Abstract: A method can include receiving, at a server, preoperative image data of a patient's bone, and accessing, at the server, a database of three-dimensional model data. A patient specific three-dimensional model of the patient's bone can be generated, at the server. A preoperative surgical plan can be generated at the server, which can include comparing aspects of the preoperative surgical plan with predetermined reliability criteria. An interactive user interface for use by a surgeon to review the preoperative surgical plan can be provided, from the server, to a user device. Approval of the preoperative surgical plan can be received, at the server, via the interactive user interface. Postoperative image data of the patient's bone can be received at the server. A postoperative outcome study report can be generated, at the server, and can include a comparison of the preoperative surgical plan with the postoperative image data.

Abstract: A patient-specific guide tool for guiding an instrument toward a bone for implantation of a prosthetic device is disclosed. The guide tool includes a body portion having a guide element, and a patient-specific portion having at least one patient-specific mating feature that is configured to engage a soft tissue at or near the bone. A method of manufacturing a guide tool for guiding an instrument toward a bone is also disclosed.

Abstract: A patient-specific guide tool for guiding an instrument toward a bone for implantation of a prosthetic device is disclosed. The guide tool includes a body portion having a guide element, and a patient-specific portion having at least one patient-specific mating feature that is configured to engage a soft tissue at or near the bone. A method of manufacturing a guide tool for guiding an instrument toward a bone is also disclosed.

Abstract: A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide.

Abstract: A bone preparation guide including a first patient-specific portion based on image data of a specific patient's bone and configured to match the patient's specific bone surface. A second patient-specific portion is based on image data of the specific patient's bone and configured to match the patient's specific bone surface. A patient-generic portion is configured to be a bone-facing portion supported by the first and the second patient-specific bone contacting members at a portion of the patient's bone surface not imaged during preparation of a preoperative plan.

Abstract: A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide.

Abstract: A patient matched surgical component including a body having a surface that is preoperatively shaped to substantially mate with the shape of an anatomical feature of a patient in a predefined spatial relationship, the surface being shaped by preoperatively identifying a finite number of bony anatomical landmarks on a representative model of the anatomical feature, and a reference array preoperatively integrated with a surgical navigation tracking system in a predefined spatial orientation relative to the anatomical feature, the reference array being couplable to the body such that when the surgical component is installed onto the anatomical feature intraoperatively, the position of the anatomical feature relative to the reference array is automatically recognized by the surgical navigation system.

Abstract: A patient matched surgical component including a body having a surface that is preoperatively shaped to substantially mate with the shape of an anatomical feature of a patient in a predefined spatial relationship, the surface being shaped by preoperatively identifying a finite number of bony anatomical landmarks on a representative model of the anatomical feature, and a reference array preoperatively integrated with a surgical navigation tracking system in a predefined spatial orientation relative to the anatomical feature, the reference array being couplable to the body such that when the surgical component is installed onto the anatomical feature intraoperatively, the position of the anatomical feature relative to the reference array is automatically recognized by the surgical navigation system.

Abstract: A bone preparation system including a guide body and a plurality of bone locators. The guide body is configured to mate with a patient-specific module having a patient-specific module surface customized based on image data of a specific patient to correspond to the patient's specific bone geometry. The plurality of bone locators are coupled to the guide body and positioned by the patient-specific module surface to define a patient-specific bone engaging surface of the guide corresponding to the patient's specific bone geometry.

Abstract: A patient-specific tibial pin guide for placement on a tibia during a joint arthroplasty procedure on a patient is disclosed. The tibial pin guide includes a patient-specific inner surface having a first offset portion and a second offset portion. The first offset portion is configured to be offset from and mimic a first bone surface. The first offset portion of the patient-specific inner surface is shaped to form a gap to accommodate soft tissue overlying a proximal surface of the tibia of the patient. The second offset portion of the patient-specific inner surface is shaped to provide clearance for a patella tendon of the patient. The tibial pin guide also has a first patient-specific contact area configured for direct bone registration without intervening soft tissue and a second patient-specific contact area that is configured for direct bone registration without intervening soft tissue. The second patient-specific contact area is non-contiguous with the first patient-specific contact area.

Abstract: A method of intraoperatively selecting between a partial knee arthroplasty and total knee arthroplasty includes mounting a patient-specific three-dimensional surface of a convertible patient-specific guide in a unique position mating to a corresponding surface of a distal femoral bone. The convertible patient-specific guide includes an anterior portion and a distal portion a patellofemoral guide. One of a total knee arthroplasty and a partial knee arthroplasty is selected intraoperatively. If total knee arthroplasty is selected, first and second covers are removed from corresponding first and second distal guiding bore. First and second distal pins through the first and second distal guiding bores are registered on the bone. If partial knee arthroplasty is selected, the anterior portion is severed and removed along a frangible groove and the distal portion is used as a patellofemoral guide.

Abstract: A patient-specific alignment guide includes a patient-specific portion and a guiding element having a through opening. The patient-specific portion has a patient-specific surface preoperatively configured to mate as a negative of a portion of an iliac crest of a pelvis of a specific patient and mate to the iliac crest only in one position. The guiding element has a preoperatively configured orientation and location relative to the patient-specific portion for preparing a bore in the bone of the patient to direct a bone screw at the preoperatively configured orientation and location for sacroiliac fixation.

Abstract: A method for pre-operative orthopedic planning includes obtaining only a high-resolution knee-joint scan of a patient, determining hip rotation center and ankle rotation center from anthropometric data based on personal data of the patient, and determining a mechanical axis of the knee joint based on the anthropometric data. The method also includes preparing at least a two-dimensional image model of the knee joint using the knee-joint scan and the determined mechanical axis, and preparing a pre-operative surgical plan based on the image of the knee joint.

Abstract: A patient-specific acetabular guide can be used for preparing an acetabulum of a patient to receive an acetabular implant. The acetabular guide includes a patient-specific engagement surface designed to be complementary and mateable with a corresponding surface of the patient's pelvic anatomy. The acetabular guide is designed during a pre-operative plan for the patient by a three-dimensional reconstruction of the anatomy of the patient using two-dimensional medical images. The patient-specific engagement surface has a first portion mateable with a portion of the acetabulum of the patient. The acetabular guide includes a guiding element that extends from the acetabular guide opposite to the first portion of engagement surface. The guiding element defines a bore designed to be oriented along an alignment axis for an acetabular implant when the acetabular guide is engaged to the acetabulum.

Abstract: An orthopedic device includes a first patient-specific element having a first patient-specific surface preoperatively configured to mate and conform to a first anatomic portion of a specific patient based on medical scans of the patient. The orthopedic device includes a second patient-specific element having a second patient-specific surface preoperatively configured to mate and conform to a second anatomic portion of a specific patient based on medical scans of the patient. An arcuate bridge couples the first and second patient-specific portions. The arcuate bridge is configured to provide clearance the patient's anatomy between the first and second anatomic portions.

Abstract: A patient-specific alignment guide includes a patient-specific portion and a guiding element having a through opening. The patient-specific portion has a patient-specific surface preoperatively configured to mate as a negative of a portion of an iliac crest of a pelvis of a specific patient and mate to the iliac crest only in one position. The guiding element has a preoperatively configured orientation and location relative to the patient-specific portion for preparing a bore in the bone of the patient to direct a bone screw at the preoperatively configured orientation and location for sacroiliac fixation.

Abstract: A patient matched surgical component including a body having a surface that is preoperatively shaped to substantially mate with the shape of an anatomical feature of a patient in a predefined spatial relationship, the surface being shaped by preoperatively identifying a finite number of bony anatomical landmarks on a representative model of the anatomical feature, and a reference array preoperatively integrated with a surgical navigation tracking system in a predefined spatial orientation relative to the anatomical feature, the reference array being couplable to the body such that when the surgical component is installed onto the anatomical feature intraoperatively, the position of the anatomical feature relative to the reference array is automatically recognized by the surgical navigation system.

Abstract: A patient-specific guiding system for guiding an instrument relative to a portion of an anatomical feature of a patient. The patient-specific guiding system includes a patient-specific guide. The guide includes a first portion having a first patient-specific inner surface that conforms to a first surface of the anatomical feature and an outer surface opposite the first patient-specific inner surface. The first portion also includes a guide surface for use in guiding the instrument relative to the anatomical feature. The guide also includes a second portion having a second patient-specific inner surface that conforms to a second surface of the anatomical feature and an outer surface opposite the second patient-specific inner surface. The second portion is removably connected to the first portion.

Abstract: A patient-specific tibial pin guide for placement on a tibia during a joint arthroplasty procedure on a patient is disclosed. The tibial pin guide includes a patient-specific inner surface having a first offset portion and a second offset portion. The first offset portion is configured to be offset from and mimic a first bone surface. The first offset portion of the patient-specific inner surface is shaped to form a gap to accommodate soft tissue overlying a proximal surface of the tibia of the patient. The second offset portion of the patient-specific inner surface is shaped to provide clearance for a patella tendon of the patient. The tibial pin guide also has a first patient-specific contact area configured for direct bone registration without intervening soft tissue and a second patient-specific contact area that is configured for direct bone registration without intervening soft tissue. The second patient-specific contact area is non-contiguous with the first patient-specific contact area.

Abstract: An orthopedic device for joint arthroplasty includes a patient-specific alignment guide constructed and configured for a specific patient from medical scans that show a bone surface of a bone of the patient without any overlying soft tissue. The patient-specific alignment guide includes a patient-specific inner surface configured to be offset from and mimic the bone surface and form a clearance for soft tissue overlying the bone surface. The alignment guide also includes a plurality of patient-specific contact areas configured to mate and register directly on the bone surface without intervening soft tissue for direct bone registration. The plurality of patient-specific contact areas includes non-contiguous surface contact areas.