Closing Wedge Proximal Osteotomy
The primary indication for a proximal closing wedge osteotomy is a symptomatic hallux valgus deformity with a first intermetatarsal angle (IMA) of 14 degrees or greater. The first metatarsocuneiform (MC)…
ORTHOPEDIC
Extending the Indications for the Distal Chevron Osteotomy
The distal chevron osteotomy has proven to be a reliable, reproducible method of bunion repair for mild to moderate deformity. By altering the location and displacement of the osteotomy, the…
Proximal Chevron Osteotomy with Plate Fixation
Correction of major bunion deformities through the proximal portion of the first metatarsal is widely recognized as the established method of reducing the angle between the first and second metatarsal.3–6…
Distal Chevron Osteotomy Perspective 2
The primary indication for a chevron osteotomy is symptomatic hallux valgus deformity with a moderate deformity with an intermetatarsal angle of less than 15 degrees. The first metatarsocuneiform joint should…
Anatomic Repair of Lateral Ankle Instability
■ Static structures include the bony architecture of the joints and the ligaments. This bony configuration contributes about 30% of the stability, whereas the remaining 70% of stability comes from the…
Imaging Techniques for the Diagnosis of Spondylolisthesis
Fig. 6.1 Normal frontal (a) and lateral (b) lumbosacral spine radiographs Fig. 6.2 Normal anatomy in the AP projection demonstrated at L3: Superior articular facet (S), inferior articular facet (I),…
Presacral Fusion for Adult Spondylolisthesis
Fig. 17.1 Incision Insert a Weitlaner retractor and mobilize the incision medially until it is positioned over the narrow bony coccyx. The coccyx now acts as a rigid “backstop” for…
Management of Spondyloptosis
Fig. 19.1 Slip angle is a value that determines the severity of spondylolisthesis and is higher than 50° in spondyloptosis. It is measured between the perpendicular to a line along…
Spondylolisthesis: A Historical Perspective on Etiology, Diagnosis, and Treatment
Fig. 1.1 Sagittal view on computed tomography (CT) showing a pars defect of L5 Etiology In the late 1800s and early 1900s, there were multiple studies attempting to identify the…
Clinical Evaluation of Adult Patient with Spondylolisthesis
Fig. 5.1 The Meyerding grading scale for the severity of a slip is determined by dividing the superior endplate of the caudal vertebra in quartiles, and measuring the location of…
