PATIENT MATCHED HIP SYSTEM
A method of selecting a patient matched hip joint prosthesis includes identifying a plurality of first parameters of a hip joint anatomy of the patient. The method also includes selecting a standard modular neck member from a set of different standard modular neck members to substantially match the first parameters of the hip joint anatomy of the patient. Moreover, the method includes performing a hip joint mechanical analysis using the selected standard modular neck member. Further, the method includes choosing for implantation either the selected modular neck member, a different standard modular neck member, or a custom designed neck member based on the hip joint mechanical analysis.
1 . A method of selecting a patient matched hip joint prosthesis comprising:
identifying a plurality of first parameters of a hip joint anatomy of the patient;
selecting a standard modular neck member from a set of different standard modular neck members to substantially match the first parameters of the hip joint anatomy of the patient;
performing a hip joint mechanical analysis using the selected standard modular neck member; and
choosing for implantation one of the selected standard modular neck member, a different one of the standard modular neck members, or a custom designed neck member based on the hip joint mechanical analysis.
2 . The method of claim 1 , wherein the identifying the plurality of first parameters comprises identifying a neck length of a femur of the patient, a neck angle of the femur, an amount of anteversion of the femur, and a vector relative to a center of a head of the femur and an axis of a neck of the femur.
3 . The method of claim 1 , further comprising providing the set of different standard modular neck members, the standard modular neck members each having different respective geometries.
4 . The method of claim 1 , further comprising imaging the hip joint anatomy by performing at least one of a CT scan, an MRI, and a fluoroscopic scan.
5 . The method of claim 1 , further comprising creating an electronic model of the hip joint anatomy and the selected standard modular neck member.
6 . The method of claim 1 , wherein the performing the hip joint mechanical analysis comprises performing a dynamic analysis of the hip joint using the selected standard neck member.
7 . The method of claim 1 , wherein the performing the hip joint mechanical analysis comprises at least one of performing a range of motion analysis using the selected standard modular neck member and performing a stability analysis of the hip joint using the selected standard modular neck member.
8 . The method of claim 1 , further comprising building a provisional neck member corresponding in shape to the neck member chosen for implantation.
9 . The method of claim 1 , wherein each standard modular neck member in the set of standard modular neck members includes an end adapted to removably couple to a stem member, and wherein the end includes a male portion of a taper coupling.
10 . The method of claim 1 , further comprising assembling the patient matched hip joint prosthesis from the custom designed neck member and at least one of a standard, modular stem member and a standard, modular head member.
11 . A method of selecting a patient matched hip joint prosthesis comprising:
imaging a hip joint anatomy of a patient;
creating an electronic model of the hip joint anatomy;
identifying a plurality of first parameters the hip joint anatomy, the plurality of first parameters including a neck length of a femur of the patient, a neck angle of the femur, an amount of anteversion of the femur, and a vector relative to a center of a head of the femur and an axis of a neck of the femur;
selecting a standard modular neck member from a set of different standard modular neck members to substantially match the first parameters of the hip joint anatomy of the patient;
performing a hip joint mechanical dynamics analysis using the selected standard modular neck member, the hip joint mechanical dynamics analysis including performing a range of motion analysis using the selected standard modular neck member and performing a stability analysis of the hip joint using the selected standard modular neck member;
choosing for implantation one of the selected standard modular neck member, a different one of the standard modular neck members, and a custom designed neck member based on the hip joint mechanical dynamics analysis; and
building a provisional neck member corresponding in shape to the neck member chosen for implantation.
12 . The method of claim 11 , wherein each standard modular neck member in the set of standard modular neck members includes an end adapted to removably couple to a stem member, and wherein the end includes a male portion of a taper coupling.
13 . The method of claim 11 , further comprising assembling the patient matched hip joint prosthesis from the custom designed neck member and at least one of a standard, modular stem member and a standard, modular head member.
14 . A method of selecting a patient matched hip joint prosthesis comprising:
identifying a plurality of first parameters of a hip joint anatomy of the patient;
selecting a standard modular neck member from a set of different standard modular neck members, a standard modular stem member from a set of different standard modular stem members, and a standard modular head member from a set of different standard modular head members to substantially match the first parameters of the hip joint anatomy of the patient;
performing a hip joint mechanical analysis using the selected standard modular neck member, stem member, and head member; and
choosing for implantation one of the selected standard modular neck member, a different one of the standard modular neck members, or a custom designed neck member based on the hip joint mechanical analysis.