Abstract: The present invention provides an active substance application insert (10, 110) for an implant (30), in particular a joint implant. The active substance application insert has a main body (11), an active substance chamber (12) formed in the main body, an application side (13, 113) which forms a front face of the active substance chamber, wherein the application side has a plurality of application openings (14, 114), and a securing means (15) with which the main body can be detachably secured in the implant. In a state in which the main body is inserted into the implant, the application side faces outwards relative to the implant, such that the application openings connect the active substance chamber to the environment of the implant. Furthermore, within the scope of the present invention an implant (30) with a recess (31) for receiving an active substance application insert (10, 110) is provided.

Abstract: The femoral neck preserving hip implant includes a polymer femoral head molded onto a femoral head base, which is attached to a femoral neck rod to be inserted into the femoral neck of a patient. A metal acetabular cup is inserted into an acetabulum anatomy of a pelvis. The femoral head interfaces with the acetabular cup as a smooth plastic-to-metal spherical-surface joint. A main body shaft to be inserted into a femoral shaft has a diagonal hole therethrough located at a center line of the femur's neck to receive the femoral neck rod at a specified angle. A secured lock mechanism in the main body shaft above the diagonal hole is screwed down to compressively engage the femoral neck rod. Both the diagonal hole and the end of the femoral neck rod may have a slight taper. The femoral neck rod also has a radially outward extending flange that forms a contact feature that sits upon the resection plane of the femoral neck to stabilize against axial force loading.

Abstract: A short-stem femoral implant suitable for use in hip arthroplasty configured to self-stabilise against sliding across the endo-cortex when implanted in a subject's femur. The femoral implant includes a distal end configured to engage in abutment with the lateral endo-cortex of the subject's femur at two distal locations such that when implanted, the femoral implant has a reduced tendency for sliding across the endo-cortex.

Abstract: A medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device has at least two artificial hip joint surface parts adapted to be connected to each other to form an artificial hip joint surface during an operation. A method of treating a hip joint of a human patient by providing the medical device is also provided. The method includes cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in the dissected area passing through the pelvic bone and into said hip joint and providing the medical device to the hip joint, through the hole in the pelvic.

Abstract: The invention relates to a connection device for connecting a first and a second prosthesis part, in particular of a tibial and a femoral trial prosthesis for trial arrangement on the corresponding bones, wherein the connection device has a first connection element and a second connection element. The first connection element has inner walls, serving as a guide, and a mating piece and serves for arrangement on the first prosthesis part, and the second connection element is enclosed at least in part by the inner walls of the connection element and is movable in a displacement direction along the inner walls relative to the first connection element and has a groove for receiving a portion of the second prosthesis part.

Abstract: A void filling prosthesis, which includes first and second ends that define a length therebetween and outer and inner surfaces that define a sidewall therebetween. The sidewall is at least partially curved about an axis that extends along the length of the prosthesis. The prosthesis also includes a fixation prominence extending from the outer surface. The fixation prominence includes a first aperture extending in a direction toward the sidewall and a second aperture extending in a direction transverse to the sidewall.

Abstract: Surgical instruments and methods for use in implanting a modular femoral prosthesis during performance of a hip revision procedure are disclosed, and include a distal reamer operable to ream an intramedullary canal of a patient's femur during a surgical procedure. The distal reamer includes an elongated shank having a cutting head formed in a distal end of the elongated shank and a drive connector formed in a sidewall positioned at an opposite, proximal end of the elongated shank. The cutting head has a plurality of helical cutting flutes arranged in a geometry that corresponds with the geometry of the distal stem component. The drive connector has a female drive socket and a number of locking slots formed in the sidewall so as to open into the female drive socket.

Abstract: An Intramedullary Distraction Osteotomy (IM DO) apparatus and corresponding methods are disclosed that allow for the patient or another to lengthen residual bone. The apparatus may be inserted into the intramedullary canal of the residual bone and may be lengthened through the application of a traction force. The apparatus protrudes from the body through a single percutaneous site. Lengthening of the amputated limb is achieved by the application of a controlled traction force that is generated by turning a lengthening knob external to the percutaneous site. One or more additional screw segments may be utilized to assist in limb lengthening. The traction force serves to separate a distal bone segment from a proximal bone segment at a specified, controllable rate, allowing new bone growth to fill in the resulting gap. Components of the apparatus provide support and alignment to the residual bone during both the lengthening and consolidation phases.

Abstract: An implant for a hip can include a lateral augment adapted to be coupled to a lateral side of a femoral body implant. The lateral augment can include a body portion having a first surface, a second surface opposite the first surface, and a protrusion extending from the second surface. The protrusion can have a shape adapted to mate with a complementary shaped recess formed in the lateral side of the femoral body implant. An aperture can be positioned in the body portion and extend through the protrusion. A fastener can be received through the aperture and adapted to be threadably secured to the lateral bore. The fastener can be configured to have a length sufficient to pass through a portion of a greater trochanter for securing the portion of the greater trochanter and the lateral augment to the femoral body implant.

Abstract: A bone implant including a peg component for fixing the implant into a bone, a body component for abutment with a mating bone implant and a coupling to allow releasable connection between the peg component and the body component.

Abstract: Disclosed is an orthopedic implant that includes an anchor, a bore, and a compressible and expandable mesh. The anchor is configured to secure the implant at an implantation site and defines a longitudinal axis. The bore is defined by the anchor and extends along the longitudinal axis. The compressible and expandable mesh is aligned along the longitudinal axis and defines a plurality of openings. The mesh is configured to compress along the longitudinal axis and expand from the longitudinal axis to engage surrounding bone or tissue at the implantation site to secure the implant at the implantation site.

Abstract: The present invention is directed to a prosthesis for an arthroplasty in a long bone and a methods for achieving a press fit of the metaphyseal element of the prosthesis into a metaphysis of the long bone and the extraction of the prosthesis when indicated. The prosthesis includes a metaphyseal element attached at a proximal end of a stem, the metaphyseal element of the prosthesis is configured to optimize placement of bone marrow about, and in some embodiments, within the metaphyseal element to achieve a press-fit in the metaphysis of the long bone. The prosthesis also includes one or more apertures formed in the joint base member of the prosthesis. Preferably each slot includes a frangible wall which is readily penetrated to accommodate passage of an osteotome of other tool to break the metaphyseal element free from bony in-growth that occurs against the metaphyseal element.

Abstract: A femoral component of a hip implant, where the femoral component may be used specifically in a neck sparing resection and may include a shortened stem (with respect to a conventional stem) having a terminal flare portion for internally contacting a medial calcar portion of the proximal femur, and a significant curvature on its medial side. Other features of the femoral component include, flat side portions on the anterior and posterior sides of the stem, a lateral fin or a wing or T-back to aid in resisting torsional forces. The femoral component may also include a sagittal slot for proper fitting and placement in the femoral canal. The femoral component may also include a neck component that is modular with respect to the stem component. A head component, whether monoblock or modular with respect to the neck component, may also be utilized as part of the femoral component.

Abstract: A femoral prosthesis for use during performance of a hip replacement procedure includes a plurality of femoral stem components in a range of various sizes and a plurality of femoral head component in a range of various sizes. The anterior/posterior stem taper angle of the femoral stem component varies across its range of sizes.

Abstract: An implant for a hip can include a lateral augment adapted to be coupled to a lateral side of a femoral body implant. The lateral augment can include a body portion having a first surface, a second surface opposite the first surface, and a protrusion extending from the second surface. The protrusion can have a shape adapted to mate with a complementary shaped recess formed in the lateral side of the femoral body implant. An aperture can be positioned in the body portion and extend through the protrusion. A fastener can be received through the aperture and adapted to be threadably secured to the lateral bore. The fastener can be configured to have a length sufficient to pass through a portion of a greater trochanter for securing the portion of the greater trochanter and the lateral augment to the femoral body implant.

Abstract: A modular, adjustable, prosthetic hip/shoulder spacer adapted to being implanted in the hip or shoulder joint; the spacer comprises a frame that supports a rotatable cylinder from which a neck extends with the ball element of the joint attached to its end, and rotating the cylinder reposition the ball in the socket; the stem is connected to the base of the frame and is implanted in the long bone (femur or humerus); the stem may be modified to include a system for delivering medication to the implantation site following surgery. The stem leg and stem base may be modified to form a modular unit to adjust the relation between a center line of the stem leg and a center line of the frame and position of the neck and ball.

Abstract: Apparatus and methods of protecting modular implant connection portions are provided. A guard includes an outer sidewall and an inner sidewall defining a cavity that covers a modular implant connection portion. The modular implant connection covered with the guard can facilitate test-fitting of other modular implant components and allows reaming of the tissue around the guard.

Abstract: An anatomic prosthetic femoral implant system has a series of modular part-spherical heads and between 4 and 8 femoral component size groups. Each size group has only four components, two left and two right hip implants. One right and one left component being neutral in version and one right and one left being anteverted at an angle producing a head offset of between 4 and 5 mm from neutral. The head offset remains in this 4-5 mm range through all the size groups in the system. It has been found that a large proportion of the target patient population can be served by such a system.

Abstract: Apparatus and methods of protecting modular implant connection portions are provided. A guard includes an outer sidewall and an inner sidewall defining a cavity that covers a modular implant connection portion. The modular implant connection covered with the guard can facilitate test-fitting of other modular implant components and allows reaming of the tissue around the guard.

Abstract: The method of accurately and correctly fitting and axially positioning at implantable ball to the neck trunnion of a hip replacement device, as during surgery, the ball adapted to be received in a socket, the ball having a bore, the method including the steps providing the neck trunnion with deformable metallic surface ribs, providing a deformable adapter and fitting the adapter over the ribs, providing a trial ball having a non-metallic bore, and including axially forcibly fitting that bore over the deformable adapter to deform the adapter without deforming the ribs, as the trial ball adjustingly arrives at selected axial position on the neck trunnion corresponding to correct position of the trial ball in the socket, and correspondingly subsequent correct axial positioning of the implantable ball on the neck trunnion.

Abstract: The present teachings are directed to a shoulder prosthesis having an adjustable radial offset and/or angular inclination provided by relative rotation of an adapter interdisposed between a stem and a head. In one example, a prosthesis has a stem having a first longitudinal axis. The prosthesis can also include an adaptor including a first taper. The first taper can have a first taper axis. The prosthesis can include a head supported by the adaptor. The head can be selectively oriented and then coupled to the first taper and the combination can be selectively orientated and the coupled to the stem.

Abstract: A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Abstract: An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.

Abstract: A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Abstract: A femoral prosthesis for use during performance of a hip replacement procedure includes a plurality of femoral stem components in a range of various sizes and a plurality of femoral head component in a range of various sizes. The anterior/posterior stem taper angle of the femoral stem component varies across its range of sizes.

Abstract: Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

Abstract: The invention relates to an intramedullary linkage device for treatment of peri-prosthetic long bone fractures, system for long bone fracture treatment in the setting of pre-existing intramedullary implant using an intramedullary linkage device and intramedullary fracture fixation device, and methods of treating peri-prosthetic long bone fracture in the setting of pre-existing intramedullary implant using an intramedullary linkage device and intramedullary fracture fixation device.

Abstract: The present disclosure provides a femoral prosthesis for use during a revision procedure. The femoral prosthesis includes a body, a neck, a stem, and a sleeve. The sleeve facilitates reattachment of an osteotomized proximal femur, specifically the greater trochanter, following a revision femoral prosthesis surgery involving an extended trochanteric osteotomy. Additionally, the sleeve promotes ingrowth of the osteotomized proximal femur with the sleeve.

Abstract: Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

Abstract: A femoral prosthesis for use during a revision procedure includes a proximal body, a distal stem, a modular neck, and a head. In operation, a surgeon may stabilize the proximal body and the distal stem of the prosthesis in a patient's femoral canal that has moderate loss of metaphyseal cancellous bone (known as a Paprosky Type I femoral defect), extensive loss of metaphyseal cancellous bone (known as a Paprosky Type II femoral defect), or extensive metaphyseal deterioration and some diaphyseal deterioration (known as a Paprosky Type IIIA femoral defect). Without disturbing this arrangement, the surgeon may then position the head in a desired location by selecting a desired modular neck to obtain proper joint kinematics.

Abstract: The method of accurately and correctly fitting and axially positioning at implantable ball to the neck trunnion of a hip replacement device, as during surgery, the ball adapted to be received in a socket, the ball having a bore, the method including the step providing the neck trunnion with deformable metallic surface ribs, providing a deformable adapter and fitting the adapter over the ribs, providing a trial ball having a non-metallic bore, and including axially forcibly fitting that bore over the deformable adapter to deform the adapter without deforming the ribs, as the trial ball adjustingly arrives at selected axial position on the neck trunnion corresponding to correct position of the trial ball in the socket, and correspondingly subsequent correct axial positioning of the implantable ball on the neck trunnion.

Abstract: The invention relates to modular joint prostheses, comprising a curved head part to the conical pins of which a slip-on joint ball is attached, and comprising a nail which can be inserted into the bone marrow canal of the long bone and has a nail neck, wherein a connecting means is provided between the head part and the nail neck which holds the head part in a non-rotatable manner. The connecting means comprises at least one collar-like module which is located in the axial direction of the nail and has at least two semi-shells, which are divided in the axial direction of the module, are detachably connected to each other, form an axially extending passage for inserting the nail head into the passage and have recesses for receiving a tensioning means, which in the tensioned state fixes the nail head in the passage exclusively by way of factional engagement.

Abstract: A seal for preventing a bodily fluid from penetrating an orthopedic implant comprising a tapered section adapted to conformingly mate to a stem of a first implant component, and a collar section extending from and circumferentially surrounding a portion of the tapered section, the collar section adapted to mate to a base of a second implant component such that the tapered section and collar section define an opening therethrough configured to receive the first implant component.

Abstract: Methods and apparatus for orthopedic replacement of the hip and hip fracture fixation devices include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly. For example, a prosthetic femoral neck implant can include a thread and a Morse taper for lockable attachment to a prosthetic femoral head and/or intramedullary stem.

Abstract: An implant for a hip can include a lateral augment adapted to be coupled to a lateral side of a femoral body implant. The lateral augment can include a body portion having a first surface, a second surface opposite the first surface, and a protrusion extending from the second surface. The protrusion can have a shape adapted to mate with a complimentary shaped recess formed in the lateral side of the femoral body implant. An aperture can be positioned in the body portion and extend through the protrusion. A fastener can be received through the aperture and adapted to be threadably secured to the lateral bore. The fastener can be configured to have a length sufficient to pass through a portion of a greater trochanter for securing the portion of the greater trochanter and the lateral augment to the femoral body implant.

Abstract: A surgical device includes a first portion and a second portion. The first and second portions are releasably connected together by cooperating first and second formations. The first formation may be formed on the first portion. The second formation includes a resilient arm which is formed on the second portion and engages the first formation on the first portion. The resilient arm may be integrally formed with the second portion.

Abstract: In a human hip replacement process, the steps include providing a selected size generally longitudinally extending stem and laterally angled neck, the stem received endwise into a recess in an elongated femur, there being a ball on the neck, the neck and stem having a non-circular tongue and groove interfit connection to resist relative rotary displacement therebetween, the connection defining a generally longitudinal axis, fitting the ball in a socket on a hip bone, to pivot in the socket, the selection of stem and neck, and tongue and groove connection between the size selected stem and neck, enabling accurate pivoting of the ball. A set of different size balls and neck units are enabled for selective choice, as during surgery.

Abstract: A component is configured for implantation during a total hip replacement procedure being performed on a patient having an anterior and posterior. The component includes a stem configured for intraosseous femoral implantation. The stem has a distal end configured for femoral insertion and a proximal end opposite the distal end. The component has a neck attached to the stem at a neck-stem junction. The neck has a proximal end proximate the neck-stem junction and a distal end opposite the proximal end. The neck is configured for extraosseous implantation. The component also has a head attached to the neck proximate the distal end of the neck. The head is configured for coupling with a ball configured for coupling with a socket implanted in an acetabulum of a pelvis of the patient during the procedure, thereby forming a total hip replacement. The head is anteriorly offset relative to the stem.

Abstract: A prosthesis comprising an elongated stem for disposition within a cavity formed in a bone, the stem comprising a longitudinal axis and being configured for incremental controlled expansion laterally of the longitudinal axis, whereby to secure the prosthesis within the cavity by means of a press-fit with the surrounding bone.

Abstract: A method for selecting modular neck components for hip implants based on independent variables associated with physical characteristics of the implant, including leg length, offset, and anteversion. During surgery, the surgeon may be confronted with a need to change a preoperatively-chosen modular neck. For example, the surgeon may desire a change in at least one of the variables, e.g., leg length, offset, and/or anteversion. The present method allows the surgeon to quickly and easily select a different modular neck based on an evaluation of one of the variables without requiring reevaluation of the other variables. The method may include preoperative planning in which a template including a grid coordinate system is used.

Abstract: A femoral implant includes a main shaft with a proximal end and a smooth distal end. A porous circumferential collar is provided between the proximal end and distal end, and a porous distally-extending portion extends distally from the collar to provide for additional bone ingrowth.

Abstract: A modular femoral hip implant trialing system. The system generally includes a proximal body, a fastener, and a fastener retention member. The proximal body includes a proximal bore, a tapered distal bore, and a passageway connecting the proximal bore to the distal bore. The proximal bore, the distal bore, and the passageway are aligned along a first axis. The fastener includes a head in the proximal bore and a stem in the distal bore, the fastener is aligned along the first axis. The fastener retention member is positioned in the proximal bore and is operable to retain at least a portion of the fastener within the proximal bore.

Abstract: A prosthetic femoral stem component includes a body element, a neck element and a stem element. The body element, neck element and stem element are secured to one another with a modular connection, the modular connection having a taper junction and an engaged-fit junction. The engaged-fit junction is formed by interaction of first and second concentric walls, the first concentric wall being formed on a shaft of the neck element and the second concentric wall being formed along a portion of a sidewall defining an aperture extending through the body element.

Abstract: A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Abstract: A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed.

Abstract: A pre-assembled orthopaedic implant adapted for improved gas sterilization. The implant includes a first component adapted for assembly with a second component such that a mating surface of the first component is in close proximity with a mating surface of the second component. At least one gas conduit associated with the mating surface of the first component facilitates a sterilizing gas to penetrate into and dissipate from the interface defined by the mating surfaces.

Abstract: An elongate, longitudinally oriented outer sleeve includes an outer sleeve surface defining a radially oriented proximal sleeve border, a radially oriented proximal sleeve rim intersecting the outer sleeve surface at the proximal sleeve border, an outer sleeve body enclosed by the outer sleeve surface and the proximal sleeve rim, and an elongate, longitudinally oriented stem-receiving cavity formed in the outer sleeve body and intersecting the proximal sleeve rim to define a stem-receiving aperture. A joint articulating member includes an elongate, longitudinally oriented stem, an articulating surface, and an interface rim. When the stem is at least partially inserted into the stem-receiving cavity, the proximal sleeve rim and the interface rim interact to change a longitudinal relationship between the outer sleeve and the joint articulating member responsive to relative radially-oriented rotation between the stem and the stem-receiving cavity.

Abstract: A total hip femoral prosthesis provides high lateral offset with a construct including a conventional length neck. The neck is shifted medially to position the head center in a high offset location. The proximal medial portion of the stem is augmented to provide adequate support to the medialized neck. Modular components are disclosed. Methods of using the prosthesis in total hip arthroplasty are described.

Abstract: A bone stabilizing apparatus includes a stem member and an extension member, the stem member having a distal end for insertion within the intramedullary canal of a human humerus and the proximal end connected to the extension member. The extension member has radially directed threaded holes either pre-formed or created after the bone stabilizing apparatus is installed into the humerus. The threaded holes allow fixation of stabilizing screws with suture posts, or a washer structure to grip the surface of the bone and/or surrounding ligaments or muscle. A prosthetic or the natural humeral head can be attached to the extension member. In a preferred embodiment a guide structure directs the drill and stabilizing screws radially through the central axis of the extension member.

Abstract: A proximal femoral prosthesis minimizes impingement, thereby affording an enhanced range of motion as compared to existing devices. The central portion of the neck of a prosthesis according to the invention is oriented distally relative to a straight line drawn between the ball portion and a point of interconnection to the exposed portion of the stem. Such a configuration reduces impingement in flexion/internal rotation and extension/external rotation, assuming an appropriately placed acetabular component. In the preferred embodiment, the neck is curved between the head and the neck. In alternative embodiments, the neck may be provided in straight and/or modular segments. The invention is compatible with neck-shaft angles, offsets, head sizes, and other dimensions commonly designated with respect to available implants.