Rotational Acetabular Osteotomy for Osteonecrosis with Collapse of the Femoral Head in Young Patients

Nozawa, Masahiko; Enomoto, Fumiyo; Shitoto, Katsuo; Matsuda, Keiji; Maezawa, Katsuhiko; Kurosawa, Hisashi

doi:10.2106/jbjs.c.01461

Cited by 18 publications

(11 citation statements)

References 20 publications

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“…Recently, rotational acetabular osteotomy for ONFH was shown to provide symptomatic relief and to prevent substantial collapse of the femoral head at the time of early to intermediate follow-up [14]. Although improved acetabular coverage is a common result of both rotational acetabular osteotomy and acetabuloplasty, their utility in treating ONFH can differ.…”

Section: Discussionmentioning

confidence: 99%

“…Although improved acetabular coverage is a common result of both rotational acetabular osteotomy and acetabuloplasty, their utility in treating ONFH can differ. Rotational acetabular osteotomy is indicated for ONFH with some degree of an intact lateral cortex of the femoral head [14]. On the other hand, ARO combined with acetabuloplasty is indicated for ONFH cases with one third or more intact posterior area of the femoral head.…”

Section: Discussionmentioning

confidence: 99%

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Midterm results of transtrochanteric anterior rotational osteotomy combined with shelf acetabuloplasty for osteonecrosis with acetabular dysplasia: a preliminary report

Motomura

Yamamoto

Nakashima

et al. 2012

Journal of Orthopaedic Science

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Midterm results of transtrochanteric anterior rotational osteotomy combined with shelf acetabuloplasty for osteonecrosis with acetabular dysplasia: a preliminary report

Motomura

Yamamoto

Nakashima

et al. 2012

Journal of Orthopaedic Science

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“…An RAO for AD usually has a satisfactory outcome [25,26]. However, since some cases show poor outcomes, studies have sought to identify the causes of these poor outcomes.…”

Section: Discussionmentioning

confidence: 99%

“…In Caucasians, oestrogen receptor (ER) and vitamin D receptor (VDR) gene polymorphism may be associated with AD, although no statistical significance has been observed [19]. An rotational acetabular osteotomy (RAO) is frequently performed to treat patients with symptomatic AD who show less than 20°of centre-edge (CE) angle to forestall the expected progress of degenerative change of the hip joint [25][26][27]. Although most of the patients that undergo RAOs show satisfactory results, some have poor results, as described below [27].…”

Section: Introductionmentioning

confidence: 99%

Association of oestrogen receptor gene polymorphism with the long-term results of rotational acetabular osteotomy

Yamanaka

Ishijima

Tokita

et al. 2009

International Orthopaedics (SICOT)

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Acetabular dysplasia (AD) contributes to the development of osteoarthritis of the hip. A rotational acetabular osteotomy (RAO) is one of the methods of pelvic osteotomy to prevent or treat secondary osteoarthritis of the hip. Although most of the patients that undergo RAO show satisfactory results, some have poor results. This study investigated whether gene polymorphisms of both the vitamin D receptor (VDR) and oestrogen receptor (ER) are involved in both AD and the postoperative results following RAOs. Sixty-four Japanese patients with AD who were treated by an RAO were enrolled in this study (59 women and 5 men, aged 13-59, with an average age of 40.3). Gene polymorphisms of the VDR [ApaI and TaqI restriction fragment length polymorphisms (RFLPs)] and ER (PvuII and XbaI RFLPs) were determined in these patients. The relationship between both the AD and radiographic postoperative changes of the hip joint after an RAO with these gene polymorphisms were examined. The frequencies of ER gene polymorphism coded as pp (RFLP/PvuII) in patients with AD were statistically significantly different (p = .011) from those coded as both PP and Pp. The joint space width narrowed even after RAO in 90% of the patients with the pp gene polymorphism, while it narrowed in only 35% of the patients with either PP or Pp seven years or longer after an RAO. The PvuII polymorphism in the ER gene was associated with the postoperative result of an RAO, while no association was observed between the AD with VDR and ER gene polymorphisms.

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“…3). He underwent RAO of the right hip in June 2007 using the technique of Ninomiya and Tagawa [3]. There were no complications during surgery or the postoperative period.…”

Section: Case Reportmentioning

confidence: 99%

Rapid resolution of femoral head osteonecrosis after rotational acetabular osteotomy

Nozawa

Matsuda

Maezawa

et al. 2008

J Orthopaed Traumatol

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The natural history of osteonecrosis of the femoral head is generally thought to be one of progressive deterioration if no intervention is undertaken. However, it is unknown whether surgical intervention is beneficial for patients with a small region of osteonecrosis. We observed rapid improvement of MRI findings after rotational acetabular osteotomy (RAO) was performed in a young patient with osteonecrosis of the femoral head. The band-like low signal area on T2-weighted images almost resolved by six months after surgery. He returned to work as an electrician by six months after surgery. Early surgical intervention such as RAO that alters the mechanical force acting on the necrotic region of the femoral head may accelerate the recovery of osteonecrosis and the improvement of symptoms.

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Rotational Acetabular Osteotomy for Osteonecrosis with Collapse of the Femoral Head in Young Patients

Abstract: In the present study of young patients with extensive osteonecrosis and collapse of the femoral head, rotational acetabular osteotomy was associated with symptomatic relief and absence of substantial collapse of the femoral head at the time of early to intermediate-term follow-up.

Cited by 18 publications

References 20 publications

Midterm results of transtrochanteric anterior rotational osteotomy combined with shelf acetabuloplasty for osteonecrosis with acetabular dysplasia: a preliminary report

Midterm results of transtrochanteric anterior rotational osteotomy combined with shelf acetabuloplasty for osteonecrosis with acetabular dysplasia: a preliminary report

Association of oestrogen receptor gene polymorphism with the long-term results of rotational acetabular osteotomy

Rapid resolution of femoral head osteonecrosis after rotational acetabular osteotomy

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