WO2024118018A1 - A hip retractor with three different inclinations - Google Patents
A hip retractor with three different inclinations Download PDFInfo
- Publication number
- WO2024118018A1 WO2024118018A1 PCT/TR2023/051156 TR2023051156W WO2024118018A1 WO 2024118018 A1 WO2024118018 A1 WO 2024118018A1 TR 2023051156 W TR2023051156 W TR 2023051156W WO 2024118018 A1 WO2024118018 A1 WO 2024118018A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- retractor
- hip
- acetabulum
- section
- hip retractor
- Prior art date
Links
- 210000001624 hip Anatomy 0.000 claims abstract description 43
- 210000000588 acetabulum Anatomy 0.000 claims abstract description 18
- 210000001519 tissue Anatomy 0.000 claims abstract description 18
- 210000000689 upper leg Anatomy 0.000 claims abstract description 16
- 210000004872 soft tissue Anatomy 0.000 claims abstract description 12
- 239000002775 capsule Substances 0.000 claims abstract description 6
- 210000003205 muscle Anatomy 0.000 claims abstract description 4
- 210000002435 tendon Anatomy 0.000 claims abstract description 3
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000011882 arthroplasty Methods 0.000 description 14
- 210000004394 hip joint Anatomy 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 208000028389 Nerve injury Diseases 0.000 description 3
- 238000002224 dissection Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008764 nerve damage Effects 0.000 description 3
- 230000008733 trauma Effects 0.000 description 3
- 238000012800 visualization Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011477 surgical intervention Methods 0.000 description 2
- 206010018852 Haematoma Diseases 0.000 description 1
- 208000029549 Muscle injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 210000003099 femoral nerve Anatomy 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 231100000878 neurological injury Toxicity 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0275—Joint distractors for the hip
Definitions
- the invention relates to a hip retractor with three different inclinations developed for use in the retraction (deactivating a limb or tissue during the surgical procedure) and visualization (making visible) of the femoral head and acetabulum in operations involving the hip joint, especially hip arthroplasty.
- the invention relates to the hip retractor, which is encountered in hip arthroplasty operations and is critical for the excision and dissection of the necessary tissues, designed for the stages of retraction, detection and imaging of the surrounding tissue, reduces the intervention of the surgeon in the surgical method with their trial, error and habit, and optimizes the use with three different inclination angles given for the surgical area in question.
- Total hip arthroplasty also known as total hip prosthesis, is an operation to replace the damaged joint applied to patients whose hip joint is severely calcified (osteoarthritis) or damaged.
- the hip joint is one of the largest weight-bearing joints of the body, located between the thigh bone (femur) and the pelvis. This joint is a ball and socket type joint formed by the femoral head (ball) and pelvic acetabulum (socket).
- the hip joint is a joint with mobility in 3 planes. All of the joints in the body give the person different mobility. Depending on various diseases and traumas, the joints may not be able to perform this function from time to time.
- Arthroplasty is the reconstruction of the joint to reduce the feeling of pain and pain existing in the joint and to increase and stabilize mobility.
- Arthroplasty which can be defined as joint prosthesis surgery, is described as the reconstruction or reshaping of the joint that has lost its normal functions with surgical intervention. In other words, thanks to arthroplasty, the relevant joint can restore its lost functions.
- the joint which has mobility difficulties or disorders, is restored by surgical methods and, if necessary, by using a prosthesis.
- Arthroplasty is generally used in large-surface joints such as knee and hip joints that carry body weight intensively. Arthroplasty aims to give the person the ability to move again and eliminate the complaint of pain.
- a retractor is used to reach the target organ or tissue during arthroplasty operations.
- damage develops as a result of compression, traction and ischemia.
- Nerve damage as a result of compression usually develops due to retractor or hematoma compression. Again, the most important factor leading to femoral nerve damage is thought to be retractor compression. It is very important to place the retractor correctly to avoid muscle and nerve damage in hip arthroplasty.
- the invention relates to an innovation in a retractor that increases the vision capacity required by the operator for surgical intervention without creating trauma in the operation area and allows recording the operation images.
- the subject of the invention maximally increases the visibility of the area where the surgeon will intervene during the operation through the light source with the acrobatic arm fixed to the retractors and allows the operation to be monitored live with the help of the camera with the acrobatic arm, providing a more efficient and risk- free work for surgeons and more professional information transfer to other operators.
- the invention relates to a three-joint retractor, which is mainly used to reach the heart in cardiac surgery in different parts of the body, pulls the tissues to the side for a better view of the operation area, can perform the operation at an angle by bending due to having three joints, and offers convenience during the operation.
- the invention relates to a three-joint retractor formed on a fixed retractor, which can be angled by bending and includes three retractor joints that allow retraction to be performed in every region of the body.
- the present invention relates to the hip retractor, which meets the abovementioned needs, eliminates all disadvantages and provides some additional advantages, which are encountered in hip arthroplasty operations and is critical for the excision and dissection of the necessary tissues and is designed for the stages of retraction, detection and imaging of the surrounding tissue, reduces the trial, error and habit and intervention of the surgeon in the surgical method and optimizes the use with three different inclination angles given for the surgical area in question.
- the objective of the invention is to reduce tissue damage due to retraction in the posterolateral and lateral approaches to the hip thanks to the fact that the hip retractor has three different inclination angles, to reduce the effort spent by the surgeon for retraction and ultimately to make imaging less laborious, more stable and more optimal.
- the object of the invention is to ensure that the surrounding tissue is excluded during retraction thanks to three different inclination angles.
- Another object of the invention is to ensure that the grasped part is removed from the surgical area and the surgeon's field of view is maximized thanks to the increase in the total inclination angle.
- Another object of the invention is to ensure that the tissue excluded is crushed and damaged to a minimum level thanks to different inclination angles.
- Another object of the invention is to increase the stabilization of the hip retractor by tapering towards the tip, to reduce the effort required to keep it stable, to keep it more reliably in the place where it is worn, and to reduce accidents that may occur due to sudden release.
- Another object of the invention is to reduce the cost of the retractor by making it made of stainless steel material.
- Another object of the invention is to ensure that the planned surgical orientation is obtained more easily thanks to the fact that the retractor allows the surgical area to be seen under optimum conditions.
- Another object of the invention is to ensure that the surgeon uses less effort than the retractors available in the known state of the art, thanks to the ergonomic structure of the hip retractor.
- Another object of the invention is to ensure that the retractor is used for a long time with simple sterilization thanks to its structure and the material it is made of.
- Figure 1 shows a schematic overview of the hip retractor of the invention
- Figure 2 shows a side schematic overview of the hip retractor of the invention.
- hip retractor (10) with three different inclinations which is developed for use in the retraction and visualization of the femoral head and acetabulum in operations involving the hip joint, especially hip arthroplasty, which is the subject of the invention, is explained only as an example for a better understanding of the subject and in a way that does not have any limiting effect.
- the hip retractor (10) shown in Figure 1 is placed on the edge of the acetabulum during the observation of the acetabulum and is used to see the acetabular opening by pushing the tissues in the region to the edge and to ensure the localization of the acetabular components. While one end of the hip retractor (10) is attached to the tissue, the other end is developed for gripping and pulling.
- the hip retractor (10) is a surgical tool made of stainless steel in one piece with original inclinations.
- the fact that the hip retractor (10) has three different inclinations provides a superior viewing angle and tissue retraction than other existing retractors used for the same region in accordance with the purpose of development.
- the use of said hip retractor (10) is easier due to the long force arm and is more stable than the existing retractors and allows the surgeon to perform the surgery with less effort.
- the hip retractor (10) shown in Figure 2 comprises three different angles.
- the angle of the acetabulum that is, the thigh section (11) formed in the arc suitable for the thigh, at the end of the hip retractor (10) between the capsule and the acetabulum is adjusted to fit between the capsule and the acetabulum.
- said thigh section (11) tapered towards the end.
- the femoral section (12) connected to the thigh section (11) is preferably joined to the soft tissue section (13) at an angle of 70-80 degrees.
- the hip retractor (10) provides a superior angle of view and tissue retraction than the existing retractors used for the same area and is easier to use, more stable and allows the surgeon to perform the surgery with less effort due to the long force arm.
- the hip retractor (10) can be produced simply and inexpensively and added to the existing hip arthroplasty sets used all over the world.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention is a hip retractor (10) placed on the edge of the acetabulum to see the acetabular opening and localize the acetabular components by pushing the tissues in the region to the edge during the observation of the acetabulum, characterized in that it comprises a thigh section (11) positioned at the end of the hip retractor (10) between the capsule and the acetabulum in the arc suitable for the acetabulum (thigh) and at an angle between the capsule and the acetabulum; a soft tissue section (13) to exclude soft tissues such as muscle, fat, tendon and to visualize the surgical area and prevent the hip retractor (10) from closing the field of vision; a femoral section (12) connected to the thigh section (11) at an angle with the soft tissue section (13) to exclude the femur.
Description
A HIP RETRACTOR WITH THREE DIFFERENT INCLINATIONS
Technical Field
The invention relates to a hip retractor with three different inclinations developed for use in the retraction (deactivating a limb or tissue during the surgical procedure) and visualization (making visible) of the femoral head and acetabulum in operations involving the hip joint, especially hip arthroplasty.
In particular, the invention relates to the hip retractor, which is encountered in hip arthroplasty operations and is critical for the excision and dissection of the necessary tissues, designed for the stages of retraction, detection and imaging of the surrounding tissue, reduces the intervention of the surgeon in the surgical method with their trial, error and habit, and optimizes the use with three different inclination angles given for the surgical area in question.
State of the Art
Total hip arthroplasty, also known as total hip prosthesis, is an operation to replace the damaged joint applied to patients whose hip joint is severely calcified (osteoarthritis) or damaged. The hip joint is one of the largest weight-bearing joints of the body, located between the thigh bone (femur) and the pelvis. This joint is a ball and socket type joint formed by the femoral head (ball) and pelvic acetabulum (socket). The hip joint is a joint with mobility in 3 planes. All of the joints in the body give the person different mobility. Depending on various diseases and traumas, the joints may not be able to perform this function from time to time. Arthroplasty is the reconstruction of the joint to reduce the feeling of pain and pain existing in the joint and to increase and stabilize mobility. Arthroplasty, which can be defined as joint prosthesis surgery, is described as the reconstruction or reshaping of the joint that has lost its normal functions with surgical intervention. In other words, thanks to arthroplasty, the relevant joint can restore its lost functions. The joint, which has mobility difficulties or disorders, is restored by surgical methods and, if necessary, by using a prosthesis. Arthroplasty is generally used in large-surface joints such as knee and hip
joints that carry body weight intensively. Arthroplasty aims to give the person the ability to move again and eliminate the complaint of pain.
A retractor is used to reach the target organ or tissue during arthroplasty operations. According to their studies on the etiology of neurological injuries in total hip arthroplasty, damage develops as a result of compression, traction and ischemia. Nerve damage as a result of compression usually develops due to retractor or hematoma compression. Again, the most important factor leading to femoral nerve damage is thought to be retractor compression. It is very important to place the retractor correctly to avoid muscle and nerve damage in hip arthroplasty. With the retractors with different angles currently available, it has been tried to reduce the retraction and vision quality to optimum conditions by further tissue dissection, loosening or excision when necessary, depending on the brute force of the surgeon using it and sometimes groping without full vision, and in some cases by causing damage to the surrounding tissue. Current hip retractor models often experience inclination and thus retraction problems, and there are design problems that cause interruptions in the function of the instrument as a result of the use of hand gauges due to extra effort and vision limitation for the surgeon using it.
Many studies have been carried out today with the object of eliminating the disadvantages of existing retractors and reducing trauma to the tissues by improving the surgeon's viewpoint during the operation. One of these studies is the invention that is the subject of the patent application numbered TR 2020/10268 and titled "Innovation in a Retractor". The invention relates to an innovation in a retractor that increases the vision capacity required by the operator for surgical intervention without creating trauma in the operation area and allows recording the operation images. The subject of the invention maximally increases the visibility of the area where the surgeon will intervene during the operation through the light source with the acrobatic arm fixed to the retractors and allows the operation to be monitored live with the help of the camera with the acrobatic arm, providing a more efficient and risk- free work for surgeons and more professional information transfer to other operators.
Another study is the invention that is the subject of the utility model application numbered TR 2015/03940 and titled "Three- Jointed Retractor". The invention relates to a three-joint retractor, which is mainly used to reach the heart in cardiac surgery in different parts of the body, pulls the tissues to the side for a better view of the operation area, can perform the
operation at an angle by bending due to having three joints, and offers convenience during the operation. In particular, the invention relates to a three-joint retractor formed on a fixed retractor, which can be angled by bending and includes three retractor joints that allow retraction to be performed in every region of the body.
As a result, the existence of the need for a hip retractor with three different inclinations, which eliminates the disadvantages of the existing art, and the inadequacy of the existing solutions made it necessary to make a development in the relevant technical field.
Brief Description of the Invention
The present invention relates to the hip retractor, which meets the abovementioned needs, eliminates all disadvantages and provides some additional advantages, which are encountered in hip arthroplasty operations and is critical for the excision and dissection of the necessary tissues and is designed for the stages of retraction, detection and imaging of the surrounding tissue, reduces the trial, error and habit and intervention of the surgeon in the surgical method and optimizes the use with three different inclination angles given for the surgical area in question.
Based on the state of the art, the objective of the invention is to reduce tissue damage due to retraction in the posterolateral and lateral approaches to the hip thanks to the fact that the hip retractor has three different inclination angles, to reduce the effort spent by the surgeon for retraction and ultimately to make imaging less laborious, more stable and more optimal.
The object of the invention is to ensure that the surrounding tissue is excluded during retraction thanks to three different inclination angles.
Another object of the invention is to ensure that the grasped part is removed from the surgical area and the surgeon's field of view is maximized thanks to the increase in the total inclination angle.
Another object of the invention is to ensure that the tissue excluded is crushed and damaged to a minimum level thanks to different inclination angles.
Another object of the invention is to increase the stabilization of the hip retractor by tapering towards the tip, to reduce the effort required to keep it stable, to keep it more reliably in the place where it is worn, and to reduce accidents that may occur due to sudden release.
Another object of the invention is to reduce the cost of the retractor by making it made of stainless steel material.
Another object of the invention is to ensure that the planned surgical orientation is obtained more easily thanks to the fact that the retractor allows the surgical area to be seen under optimum conditions.
Another object of the invention is to ensure that the surgeon uses less effort than the retractors available in the known state of the art, thanks to the ergonomic structure of the hip retractor.
Another object of the invention is to ensure that the retractor is used for a long time with simple sterilization thanks to its structure and the material it is made of.
The structural and characteristic features and all the advantages of the invention will be understood more clearly by means of the figures and the detailed description with reference to these figures given below and therefore, the evaluation should be made by taking these figures and the detailed description into consideration.
Brief Description of the Figures
The present invention should be evaluated together with the figures explained below so that it will be constructed and its advantages will be understood together with the additional elements in the best way.
Figure 1 shows a schematic overview of the hip retractor of the invention, Figure 2 shows a side schematic overview of the hip retractor of the invention.
List of the Reference Numbers
10. Hip retractor
11. Thigh section
12. Femoral section
13. Soft tissue section
Detailed Description of the Invention
In this detailed description, the hip retractor (10) with three different inclinations, which is developed for use in the retraction and visualization of the femoral head and acetabulum in operations involving the hip joint, especially hip arthroplasty, which is the subject of the invention, is explained only as an example for a better understanding of the subject and in a way that does not have any limiting effect.
The hip retractor (10) shown in Figure 1 is placed on the edge of the acetabulum during the observation of the acetabulum and is used to see the acetabular opening by pushing the tissues in the region to the edge and to ensure the localization of the acetabular components. While one end of the hip retractor (10) is attached to the tissue, the other end is developed for gripping and pulling. The hip retractor (10) is a surgical tool made of stainless steel in one piece with original inclinations. The fact that the hip retractor (10) has three different inclinations provides a superior viewing angle and tissue retraction than other existing retractors used for the same region in accordance with the purpose of development. The use of said hip retractor (10) is easier due to the long force arm and is more stable than the existing retractors and allows the surgeon to perform the surgery with less effort.
The hip retractor (10) shown in Figure 2 comprises three different angles. The angle of the acetabulum, that is, the thigh section (11) formed in the arc suitable for the thigh, at the end of the hip retractor (10) between the capsule and the acetabulum is adjusted to fit between the capsule and the acetabulum. In order to increase stabilization, to reduce the effort spent to keep it stable, to keep it more reliably in the place of insertion and to reduce the accidents that may occur due to sudden release, said thigh section (11) tapered towards the end. In order to exclude the femur, the femoral section (12) connected to the thigh section (11) is preferably joined to the soft tissue section (13) at an angle of 70-80 degrees. The soft tissue section (13), which prevents the visualization of the surgical area by eliminating soft tissues such as muscle, fat and tendon and closes the visual field of the hip retractor (10), preferably has a 50- degree angle.
The hip retractor (10) provides a superior angle of view and tissue retraction than the existing retractors used for the same area and is easier to use, more stable and allows the surgeon to perform the surgery with less effort due to the long force arm. The hip retractor (10) can be produced simply and inexpensively and added to the existing hip arthroplasty sets used all over the world.
Claims
CLAIMS A hip retractor (10) placed at the edge of the acetabulum to see the acetabular opening and to localize the acetabular components by pushing the tissues in the region to the edge during the observation of the acetabulum, characterized in that; the thigh section (11) positioned at the end of the hip retractor (10) between the capsule and the acetabulum in the arc suitable for the acetabulum (thigh) and at an angle to be inserted between the capsule and the acetabulum; soft tissue section (13) for imaging the surgical area by eliminating soft tissues such as muscle, fat, and tendon and preventing the hip retractor (10) from closing the field of view; a femoral section (12) connected to the thigh section (11) for excluding the femur, which joins the soft tissue section (13) at an angle. A hip retractor (10) according to claim 1, characterized in that it is made of stainless steel in one piece. A hip retractor (10) according to claim 1, characterized in that it comprises a thigh section (11) tapered towards the end to increase stabilization, reduce the effort spent to keep it stable, keep it more reliably in the place of insertion, and reduce accidents that may occur due to sudden release. A hip retractor (10) according to claim 1, characterized in that, it comprises the femoral section (12), which connects with the soft tissue section (13), preferably at an angle of 70- 80 degrees. A hip retractor (10) according to claim 1, characterized in that it comprises a soft tissue section (13), preferably at an angle of 50 degrees.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2022/018291 TR2022018291A2 (en) | 2022-11-30 | HIP RECATOR WITH THREE DIFFERENT INCLINES | |
| TR2022018291 | 2022-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024118018A1 true WO2024118018A1 (en) | 2024-06-06 |
Family
ID=91324619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2023/051156 WO2024118018A1 (en) | 2022-11-30 | 2023-10-18 | A hip retractor with three different inclinations |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2024118018A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205215290U (en) * | 2015-12-16 | 2016-05-11 | 嘉思特华剑医疗器材(天津)有限公司 | Hip joint is drag hook suit for minimal access surgery |
| CN215384263U (en) * | 2021-04-06 | 2022-01-04 | 山东威高海星医疗器械有限公司 | Minimally invasive hip joint retractor |
| CN215651302U (en) * | 2021-02-23 | 2022-01-28 | 北京大学第三医院（北京大学第三临床医学院） | Road tool is put into before bridge connection formula hip joint is direct |
| CN114366200A (en) * | 2022-01-28 | 2022-04-19 | 中国人民解放军陆军军医大学第二附属医院 | Femoral neck osteotomy baffle in hip arthroplasty |
-
2023
- 2023-10-18 WO PCT/TR2023/051156 patent/WO2024118018A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205215290U (en) * | 2015-12-16 | 2016-05-11 | 嘉思特华剑医疗器材(天津)有限公司 | Hip joint is drag hook suit for minimal access surgery |
| CN215651302U (en) * | 2021-02-23 | 2022-01-28 | 北京大学第三医院（北京大学第三临床医学院） | Road tool is put into before bridge connection formula hip joint is direct |
| CN215384263U (en) * | 2021-04-06 | 2022-01-04 | 山东威高海星医疗器械有限公司 | Minimally invasive hip joint retractor |
| CN114366200A (en) * | 2022-01-28 | 2022-04-19 | 中国人民解放军陆军军医大学第二附属医院 | Femoral neck osteotomy baffle in hip arthroplasty |
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