Posterior retractor and method of use for minimally invasive hip surgery
AssigneeZimmer Technology, Inc.
InventorDonald Dye
Life of this patent
Estimating the term…
Abstract
A method and apparatus for performing minimally invasive hip surgery for implanting a prosthetic acetabular component into a natural acetabulum. The method and apparatus include a posterior retractor having handle and retracting sections. The retracting section retracts soft tissue in the posterior section of the surgical site and includes a paddle with a curved flare and an elongated curved prong extending outwardly.
Claims20
A method for using minimally invasive surgery to implant a prosthetic acetabular shell and insert into a natural acetabulum, comprising of:
- incising a hip with a minimally invasive incision;
- providing a posterior retractor having a handle section and a retracting section, the retracting section includes a paddle with a flare on one side and an elongated prong that extends downwardly from the flare;
- positioning the prong against the obturator fossa and the paddle against the ischium;
- retracting soft tissue with the retracting section;
- positioning the acetabular shell and insert into the natural acetabulum;
- and closing the incision.
A method for implanting a prosthetic acetabular component into a natural acetabulum of a patient, the method comprising the steps of:
- incising a hip to produce an incision with a length of about 2½ inches to about 5 inches to create a surgical site with access to the natural acetabulum;
- providing a posterior retraction instrument having a handle section and a retracting section, wherein the retracting section includes paddle with a flare along a first side and a prong extending downwardly from the flare, the prong having a curved shape;
- positioning the posterior retraction instrumentation in a posterior portion of the surgical site;
- retracting soft tissue with the retracting section;
- positioning the acetabular component into the natural acetabulum;
- and
- closing the surgical site and incision.
A method for implanting a prosthetic acetabular component into a natural acetabulum of a patient, the method comprising the steps of:
- incising the patient with an incision from about 2½ inches to about 5 inches to provide surgical access to the natural acetabulum;
- preparing the natural acetabulum to receive the acetabular component;
- providing a retractor having an elongated handle section connected to a retracting section, the retracting section including a paddle and a curved prong extending outwardly from the paddle;
- positioning the retractor in a posterior aspect of the incision so the paddle abuts an ischium and shields a sciatic nerve;
- positioning the acetabular component into the natural acetabulum;
- and closing the incision.
Dependencies are inferred from the claim text.