Total hip replacement surgical guide tool
First Claim
1. A surgical guide tool for use in the preparation of a proximal portion of a femur for the implantation of a total hip replacement prosthetic implant, the implant including a feature configured to abut against a resection surface of the proximal femur when the implant is fully implanted in the proximal femur in a manner that generally replicates a preoperatively planned implantation for the implant, the tool comprising:
- a mating region including a customized surface contour that is generally a negative of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the proximal portion in a generally matching or interdigitating manner when the proximal portion is matingly received by the mating region and a saw guide, wherein, when the mating region matingly contacts the proximal portion, the saw guide is aligned with a resection plane generally corresponding to the resection surface.
2 Assignments
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Accused Products
Abstract
Disclosed herein is a surgical guide tool for use in total hip replacement surgery. The surgical guide tool may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane.
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Citations
51 Claims
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1. A surgical guide tool for use in the preparation of a proximal portion of a femur for the implantation of a total hip replacement prosthetic implant, the implant including a feature configured to abut against a resection surface of the proximal femur when the implant is fully implanted in the proximal femur in a manner that generally replicates a preoperatively planned implantation for the implant, the tool comprising:
- a mating region including a customized surface contour that is generally a negative of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the proximal portion in a generally matching or interdigitating manner when the proximal portion is matingly received by the mating region and a saw guide, wherein, when the mating region matingly contacts the proximal portion, the saw guide is aligned with a resection plane generally corresponding to the resection surface.
- View Dependent Claims (2, 3)
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4. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a superior-posterior region of the neck, the at least a portion of a superior-posterior region of the neck starting between approximately 1 mm and approximately 5 mm after a cartilage covering the head terminates distally and extending between approximately 15 mm and approximately 35 mm towards a trochanteric fossa.
- View Dependent Claims (5, 6, 7)
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8. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a superior-posterior region of the neck, the at least a portion of a superior-posterior region of the neck including a narrow band that follows along an intertrochanteric crest and has a medial-lateral width of between approximately 0.5 mm and approximately 8 mm.
- View Dependent Claims (9, 10)
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11. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a superior-anterior region of the neck, the at least a portion of a superior-anterior region of the neck starting between approximately 1 mm and approximately 5 mm after a cartilage covering the head terminates distally and extending between approximately 15 mm and approximately 35 mm to terminate before a tubercle.
- View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a superior-posterior region of the neck and at least a portion of a superior-anterior region of the neck, but does not include a junction between the superior-posterior and superior-anterior regions of the neck.
- View Dependent Claims (19, 20, 21)
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22. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a posterior region of the neck, the at least a portion of the posterior region of the neck including an area that extends towards a trochanteric fossa between approximately 15 mm and approximately 35 mm from a first point being between approximately 1 mm and approximately 5 mm distal of a distal termination of a cartilage covering the head.
- View Dependent Claims (23, 24, 25, 26, 27)
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28. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a posterior region of the neck, the at least a portion of the posterior region of the neck including an area that includes a narrow band measuring between approximately 0.5 mm and approximately 12 mm and following along an intertrochanteric crest.
- View Dependent Claims (29, 30, 31)
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32. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a posterior region of the neck, the at least a portion of the posterior region of the neck including an area that extends towards a trochanteric fossa from a first point being between approximately 1 mm and approximately 5 mm distal of a distal termination of a cartilage covering the head, but does not include an area spanning portions of the trochanteric fossa.
- View Dependent Claims (33, 34, 35, 36)
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37. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of an anterior region of the neck, the at least a portion of an anterior region of the neck extending up to approximately 8 mm laterally past an intertrochanteric line.
- View Dependent Claims (38, 39)
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40. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur having a head, a neck extending distally from the head, and a surface region distal the head, the tool comprising:
- a body including a saw guide and a mating region, the mating region including a customized surface contour that is generally a negative of the surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region, the saw guide and mating region being positioned relative to each other so the saw guide is positioned to guide a resection that generally corresponds to a preoperatively planned resection plane when the mating region matingly contacts the surface region, the surface region including at least a portion of a lateral posterior greater trochanter.
- View Dependent Claims (41, 42, 43, 44, 45, 46)
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47. A surgical guide tool for use in total hip replacement surgery on a proximal portion of a femur, the tool comprising:
- a mating region including a customized surface contour that is generally a negative of a surface region of the proximal portion of the femur, the surface contour of the mating region being configured to matingly contact the surface region in a generally matching or interdigitating manner when the surface region is matingly received by the mating region and a saw guide, wherein, when the mating region matingly contacts the surface region of the proximal portion, the saw guide is generally aligned with a preoperatively planned resection plane.
- View Dependent Claims (48, 49, 50, 51)
Specification