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News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


News Article | May 17, 2017
Site: globenewswire.com

VAIL, Colo. –  (May 17, 2017) - Joel Matta, M.D., one of the nation’s premier orthopaedic surgeons in the field of hip and pelvic reconstruction, is joining the staff of physicians at The Steadman Clinic late June. Dr. Marc J. Philippon, Managing Partner of The Steadman Clinic and Co-chair of the Steadman Philippon Research Institute (SPRI), and Dan Drawbaugh, CEO of The Steadman Clinic and SPRI, made the announcement on Wednesday, May 17, 2017. Dr. Matta is the founder and director of the Hip and Pelvis Institute at St. John’s Health Center in Santa Monica, Calif.  A veteran of 35 years in the practice of orthopaedic surgery, Dr. Matta also is the founding President of the Anterior Hip Foundation.  Dr. Matta has been recognized for his contributions to hip surgery by election for membership to the Hip Society as well as the International Hip Society. During his career, he has also been involved in research related to hip surgery and replacement. He has published more than 30 articles and studies on the advancement of techniques and methods used to simplify and improve hip replacement, pelvic and acetabular fracture treatment and periacetabular osteotomy.  His data base documenting treatment and result of thousands of hip and pelvis patients since 1980, will complement the SPRI research activities.  Dr Matta holds several US and international patents regarding orthopaedic innovations. Besides treatment of patients with hip problems, Dr Matta’s current focus is education and innovation regarding anterior approach hip replacement.  20 years ago he began as a pioneer of this technique, now enhanced by a special orthopaedic operating table he designed, and has remained influential regarding the growth and adoption of Anterior Approach.  There is now a growing body of research data showing results of Anterior Approach as described by Dr Matta to be superior to traditional hip replacement techniques. “We are honored to have Dr. Matta join our team here at SPRI and The Steadman Clinic,” said Dr. Philippon. “He is truly one of the elite surgeons in the country when it comes to hip and pelvis treatment. Dr. Matta also gives us another experienced doctor that is always seeking and researching new innovative ways to improve medicine and help joint replacement patients heal faster and stronger and resume their normal lives in timely fashion.” Dr. Matta also instituted the “Matta Hip and Pelvis Reconstruction Fellowship” program in Los Angeles.  Each year, he takes an orthopaedic surgeon under his guidance to train in complex hip and pelvis reconstruction. The fellow is an orthopaedic surgeon who has completed residency training and is doing additional sub-specialty training.  This surgeon works under Dr. Matta’s supervision and assists with examinations, in-hospital care, surgery, and research. “One of the many attributes about Dr. Matta that impressed us here at SPRI was his work and dedication shown in his Fellows program at the Hip and Pelvis Institute,” said Drawbaugh.  “We have a very successful and highly-regarded Fellows program here at SPRI and we look forward to having Dr. Matta work on a one-to-one basis with our Fellows and provide them the opportunity to learn about hip and pelvis specialties from one of the world’s best physicians in that field.” Dr. Matta graduated from Oregon Health and Science University School of Medicine in 1973. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/50cfae65-bd97-4481-b6fb-4fc824849a4e A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/4c613b73-1f68-40e0-bf03-b0d8f576a7df


Lertwanich P.,Steadman Philippon Research Institute
The American journal of sports medicine | Year: 2011

Suture anchors are commonly used to reattach a torn labrum to the acetabular rim. The acetabular rim anatomy is not uniform, and the safety margin for inserting suture anchors is unknown. The acetabular rim angle is an anatomic measurement that is indicative of the safety margin for inserting suture anchors. To investigate the acetabular rim angle as a function of clock position, to evaluate the effect of drill depth on the acetabular rim angle, and to evaluate the effect of rim trimming on the acetabular rim angle. Descriptive laboratory study. Three-dimensional acetabular models were reconstructed from computed tomography scans of 20 nonpaired cadaveric hip specimens, and the acetabular rim angle, which quantifies the angle between the subchondral margin and the outer cortex of the acetabulum, was measured from the 8- to 4-o'clock positions. At each position, the acetabular rim angle was measured for 5 drill depths (10, 12.5, 15, 20, and 25 mm) to simulate different lengths of suture anchors or drill bit depths on the acetabular rim angle. To simulate rim trimming, the acetabular rim angle was measured at the points that would become the suture anchor insertion points after 2.5- and 5-mm rim trimming. Clock position, drill depth, and rim trimming all had significant effects on the acetabular rim angle (P < .0001). The acetabular rim angle was largest at the 2-o'clock and smallest at the 3-o'clock position. Greater drill depths provided smaller acetabular rim angles, whereas rim trimming provided larger acetabular rim angles. The acetabular rim angle varied significantly as a function of the location on the acetabular rim. A shorter drill depth and a greater amount of rim trimming provided a larger acetabular rim angle. Surgeons should be aware of the acetabular rim variations, especially in the anterosuperior quadrant, as well as the effects of drill depth and rim trimming, when selecting the optimal insertion angle for suture anchor placement to avoid articular cartilage penetration. The acetabular safety angle was smallest at the 3-o'clock position. Therefore, extra care must be taken when drilling or inserting anchors around the 3-o'clock position.


Stull J.D.,Steadman Philippon Research Institute
The American journal of sports medicine | Year: 2011

Femoroacetabular impingement (FAI) is becoming a prevalent overuse injury diagnosis among hockey players. In the adult ice hockey stride, the "at-risk" hip position, defined by internal rotation during flexion and external rotation during abduction, reportedly increases hip vulnerability to labral injury as a result of FAI. Peewee youth ice hockey players display the kinematics for both described at-risk hip positions (internal rotation during flexion and external rotation during abduction) in the ice hockey sprint start. Descriptive laboratory study. Twelve healthy male Peewee ice hockey players (mean age, 10.8 ± 0.6 years) participated in this study. Thirty-five anatomic landmarks were used to analyze the 3-dimensional kinematic and kinetic variables of the hip associated with the ice hockey sprint start. Ten high-speed (120-Hz) infrared cameras recorded the trials, which were subsequently analyzed with Motion Monitor software. The sprint start was recorded over 4 defined periods of motion: start, push, swing, and even. In the "push" period, 11.5° of external rotation was observed concurrently with 13.2° of abduction in the push leg, and 6.8° of internal rotation occurred with 33.8° of flexion in the lead leg. During the recovery phase of the "swing" period, maximum internal rotation was 5.6° with concurrent hip flexion of 44.2° in the push leg, while lead leg internal rotation reached a maximum of 10.8° with hip flexion of 35.1° during the "even" period. During the sprint start, youth ice hockey players externally rotate in abduction during the push-off phase and internally rotate through increasing hip flexion during the recovery phase, displaying the at-risk hip positions of the ice hockey skating stride. During the sprint start, youth ice hockey players position their hips in a manner that can cause impingement of the femoral neck against the acetabulum and potentially lead to labral tears and/or articular cartilage damage. This knowledge could be applied to assist in the prevention of overuse injuries of the hip as youth hockey players mature and increase in skill level.


Myers C.A.,Steadman Philippon Research Institute
The American journal of sports medicine | Year: 2011

Recent biomechanical reports have described the function of the acetabular labrum and iliofemoral ligament in providing hip stability, but the relative stability provided by each structure has not been well described. Both the iliofemoral ligament and acetabular labrum are important for hip stability by limiting external rotation and anterior translation, with increased stability provided by the iliofemoral ligament compared with the acetabular labrum. Controlled laboratory study. Fifteen fresh-frozen male cadaveric hips were utilized for this study. Each specimen was selectively skeletonized down to the hip capsule. Four tantalum beads were embedded into each femur and pelvis to accurately measure hip translations and rotations using biplane fluoroscopy while either a standardized 5 N·m external or internal rotation torque was applied. The hips were tested in 4 hip flexion angles (10° of extension, neutral, and 10° and 40° of flexion) in the intact state and then by sectioning and later repairing the acetabular labrum and iliofemoral ligament in a randomized order. External rotation significantly increased from the intact condition (41.5° ± 7.4°) to the sectioned iliofemoral ligament condition (54.4° ± 6.6°) and both-sectioned condition (61.5° ± 5.7°; P < .01), but there was no significant increase in external rotation when the labrum alone was sectioned (45.6° ± 5.9°). The intact and fully repaired conditions were not significantly different. External rotation and internal rotation significantly decreased when the hip flexion angle decreased from 40° of flexion to 10° of extension (P < .01) regardless of sectioned condition. Anterior translation varied significantly across sectioned conditions but not across flexion angles (P < .001). The ligament-sectioned (1.4 ± 0.5 mm), both-sectioned (2.2 ± 0.2 mm), and labrum-repaired (1.1 ± 0.2 mm) conditions all resulted in significantly greater anterior translation than the intact condition (-0.4 ± 0.1 mm) (P < .001). The iliofemoral ligament had a significant role in limiting external rotation and anterior translation of the femur, while the acetabular labrum provided a secondary stabilizing role for these motions. These results suggest that, if injured, both the acetabular labrum and iliofemoral ligament should be surgically repaired to restore native hip rotation and translation. In addition, a careful repair of an arthroscopic capsulotomy should be performed to avoid increased external hip rotation and anterior translation after arthroscopy.


Patent
Steadman Philippon Research Institute | Date: 2012-05-22

This disclosure describes systems, methods, and apparatus for generating a 3D rendering of and quantitative analysis of biochemical MRI voxels corresponding to a tissue or organ of interest. Voxels corresponding to the tissue or organ of interest can be identified from anatomical MRI voxels and aligned with biochemical MRI voxels. The biochemical MRI voxels aligned with the tissue or organ of interest can be isolated and then provided to one or more modules for 3D rendering and quantitative analysis.

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