -  Follow-up time less than 90 days.

 -  Patients with any systemic pathology or in chronic treatment that could interfere with
 the favorable evolution of the process.