Hip Int 2013 ; 23 ( Suppl 9) : S1
DOI: 10.5301/HIP.2013.11694
Foreword The following papers were selected from the 2011 and 2013 AONA Symposia on Surgical Preservation of the Hip. Clinical observations of patients with malpositioning of the acetabular fragment following PAO, femoral neck nonunions and SCFE led to the description of femoral acetabular impingement (FAI) by Professor Reinhold Ganz and colleagues in Bern. Through improved understanding of the digastric osteotomy and the blood supply to the femoral head, a novel approach was developed that allowed for safe dislocation of the hip to effectively treat intraarticular pathologies without risk of avascular necrosis to the femoral head. This, along with advances in magnetic resonance imaging and hip arthroscopy, helped to define the patterns of injury resulting from femoral acetabular impingement and proving it as a mechanical aetiology of hip osteoarthritis. Dr Mast and others who studied in Bern were instrumental in the early dissemination of the theories and surgical techniques for hip preservation in North America. AO North America (AONA) recognised similarities to its educational goals of careful planning, surgical execution and internal fixation that could lead to joint preservation, and has been a sole sponsor since the inaugural symposia held in Mammouth CA in 2003. The science and techniques for hip preservation have evolved over the years, and this symposium continues to be a forum for thought leaders from Europe and NA to present their techniques and scientific findings. In this supplement, Stover et al present the results of the largest series of patients with Charcot-MarieTooth treated with PAO. Lee et al proves blood loss with PAO is related to duration of surgery and postoperative haemoglobins are on average 31% lower than preop haemoglobin. Tannast et al define the difficulties patients and physicians encounter with total acetabular retroversion following PAO and describe the outcomes of treatment for this complication. Regarding impingement, Bedi et al provide us with a better understanding of the zones of impingement that occur with typical physical examination manoeuvers. Ganz et al implicate the lesser trochanter as an additional source of impingement and propose treatment options. Costa Rocha et al present a series of patients with overcoverage in whom labral reconstruction was performed using hamstring allograft, and Impellizzeri et al define residual symptoms following treatment for hip impingement. Finally, Tannast provides an overview of treatment options for a difficult problem, Legg-Calvé-Perthes. From those who have been inspired to a vocation in hip preservation, we owe a debt of gratitude to Jeff Mast and Reinhold Ganz. For those introduced to the subject matter through these courses, we thank AONA for continued support of this important meeting.
Reinhold Ganz, Michael Leunig, Jeff Mast, Michael D. Stover Guest Editors
© 2013 Wichtig Editore - ISSN 1120-7000
S1
Copyright of Hip International is the property of Wichtig Editore and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.
DOI: 10.5301/HIP.2013.11694
Foreword The following papers were selected from the 2011 and 2013 AONA Symposia on Surgical Preservation of the Hip. Clinical observations of patients with malpositioning of the acetabular fragment following PAO, femoral neck nonunions and SCFE led to the description of femoral acetabular impingement (FAI) by Professor Reinhold Ganz and colleagues in Bern. Through improved understanding of the digastric osteotomy and the blood supply to the femoral head, a novel approach was developed that allowed for safe dislocation of the hip to effectively treat intraarticular pathologies without risk of avascular necrosis to the femoral head. This, along with advances in magnetic resonance imaging and hip arthroscopy, helped to define the patterns of injury resulting from femoral acetabular impingement and proving it as a mechanical aetiology of hip osteoarthritis. Dr Mast and others who studied in Bern were instrumental in the early dissemination of the theories and surgical techniques for hip preservation in North America. AO North America (AONA) recognised similarities to its educational goals of careful planning, surgical execution and internal fixation that could lead to joint preservation, and has been a sole sponsor since the inaugural symposia held in Mammouth CA in 2003. The science and techniques for hip preservation have evolved over the years, and this symposium continues to be a forum for thought leaders from Europe and NA to present their techniques and scientific findings. In this supplement, Stover et al present the results of the largest series of patients with Charcot-MarieTooth treated with PAO. Lee et al proves blood loss with PAO is related to duration of surgery and postoperative haemoglobins are on average 31% lower than preop haemoglobin. Tannast et al define the difficulties patients and physicians encounter with total acetabular retroversion following PAO and describe the outcomes of treatment for this complication. Regarding impingement, Bedi et al provide us with a better understanding of the zones of impingement that occur with typical physical examination manoeuvers. Ganz et al implicate the lesser trochanter as an additional source of impingement and propose treatment options. Costa Rocha et al present a series of patients with overcoverage in whom labral reconstruction was performed using hamstring allograft, and Impellizzeri et al define residual symptoms following treatment for hip impingement. Finally, Tannast provides an overview of treatment options for a difficult problem, Legg-Calvé-Perthes. From those who have been inspired to a vocation in hip preservation, we owe a debt of gratitude to Jeff Mast and Reinhold Ganz. For those introduced to the subject matter through these courses, we thank AONA for continued support of this important meeting.
Reinhold Ganz, Michael Leunig, Jeff Mast, Michael D. Stover Guest Editors
© 2013 Wichtig Editore - ISSN 1120-7000
S1
Copyright of Hip International is the property of Wichtig Editore and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.
