scholarly journals Effects of intertrochanteric varus osteotomy on Norberg angle and percent coverage of the femoral head in displastic dogs

2013 ◽  
Vol 14 (2) ◽  
pp. 185 ◽  
Author(s):  
Stefania Pinna ◽  
Enrico Pizzuti ◽  
Fabio Carli
Keyword(s):  
Femoral Head ◽  
Varus Osteotomy ◽  
Norberg Angle

Transtrochanteric Curved Varus Osteotomy for the Treatment of Osteonecrosis of the Femoral Head

Osteonecrosis ◽  
2014 ◽  
pp. 339-344
Author(s):  
Takuaki Yamamoto ◽  
Satoshi Ikemura ◽  
Yukihide Iwamoto
Keyword(s):  
Femoral Head ◽  
Varus Osteotomy

scholarly journals Effects of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum

2017 ◽  
Vol 62 (No. 7) ◽  
pp. 377-385 ◽  
Author(s):  
J. Martins ◽  
B. Colaco ◽  
S. Alves-Pimenta ◽  
A. Ferreira ◽  
M. Ginja
Keyword(s):  
Femoral Head ◽  
Hip Dysplasia ◽  
Scoring Systems ◽  
Normal Position ◽  
Pelvis Rotation ◽  
Mean Differences ◽  
The Right ◽  
Extended View ◽  
Norberg Angle

The aim of this study was to describe the influence of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum in the standard ventrodorsal hip extended view, i.e. Norberg angle, pelvic thickness at the level of the cranial effective acetabular rim, femoral head subluxation index, femoral head subluxation category and femoral head-acetabular distance. Twelve adult dogs of large and giant breeds were radiographed in standard hip extended view and with 2°, 4° and 6° of rotation on the right and left sides. Norberg angle, pelvic thickness, subluxation index, subluxation category and femoral head-acetabular distance were measured on radiographs and analysed comparing a normal position with positions of different degrees of rotation for the dependent and non-dependent side. All the studied parameters showed adequate repeatability. Norberg angle and femoral head-acetabular distance did not show significant mean differences in all degrees of rotated pelvis (P > 0.05). The pelvic thickness showed an increase with the degree of rotation on the dependent side (P < 0.05) and a slight decrease on the non-dependent side (P > 0.05). The subluxation index and subluxation category showed an increase with the degree of rotation on the dependent side and a decrease on the non-dependent side (P < 0.05). As the subluxation index and subluxation category are parameters used in the classification of the main international hip dysplasia scoring systems, pelvic rotation can impair the final hip score, especially in scoring systems that are based on the worst joint.

Curved Intertrochanteric Varus Osteotomy vs Total Hip Arthroplasty for Osteonecrosis of the Femoral Head in Patients Under 50 Years Old

2020 ◽  
Vol 35 (6) ◽  
pp. 1600-1605
Author(s):  
Yusuke Osawa ◽  
Taisuke Seki ◽  
Toshiaki Okura ◽  
Yasuhiko Takegami ◽  
Naoki Ishiguro ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Varus Osteotomy ◽  
Total Hip

What factors predict the failure of curved intertrochanteric varus osteotomy for the osteonecrosis of the femoral head?

2016 ◽  
Vol 136 (12) ◽  
pp. 1647-1655 ◽  
Author(s):  
Toshiaki Okura ◽  
Yukiharu Hasegawa ◽  
Daigo Morita ◽  
Yusuke Osawa ◽  
Naoki Ishiguro
Keyword(s):  
Femoral Head ◽  
Varus Osteotomy

The clinical and radiographic results of intertrochanteric curved varus osteotomy for idiopathic osteonecrosis of the femoral head

2014 ◽  
Vol 134 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Michio Hamanishi ◽  
Yuji Yasunaga ◽  
Takuma Yamasaki ◽  
Ryo Mori ◽  
Takeshi Shoji ◽  
...  
Keyword(s):  
Femoral Head ◽  
Varus Osteotomy

Traumatic Coxofemoral Luxation in Dysplastic Dogs Managed with a Triple Pelvic Osteotomy: Results in four Dogs

1997 ◽  
Vol 10 (03) ◽  
pp. 136-140 ◽  
Author(s):  
D. D. Lewis ◽  
S. C. Kerwin ◽  
S. T. Murphy
Keyword(s):  
Femoral Head ◽  
Hip Dysplasia ◽  
External Rotation ◽  
Pelvic Osteotomy ◽  
Degenerative Joint Disease ◽  
Joint Disease ◽  
Contralateral Limb ◽  
Norberg Angle

SummaryTriple pelvic osteotomy (TPO) was used in the treatment for traumatic coxofemoral luxations in four adult, large breed dogs with hip dysplasia. Initial closed reductions failed in three and one dog had an initial closed reduction and subsequent open reduction of the coxofemoral luxation that failed. Hip dysplasia was thought to be a prominent factor contributing to the reluxation. TPO successfully maintained reduction of the coxofemoral luxation in all of the dogs. An increase in dorsal acetabular coverage of the femoral head following TPO was demonstrated by an increased Norberg angle. The improved congruency was thought to maintain reduction of the femoral head in the acetabulum and decrease stresses on the joint capsule, allowing healing to occur. Long-term (median: 343, mean ± SD: 406 ± 226 days follow-up) function of the affected limb was comparable to the contralateral limb. Three of the four dogs did not have radiographic progression of coxofemoral degenerative joint disease of the affected joint and differences in the progression of degenerative joint disease were not evident between the affected and the contralateral coxofemoral joint. A decrease in abduction and external rotation and an increase in internal rotation following TPO was noted in the affected coxofemoral joint. Our results establish the utility of this procedure in dysplastic dogs with traumatic coxofemoral luxations.Triple pelvic osteotomy used in the treatment for traumatic coxofemoral luxation in four adult, large breed dogs with hip dysplasia successfully maintained reduction and resulted in satisfactory limb function in all patients.

scholarly journals Comparison of Surgical Parameters and Results between Curved Varus Osteotomy and Rotational Osteotomy for Osteonecrosis of the Femoral Head

2017 ◽  
Vol 9 (2) ◽  
pp. 160 ◽  
Author(s):  
Young-Kyun Lee ◽  
Chan Ho Park ◽  
Yong-Chan Ha ◽  
Do-Yeon Kim ◽  
Sung-Hwa Lyu ◽  
...  
Keyword(s):  
Femoral Head ◽  
Varus Osteotomy ◽  
Rotational Osteotomy

scholarly journals Femoral Varus Osteotomy for Hip Instability after Traumatic Fracture Dislocations of the Hip Associated with Femoral Head Fractures: A Report of Two Cases

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Shuichi Miyamoto ◽  
Junichi Nakamura ◽  
Satoshi Iida ◽  
Chiho Suzuki ◽  
Seiji Ohtori ◽  
...  
Keyword(s):  
Femoral Head ◽  
Closed Reduction ◽  
Weight Bearing ◽  
Gait Training ◽  
Fracture Dislocation ◽  
Varus Osteotomy ◽  
Type Iv ◽  
Traumatic Fracture ◽  
Coxa Valga ◽  
Dislocation Of The Hip

Fracture of the femoral head and the acetabulum with traumatic dislocation of the hip is a severe injury representing various types and unfavorable outcome. We showed a 45-year-old man with Pipkin type-IV fracture and coxa valga. An immediate closed reduction was achieved followed by open reduction and internal fixation via a posterior approach 6 days later. However, dislocation occurred three times without traumatic events after three weeks. CT demonstrated no displacement of posterior fragments or implant failure. Femoral intertrochanteric varus osteotomy was performed to gain concentric stability and successfully resolved recurrent dislocation. Another 45-year-old woman with Pipkin type-IV fracture and coxa valga also underwent closed reduction initially and then continued conservative treatment. After eight weeks, when she started gait training, progressive pain became symptomatic. Persistent hip pain at weight bearing was not improved in spite of arthroscopic synovectomy and osteochondroplasty. Two years after injury, femoral intertrochanteric varus osteotomy was indicated and her refractory pain was resolved gradually. We suggest that femoral varus osteotomy should be considered for superolateral subluxation associated fracture dislocation of the hip in Pipkin type-IV and coxa valga.

scholarly journals Femoral Osteotomies for Osteonecrosis of the Femoral Head

2021 ◽  
Vol 3 (SP1) ◽  
pp. e9-e18
Author(s):  
Goro Motomura ◽  
Yasuharu Nakashima
Keyword(s):  
Femoral Head ◽  
Current Knowledge ◽  
Young Patients ◽  
Repair Process ◽  
Review Article ◽  
Femoral Osteotomy ◽  
Necrotic Lesion ◽  
Artificial Joints ◽  
Varus Osteotomy ◽  
Rotational Osteotomy

Femoral osteotomy is performed for osteonecrosis of the femoral head to prevent the progression of collapse and promote the repair process by transposing the necrotic lesion to the nonweight-bearing portion. The purpose of this review article was to summarize the current knowledge on two types of femoral osteotomy: transtrochanteric anterior or posterior rotational osteotomy and transtrochanteric curved varus osteotomy, both of which are currently performed for osteonecrosis, mainly in Japan and Korea. Osteotomy can be expected to cure osteonecrosis, and no matter how much the durability of artificial joints improves, there will always be young patients for whom the procedure is indicated. We should continue to verify the results of this surgery and refine the techniques involved.

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