Sagittal balance analysis after pedicle subtraction osteotomy in ankylosing spondylitis.

Introduction: This is a radiographic study of ankylosing spondylitis patients with severe fixed kyphotic deformity who underwent pedicle subtraction osteotomy. Our goal was to measure and validate new angle to assess global kyphosis and to evaluate the sagittal balance after surgery. This is the first report which describes new angle to assess global kyphosis (T1-S1).

In vivo positioning analysis of medial patellofemoral ligament reconstruction.

Background: Several techniques have been described for reconstruction of the medial patellofemoral ligament (MPFL). The anatomical insertion of the MPFL has been defined; however, there are no reports describing the accuracy of femoral graft positioning assessed postoperatively.

Purpose: To analyze our femoral tunnel positioning for MPFL reconstruction in correlation with our clinical results.

Radiological analysis of ankylosing spondylitis patients with severe kyphosis before and after pedicle subtraction osteotomy.

This is a radiographic study of ankylosing spondylitis patients with severe fixed kyphotic deformity who underwent pedicle subtraction osteotomy. Our goal was to measure and validate new angle to assess global kyphosis and to evaluate the radiological outcomes after surgery. This is the first report which describes new angle to assess global kyphosis (T1-S1).

Failed vascularized proximal fibular epiphyseal transfer for hip reconstruction following infection in children.

Purpose: Treatment of the sequellae of hip infection with epiphyseal destruction in children has had limited success to date. The aim of this study was to report mid-term results after hip epiphyseal reconstruction using a proximal vascularized fibular graft in three children presenting with massive epiphyseal destruction of the proximal femur following infection.

Methods: Three children suffered from hip articular destruction type IVB according to the Choi classification after neonatal septic arthritis.

Clinical outcome after percutaneous flexor tenotomy in forefoot surgery.

The aim of this study was to evaluate the outcome of the percutaneous flexor tenotomy. We compared the results of two groups. The first group included 23 patients who underwent forefoot surgery without percutaneous flexor tenotomy, and the second group included 50 patients who underwent the same procedure combined with percutaneous flexor tenotomy for claw toe deformities, secondary to shortening metatarsal Scarf osteotomy.