Patient-specific femoral version guide
AssigneeBiomet Manufacturing, LLC
InventorsAaron P. Smith, Jason D. Meridew
Life of this patent
Estimating the term…
Abstract
An orthopedic device includes a monolithic patient-specific guide. The patient-specific guide includes a three-dimensional contact surface preoperatively configured from medical scans of a specific patient as a negative surface of a medial portion of a proximal femoral bone of the patient according to a preoperative surgical plan for the patient. The guide also includes a proximal planar surface configured for guiding a resection of a femoral neck of the patient, and a scale formed on the planar surface. The scale is configured for indicating a preoperatively planned femoral version of a femoral stem implant and deviations therefrom.
Claims21
1-20. (canceled)
An patient-specific orthopedic guide comprising:
- a three-dimensional contact surface preoperatively configured from medical scans of a specific patient as a negative surface of a lesser trochanter of a proximal femoral bone of the patient according to a preoperative surgical plan for the patient;
- and
- a planar surface configured for guiding a resection of a femoral neck of the patient, the planar surface configured to be disposed proximal of the lesser trochanter of the patient and configured to extend along less than an entirety of the femoral neck.
An orthopedic assembly comprising:
- a patient-specific guide having a three-dimensional contact surface preoperatively configured from medical scans of a specific patient as a negative surface of a lesser trochanter of a proximal femoral bone of the patient according to a preoperative surgical plan for the patient, the patient specific guide having a proximal planar surface configured for guiding a resection of a femoral neck of the patient, the proximal planar surface configured to extend along less than an entirety of the femoral neck;
- a broach for a femoral stem implant, the broach having a proximal post;
- and
- a version assembly having a body with an inner bore receiving the post of the broach.
A method for hip arthroplasty comprising:
- mounting a patient-specific guide around a medial portion of a proximal femoral bone of a hip joint of a patient;
- registering a contact surface of the patient-specific guide onto the medial portion ma unique position, the contact surface preoperatively configured as a negative of the medial portion from medical scans of the patient;
- resecting a femoral neck of the femoral bone along a planar guiding surface of the patient-specific guide, the planar guiding surface configured to extend along less than an entirety of the femoral neck;
- and
- preparing an intramedullary canal of the femoral bone using a broach through the resected femoral neck.
Dependencies are inferred from the claim text.