Legg–Calve–Perthes disease

2011 ◽  
Author(s):  
Colin Bruce
Keyword(s):  
Femoral Head ◽  
Natural History ◽  
Avascular Necrosis ◽  
Blood Supply ◽  
Poor Prognosis ◽  
Management Strategies ◽  
Current Treatment ◽  
Perthes Disease ◽  
Treatment Methods ◽  
History Of

♦ Avascular necrosis of the femoral head initiated by unknown factors is followed by gradual restoration of blood supply and regeneration♦ Current treatment methods aim to prevent development of an aspherical and incongruent femoral head and acetabulum♦ Treatment should be offered to the child with a poor prognosis so that the natural history of the condition can be improved: identification of such cases is difficult♦ Early and late management strategies differ significantly.

Natural history of nontraumatic avascular necrosis of the femoral head

1991 ◽  
Vol 73-B (1) ◽  
pp. 68-72 ◽  
Author(s):  
K Ohzono ◽  
M Saito ◽  
K Takaoka ◽  
K Ono ◽  
S Saito ◽  
...  
Keyword(s):  
Femoral Head ◽  
Natural History ◽  
Avascular Necrosis ◽  
History Of

Natural history of avascular necrosis of the femoral head in systemic lupus erythematosus

1997 ◽  
Vol 2 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Masaaki Usui ◽  
Hajime Inoue ◽  
Shigehumi Yukihiro ◽  
Nobuhiro Abe
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Femoral Head ◽  
Natural History ◽  
Avascular Necrosis ◽  
Lupus Erythematosus ◽  
Systemic Lupus ◽  
History Of

The Natural History of Untreated Asymptomatic Osteonecrosis of the Femoral Head

2010 ◽  
Vol 92 (12) ◽  
pp. 2165-2170 ◽  
Author(s):  
Michael A Mont ◽  
Michael G Zywiel ◽  
David R Marker ◽  
Mike S McGrath ◽  
Ronald E Delanois
Keyword(s):  
Femoral Head ◽  
Natural History ◽  
History Of

Malignant melanoma arising in the frontal sinuses

1997 ◽  
Vol 111 (4) ◽  
pp. 376-378 ◽  
Author(s):  
Samuel M. Jayaraj ◽  
Jonathan D. Hern ◽  
George Mochloulis ◽  
Graham C. Porter
Keyword(s):  
Malignant Melanoma ◽  
Natural History ◽  
Nasal Cavity ◽  
Paranasal Sinuses ◽  
Frontal Sinus ◽  
Poor Prognosis ◽  
Review Of The Literature ◽  
History Of ◽  
Frontal Sinuses ◽  
Sinonasal Malignant Melanoma

AbstractSinonasal malignant melanoma is rare and usually occurs in the nasal cavity. Presentation is often varied and occurs late in the natural history of the disease, resulting in a poor prognosis. A case is reported of a patient with malignant melanoma arising from the frontal sinus who presented with a forehead swelling and progressive confusion. A review of the literature on malignant melanoma in the nasal cavity and paranasal sinuses regarding its presentation, site of origin and principles of management is discussed.

A Combined Intracapsular and Extracapsular Fracture of the Hip

2002 ◽  
Vol 12 (1) ◽  
pp. 43-46
Author(s):  
S. Shabat ◽  
G. Mann ◽  
V. Barchilon ◽  
B. Kish ◽  
B. Fredman ◽  
...  
Keyword(s):  
Femoral Head ◽  
Avascular Necrosis ◽  
Blood Supply ◽  
Weight Bearing ◽  
Surgical Techniques ◽  
Optimal Solution ◽  
Anatomical Site ◽  
Rare Type ◽  
Non Union ◽  
Extracapsular Fracture

We report a case of an unusual hip fracture that involved the intracapsular area and continued vertically to the extracapsular region below the trochanteric line. The division between these two types of fractures is based on the anatomical site, the blood supply and the mechanical forces that act on the hip. This division is important and influences the different surgical techniques to treat these individual fractures. Femoral neck fractures (intracapsular), particularly those with displacement, can disrupt the blood supply to the femoral head and may be associated with an increased incidence of complications, especially non-union and avascular necrosis (AVN) of the femoral head. These fractures are usually treated either by reduction and fixation, or by hemiarthroplasty. Non-union and avascular necrosis following extracapsular fractures are rare. Treatment involves reduction of the fracture and insertion of a dynamic hip screw. The combination of these two types of fractures is extremely rare and creates a surgical problem without any optimal solution. The focus of this case report is placed on the mechanical axis and weight-bearing forces that play a role in the hip and on the optional surgical techniques in such a rare type of fracture in an elderly osteoporotic patient.

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