JP3097061B2 - Artificial pelvis - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an artificial pelvis. In particular, the present invention relates to an artificial pelvis obtained by molding a high-hardness molded material having a surface coated with a tissue membrane into a specific shape. Furthermore, the present invention relates to an artificial pelvis in which a pelvic artificial bone (molded body) is formed into a specific shape, and at least a part of the surface of the artificial bone is coated with a tissue membrane.

[0002]

2. Description of the Related Art In a conventional artificial pelvis, it is not possible to disperse a compressive load and a tensile force to lower limbs better than a trunk. In addition, even if the artificial pelvis is screwed and fixed using bone cement, loosening is likely to occur, and further, the artificial hip joint used in accordance with the artificial pelvis is easily dislocated. There has been a need for a way to solve this problem.

[0003] That is, the acetabular part of the pelvis plays an important role of transmitting the load from the trunk to the lower limbs. Therefore, due to the invasion of the pelvic acetabular bone tumor and its surrounding soft tissue tumor,
As a complication of a hip prosthesis, a large bone defect in the acetabular part due to loosening of the socket, or a failure in the load of the acetabular part due to trauma or bone inflammatory disease causes a serious gait disorder to the patient. In the conventional artificial bone structure, for such a problem, an artificial pelvis made of metal or alumina ceramics is combined with an artificial hip joint, or an artificial hip joint is formed in a sacroiliac joint without using an artificial pelvis. However, it was not satisfactory in terms of loosening, dislocation of the hip joint, leg length difference, cosmetic problems, and the like.

Further, Japanese Patent Application Laid-Open No. Hei 2-3
As disclosed in No. 1750, there is a shape corresponding to a loaded artificial pelvis, but it is still insufficient to support the weight of the body.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the artificial pelvis and to provide an artificial pelvis having a structure capable of well distributing body weight and tensile force to lower limbs. I do. That is, an object of the present invention is to provide a structure in which an artificial hip joint adapted to an artificial pelvis does not easily dislocate. Further, the present invention promotes the growth of the gluteus muscle,
An object of the present invention is to provide an artificial pelvic structure that can be biologically fixed, stabilizes the artificial pelvis over time, and can prevent dislocation of the artificial hip joint. Further, the present invention aims to provide an artificial pelvis in which soft supporting tissues such as muscles and tendons can be easily reconstructed and exert a good biological function, and to perform pelvic reconstruction with aesthetics. I do.

[0006]

In order to solve the above technical problems, the composite molding material of the present invention comprises a molded body of high hardness, and an upper part of the molded body is inserted inside the periosteum. It has three wings that sandwich and hold the iliac wing, two of which are on the outside and one is on the inside, and have a flat surface that mainly holds the load applied from the iliac wing. At the center of the three wings, and the outer wing is
It has a wide head so that the gluteal muscles can grow and act on it so that the load can be distributed, and the above-mentioned three wings and the weight holding part are provided on the base. And at its base has a socket for a hip joint, the face of which is inclined at about 45 degrees with respect to the vertical, at a anteversion angle of about 10 degrees, and An artificial pelvis is provided, which has a long protrusion and an ischial-shaped portion for connecting to a connection. and it is,
Most of the surface is made of a high-hardness molded body with a tissue membrane included in advance. The upper part of the formed body has three wings that are inserted inside the periosteum and hold the iliac wing between them. Two are on the outside and one is on the inside, having a plane in the center of the three wings that mainly holds the load from the iliac wing, and the outer wing The department is
It has a wide head so that the gluteal muscles can grow and act on it so that the load can be distributed, and the above-mentioned three wings and the weight holding part are provided on the base. And at its base has a socket for a hip joint, the face of which is inclined at about 45 degrees with respect to the vertical, at a anteversion angle of about 10 degrees, and An artificial pelvis is provided, which has a long protrusion and an ischial-shaped portion for connecting to a connection. In that case, the tissue membrane is a woven, knitted, felt, reticulated or non-woven fabric made of at least one fiber selected from polyamide fibers, polyester fibers, polyolefin fibers, polyfluorocarbon fibers or carbon fibers. Web or film, the same or different dura mater, fascia, periosteum treated membrane or collagen-made fabric, knit,
It is preferable to use a material selected from felt or mesh. The tissue membrane is made of polystyrene, ABS resin,
Methacrylic resin, vinyl acetate fiber, cellulose resin, polycarbonate, polysulfone, silicone resin, chlorosulfonated polyethylene, phenol resin, urea resin, melamine resin, xylene resin, polyester resin, Fabrics and knits made of at least one material selected from the group consisting of epoxy resin, polyurethane resin, polyimide, polyethylene, polypropylene, polyvinyl chloride, AS resin, polyamide, polyacetal, PET resin, PBT resin, and polyphenylene resin ,
Suitably, it is a felt, mesh or non-woven web or film. As the high hardness molding material, it is preferable to use, as a main structural component, at least one selected from polycrystalline alumina, hydroapatite, other ceramics, carbon, metal, alloy and hard organic synthetic resin. .

The artificial pelvic structure according to the present invention is as follows. That is, it is made of a high-hardness molded body, and has three wings inserted on the inner side of the periosteum and holding the iliac wing therebetween, two of which are on the outside, One is on the inside, has a plane at the center of the three wings, which mainly holds the load applied from the iliac wing, and the outer wings are designed to allow load distribution. , Having a wide head so that the gluteus muscle grows and acts thereon, and the above-mentioned three wings and the weight holding part are provided on the base thereof,
At its base, there is a socket for the hip joint, the face of which is inclined about 45 degrees with respect to the vertical, at an angle of anteversion of about 10 degrees, and a long projection which connects with the pubic symphysis It is an artificial pelvis having a part and an ischial-shaped part. And
The artificial pelvis of the present invention is composed of a high-hardness molded body having an acetabular portion, a iliac load holding plane portion, a iliac fixing wing portion (projection portion), a pubic bone connecting portion and an ischial shape portion, Most of its surface is included in advance by a tissue membrane, and the iliac fixing wings are capable of dispersing the load,
It has a wide head so that the gluteal muscles grow and act on it, and the acetabular part has a socket for the hip joint, and the surface of the socket is vertically A tilt of about 45 degrees, at a anteversion angle of about 10 degrees, and extending from the acetabulum portion to the pubic connection portion, wherein the ischial-shaped portion extends downwardly from the acetabular portion. At least one of the fixing wings extends outwardly, and at least one of the wings extends inwardly to support the human iliac portion.

[0008] In addition, a material obtained by coating most of the surface of a high-hardness molding material such as ceramics with a tissue film in advance is used as a part or all of an artificial aggregate. The acetabular part of the human pelvis plays an important role in transmitting weight from the trunk to the lower limbs. Therefore, a bone tumor is formed in the pelvic acetabular bone, or a soft tissue tumor in the vicinity of the pelvic acetabular bone is formed. The pelvic pelvis is destroyed by the invasion of the pelvic pelvis. Giving a large bone defect to the part or disrupting the load on the acetabular part due to trauma or bone inflammatory disease can result in significant gait disturbance for the patient. Conventionally, a metal or alumina ceramic artificial pelvis has been used in combination with an artificial hip joint to solve such a problem. Alternatively, an artificial hip joint has been formed in the sacroiliac joint without using an artificial pelvis, but none of them has been satisfactory with respect to looseness, dislocation of the hip joint, difference in leg length, and cosmetic problems.

According to the present invention, an artificial pelvis was developed using a molded article made of a hard molding material such as alumina ceramics or an apatite sintered body, and an artificial pelvis having a configuration for preventing dislocation of an artificial hip joint was also invented. Things. That is, an artificial pelvis is formed from alumina ceramics, and the formed artificial pelvis is formed of polyethylene terephthalate (polyethylene terephthalate).
Thylene terephthalate (specifically, using Dacron fabric), and the artificial hip joint was formed by wrapping it in a sleeve shape, and satisfactory results were obtained as an artificial pelvis.

The material of the artificial pelvis of the present invention includes stainless steel, titanium and titanium alloys, tantalum, nickel-chromium alloy, nickel-chromium-cobalt alloy, cobalt-chromium-molybdenum alloy, and ceramics which are usually used as biomaterials. At least one selected from the group consisting of carbon, carbon, metal, alloy and hard organic synthetic resin can be used as a main component. Among them, polycrystalline alumina (hereinafter referred to as alumina ceramics) is preferable.

Next, the artificial pelvic structure of the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an artificial pelvis according to the present invention will be described with reference to FIG. That is, the artificial pelvis 1 of the present invention comprises the acetabular part 2,
Iliac weight receiving flat part 3, three fixing wings (tongue) 4,
5, 6, a pubic connection 7 and an ischial portion 8 are provided. As shown in the figure, the artificial pelvis of the present invention has three wings or projections.
To increase the interface with the human pelvis and iliac support surface. However, there is a limit to increasing the number of joints, that is, if the number of joints is large, the possibility of causing malnutrition is increased, which is inconvenient. Therefore, in the artificial pelvis 1 of the present invention, the wings 4 and 5 are fixed to the back of the iliac bone 10, and at the same time, as shown in the figure, a wide head is provided so that the gluteal muscles can easily develop and grow thereon. A portion 28 is provided. Gluteus muscles can grow on the surface of the wide head 28. Further, the wing has a narrow neck 29 with respect to its wide head 28.

Further, the ischium portion 8 has a concave portion 22 in which the socket of the artificial hip joint can be anchored with methyl methacrylate or bone cement.
It is easily stabilized. That is, the socket is structured so that it is anchored at an angle of about 45 ° to the sagittal plane of the human pelvis and about 10 ° torsion.

Further, the artificial pelvis 1 of the present invention comprises
The pubic symphysis connection part 7 can also be formed into a shape close to a living body. However, in the molded body for the artificial pelvis, the closing hole is
Although not required, it is preferred that the portion 7 (ie, the pubic junction) be slightly lower in order to avoid obstruction of the obturator nerve passage so that the obturator can pass above it. Also, if you can save some of the human pubic bone and sciatic bone,
Accordingly, it is preferable to reduce the number of protrusions of the pubic connection portion 7 and the ischial portion 8 of the molded product for an artificial pelvis according to the present invention.

In the artificial pelvis 1 of the present invention, two holes (9) are provided for fastening to the iliac bone and the pubic bone, and about 3 mm in the artificial bone for the pubic bone connection. Two wings (9) are formed in the part wing portion 5 and fastened to the pubic joint 16 and the iliac 17 through the holes with a wire or a resin thread or tape.

FIG. 2 is a front view showing an application state in which the artificial pelvis 1 of the present invention is used as a part of the human pelvis 10. That is, the human pelvis 10 for joining the artificial pelvis
Shows the osteotomy (cut surface) 11 of the pelvis
2 to the lower end of the superior anterior iliac spine 13 from the upper end of the sacrum 1
It is almost straight up to 4. In other words, the weighting surface 20 can be loaded widely at a straight portion (plane) as indicated by a dashed line. The wings 4, 5, and 6 for fixing the molded body (artificial bone) of the present invention wrap the iliac wing 15 extending above the iliac load portion 3 from the outside under the periosteum. The lengths 4 and 5 of the wings are set to a length that goes beyond the attachment of the gluteus medius and ends at the attachment of the gluteus medius. For a normal adult patient, it is preferably about 5 cm long. However, there is some increase or decrease in length depending on the size of the patient.

Further, the wings 4, 5 are fixed to the gluteal side of the iliac wing 15 and are wrapped by the periosteum, and the gluteal muscles adhere to the wide wing head 28 according to the present invention over the surface, When grown, the contact area increases and the load is easily dispersed. That is, even the gluteal muscles bear the load, and the stress can be dispersed. That is, the structure of the artificial pelvis of the present invention has improved the effect of fixing biological drops. Further, in the artificial pelvis of the present invention, the neck portions 29 of the wing portions 4, 5 are thin. This is to minimize the contact area so as not to cause iliac nutritional disorders.

In other words, the feathers 4 and 5 of such a molded body (artificial bone) of the present embodiment have the femoral head buried in the gluteal muscle and are mainly used in the treatment of congenital hip dislocation. It supports weight with muscles, but there is lameness due to differences in leg length,
Conversely, the focus is on the finding that the hip joint has good support and little pain. That is, two blades 4,
5 is buried in the gluteal muscles, distributing a part of the load of the load, and plays an important role in stabilizing the artificial pelvis. Further, the structure in which the wings 4 and 5 are exposed to the outside is advantageous in dispersing the load force with the fixing wings 4 and 5 because the force that pushes the artificial pelvis 1 in the direction of the pelvic cavity 18 due to the load is applied. It is to make things. One wing 6 inside
This is because three wings of the iliac wing 15
This is because stable support can be obtained by supporting and fixing at points. The inner blade 6 may be short, since a relatively small load is not applied to the inner blade 6. For a normal adult, a protrusion of at most 2-3 cm is sufficient.

Further, the surface of the artificial pelvis of the present invention is covered with a tissue membrane, for example, a Dacron fabric, and the surface of the artificial pelvis is joined to the outer biological tissue, for example, a muscle or soft tissue. Since it is in contact, it is suitable for inducing the growth of living tissue such as the gluteal muscle tissue. Therefore, in the structure of the artificial pelvis of the present invention, even when bone resorption occurs at the osteosynthesis, the weight is dispersed by biological fixation such as growth of the gluteal muscle tissue, and a new weight (load) is obtained.
It is a balance.

That is, in the artificial pelvis of the present invention, it can be used as a tissue membrane as a whole surface encapsulating junction membrane, and it is preferable that the artificial pelvis has a shape in which a part is peeled off as necessary. In this embodiment, a cloth made of polyethylene terephthalate is used as the tissue membrane, and a trade name of dacronfabric (dacronfabric) is used.
ric), but it is possible to maintain the stability of the artificial pelvis by wrapping with various tissue membranes. That is, in the conventional artificial pelvis, when bone resorption occurs, it leads to "looseness" and causes serious complications. However, in the method for fixing the artificial pelvis of the present invention, "looseness" causing complications is caused. Does not occur. That is, first, the artificial pelvis of the present invention has a structure similar to the sacroiliac joint of a living body, that is, the alumina ceramics and the osteosynthesis allow a certain degree of mobility,
The tissue membrane (polyethylene terephthalate fabric) is connected and integrated with a strong connective tissue via an inclusion membrane.

The acetabular lid 2 of the artificial pelvis of the present invention is easily stabilized because it is anchored to the socket 22 of the artificial hip joint with methyl methacrylate, ie, bone cement. That is, the socket 22 is structured such that it is anchored at an angle of about 45 ° to the sagittal plane of the human pelvis and at an angle of about 10 ° of anteversion.

The tissue membrane (inclusion membrane) for wrapping the bone (molded body) used in the artificial pelvis of the present invention includes polyamide fibers, polyester fibers, polyolefin fibers, and the like.
Fabrics, nets, felts, nets, nonwoven webs and films made from at least one of the group consisting of polyfluorocarbon-based fibers and carbon fibers can be used. Alternatively, a cerebral dura mater, a fascia, a woven fabric made of collagen fibers, a net, a felt, or the like of the same or different kind can be used.

In this embodiment, a woven fabric made of polyethylene terephthalate fibers, that is, a Dacron fabric (USC: USCI, Dobey Double Velor Dacron Fabric and Dobey.
Elastic Dacron Fabric: registered trademark) was used. At present, it has been demonstrated that the biomaterial is widely used as an artificial blood vessel in vascular surgery, is excellent in safety, and is excellent in autologous tissue guiding ability. Specifically, the thickness is 1.40 mm or 0.60 m
m, porous 3,000cc or 4,500, size 1
Using a 5 × 15 mm Dacron fabric, a nylon thread was used to fasten and suture each tissue of the human pelvis. Of course, these materials were used after sterilization. On the other hand, in the conventional artificial pelvis, bolts,
However, fixation did not work well in the pelvis, causing loosening over time, complications,
Inconveniences such as fractures occur, and once loosened, replacement is inevitable.

According to the structure of the artificial pelvis of the present embodiment, the artificial bone is wrapped with the Dacron fabric, an artificial pelvis is formed, and the portions of the load portions and the wings that come into contact with the human bone are cut off from the Dacron fabric. Alumina ceramics and bone were in direct contact. In addition, in the artificial joint, the artificial joint inclusion molding was performed to prevent dislocation and departure at the joint. When used for reconstructive surgery of tissue in vivo, this Dacron fabric acts as a scaffold, and after three to four months, the neonatal autologous tissue is organized over time, resulting in the ultimate organization. Forms biologically new bone tissue. In other words, the Dacron fabric can be sutured to the living tissue using a nylon thread or the like, and can be easily fastened to the living body.

Via the Dacron fabric wrapping the artificial bone molded body 1, muscle attachment parts (recto-thigh muscle, adductor muscle group, etc.), ligaments (sacral knotty ligament, sacral spine ligament, etc.), hip joint capsule, periosteum The stability and muscular strength of the post-operative artificial pelvis recovered over time, and an ideal living body could be reconstructed. In other words, the patient is able to walk alone without pain after the operation, and hardly interferes with the operation of daily life.

That is, since the artificial pelvis of the present invention is integrated into the living body, the morphogenesis factor (bone morphogene) is added to the encapsulating body.
It is still more preferable to impregnate a substance capable of inducing autologous tissue such as tic protein (BMP) or collagen fiber. The tissue membrane (inclusion membrane) used to join the surfaces of this molding material includes:
In addition to artificial tissue membranes and fabrics such as the Dacron fabric described above, for example, cloth, fabric woven with collagen fibers, or the same or different dura mater, fascia, and periosteum are treated. In addition, an envelope bonding membrane can be used. Specifically, depending on the case, if the tumor lesion, trauma or inflammation of the bone spreads over the acetabular wing, the iliac osteotomy (that is, the cut surface 11, Although the iliac load 3) changes, the artificial pelvis may be arbitrarily changed according to the form, and the cut surface 11 may be adjusted. For example, it is changed as shown by a chain line 21. At this time, it plays an important role in loading a load on the iliac 13 and a part 14 of the sacrum at the lower end of the sacral joint above the large ischial foramen 12.

In order to integrate the above-mentioned artificial pelvis into a living body, an osteoinductive factor (bone morp
It is still more effective to impregnate substances that induce autologous tissue, such as hogenetic protein (BMP) and collagen fibers.

The molding material used in the present invention is a molding using a ceramic molding material such as an alumina sintered body or an apatite sintered body, or a molding material having a high hardness such as a metal powder molding material. By using a material having high hardness such as ceramics as a molding material, a material having high wear resistance can be obtained.

FIG. 3 is a perspective view of the artificial pelvis of the present invention as viewed from the side of the joint recess 22 for the hip joint member (femur). That is, as described above, the artificial bone 1 of the molded body has the wings 4, 5, and 6 in contact with the human pelvis for supporting the artificial bone. Two of the wings 4, 5 are in contact with the outside of the iliac wing, and one wing 6 is in contact with the iliac sacral joint, the inside of a part of the sacrum. The part of the wing that comes into contact with human bone has no clathrate (tissue membrane), facilitating bonding with the bone. The weight of the body is supported by the iliac weight 3. The acetabular part 2 is provided with a hole 22 into which the hip joint member is fitted. Underneath is a sciatic-shaped part 8 corresponding to the sciatic, with a pubic symphysis connection 7 extending to fasten with the pubic symphysis. Then, the above-mentioned inclusion membrane for covering the hip joint members (not shown) and the pubic bone connection part 7 can be provided. In other words, the pubic bone was fastened and fixed, and was covered with a sleeve-shaped Dacron fabric, thereby assuring a stronger fixation.
Further, in order to form the hip joint with the artificial hip joint, the artificial hip head is wrapped in a sleeve shape so that dislocation is easily prevented.

As the clathrate used in the artificial pelvis of this embodiment, USCI-made Dovekey Double Velor Dacron Fabric or Dovekey Elastic Dacron Fabric was used. In addition, as a high hardness molding material, in addition to alumina ceramics, zirconia,
Ceramics obtained by combining silicon nitride, sialon, silicon carbide, and these different materials can be used. Further, as the metal material for this, titanium, a titanium alloy, stainless steel, a cobalt-chromium-molybdenum alloy, a shape memory alloy or the like or carbon can be used.

[0031]

As described above, the artificial pelvis of the present invention provides, as described above, an artificial pelvis capable of more effectively dispersing the compression load and the tensile force to the lower limbs from the trunk than the conventional artificial pelvis. Secondly, the present invention has a technically remarkable effect such as providing an artificial pelvis capable of providing an artificial hip joint which is less likely to loosen and is less likely to dislocate without using screws or bone cement.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a shape of an artificial pelvis of the present invention.

FIG. 2 is a front view showing a state when the artificial pelvis of the present invention is applied to a human.

FIG. 3 is a perspective view of the shape of the artificial pelvis of the present invention as viewed from the side opposite to FIG.

[Description of Signs of Main Parts]

1. . . . Artificial pelvis 2. . . Acetabular part 3. . . . Iliac loading part 4,5,6. . .
Fixing blade 7. . . . 7. Pubic connection . . 8. Sciatic part . . . Wire hole 10. . . Human pelvis 11. . . Cut surface 12. . . Large sciatic notch 13. . . Superior anterior iliac spine . . Sacrum 15. . . Iliac 16. . . Pubis 17. . . Iliac wing 18. . . Pelvic cavity 20. . . Weighted surface

Claims (7)

(57) [Claims] 1. A molded body having a high hardness, the upper part of which has three wings inserted into the periosteum and holding the iliac wing therebetween, two of which are outside. In
One is on the inside, has a plane at the center of the three wings, which mainly holds the load applied from the iliac wing, and the outer wings are designed to allow load distribution. ,
It is of a shape with a wide head so that the gluteus maximus grows and acts on it, and the above 3
There are three blades and a weight holding part, and a base part has a socket part for a hip joint. The surface of the socket part is inclined at about 45 degrees with respect to the vertical, and has a anteversion angle. An artificial pelvis at about 10 degrees and having a long projection and an ischial-shaped portion that connects with the pubic symphysis. 2. A high-hardness molded body whose surface is mostly covered with a tissue membrane in advance, and three wings which are inserted into the periosteum and hold the iliac wing between the upper and lower parts of the molded body. Two of which are on the outside and one on the inside, with a plane in the center of the three wings that primarily holds the load from the iliac wing, and The outer wing is shaped to have a wide head so that the gluteus muscles can grow and act thereon, so that the load can be distributed, and the above three wings can be placed on its base. A wing portion and a weight holding portion are provided, and a socket portion for a hip joint is provided at a base thereof, and a surface of the socket portion is inclined at about 45 degrees with respect to a vertical direction, and has a anteversion angle of about 45 degrees. It is at 10 degrees and is characterized by having a long projection and an ischial-shaped part that connects with the pubic symphysis. Artificial pelvis to. 3. The woven fabric, knitted fabric, felt, or net made of at least one fiber selected from polyamide fibers, polyester fibers, polyolefin fibers, polyfluorocarbon fibers, and carbon fibers. Or non-woven web or film, same or different hardening,
The artificial pelvis according to claim 2, wherein the pelvis is a woven fabric, a knitted fabric, a felt or a net made of a membrane body or collagen fiber obtained by treating a fascia or periosteum. 4. The tissue membrane is made of polystyrene, ABS resin, methacrylic resin, vinyl acetate fiber, cellulose resin, polycarbonate, polysulfone, silicone resin, chlorosulfonated polyethylene, phenol- Resin, urea resin, melamine resin, xylene resin, polyester resin, epoxy resin, polyurethane resin, polyimide, polyethylene, polypropylene, polyvinyl chloride, AS resin, polyamide, polyacetal, PET resin, PBT resin, polyphenylene resin Woven, knitted, made of at least one material selected from the group
3. The artificial pelvis according to claim 2, wherein the artificial pelvis is a felt, a mesh, a nonwoven web or a film. 5. The artificial pelvis according to claim 2, wherein the tissue membrane is used as an all-surface encapsulating junction membrane, and has a shape in which a part thereof is stripped off as required. 6. The high-hardness molding material is a polycrystalline alumina,
3. A material comprising at least one selected from hydroxyapatite, other ceramics, carbon, metal, alloy and hard organic synthetic resin as a main structural component. Artificial pelvis. 7. A high-hardness molded body having an acetabular part, a iliac load holding flat part, a iliac fixing wing part (projection part), a pubic connection part, and an ischial part, most of which are formed. Of the iliac bone has a wide head so that the gluteal muscles can grow and act on it so that the weight can be dispersed. The acetabular part has a socket for a hip joint, and the surface of the socket is inclined by about 4 with respect to the vertical.
At 5 degrees, at a anteversion angle of about 10 degrees, and extending from the acetabulum portion to the pubic symphysis tying portion, wherein the ischial-shaped portion extends downwardly from the acetabulum portion; An artificial pelvis, characterized in that at least one of the fixing wings extends outwardly and at least one of them extends inwardly to support the human iliac portion.