geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Common site of subchondral insufficiency fractures of the femoral head based on three-dimensional magnetic resonance imaging


, : Common site of subchondral insufficiency fractures of the femoral head based on three-dimensional magnetic resonance imaging. Skeletal Radiology 45(1): 105-113

The objective of this study was to investigate the common sites of subchondral insufficiency fractures of the femoral head (SIF) based on three-dimensional (3-D) reconstruction of MR images. In 33 hips of 31 consecutive patients diagnosed with SIF, 3-D reconstruction of the bone, fracture, and acetabular edge was performed using MR images. These 3-D images were used to measure the fractured areas and clarify the positional relationship between the fracture and degree of acetabular coverage. The fractured area in the anterior portion was significantly larger than in the posterior area. In 11 cases, the fractures contacted the acetabular edge and were distributed on the lateral portion. The indices of acetabular coverage (center-edge angle and acetabular head index) in these cases were less than the normal range. In the remaining 22 cases, the fractures were apart from the acetabular edge and distributed on the mediolateral centerline of the femoral head. The majority of these cases had normal acetabular coverage. The common site of SIF is the anterior portion. In addition, two types of SIF are proposed: (1) Lateral type: the contact stress between the acetabular edge and lateral portion of the femoral head causes SIF based on the insufficient acetabular coverage, and (2) Central type: the contact stress between the acetabular surface and the mediolateral center of the femoral head causes SIF independent from the insufficiency of acetabular coverage. These findings may be useful for considering the treatment and prevention of SIF.

US$19.90

PMID: 26408317

DOI: 10.1007/s00256-015-2258-6


Other references

Peterson W.C.Jr, 1968: Alopecia areata human hair loss. Minnesota Medicine: 1647-1648

Rjabov, S.I.; Rudakova, T.L.; Sencik, R.V.; Maskeeva, Z.M.; Sostka, G.D., 1970: Classification of iron-deficiency anaemias. From observation of more than 200 patients with iron-deficiency anaemia, 10 different forms were classified and are described.

Ratnoff, O.D., 1966: The biology and pathology of the initial stages of blood coagulation. This review brings together the information now available concerning the earliest steps in the coagulation of cell-poor plasma. The 1st step of clotting in vitro is the activation of Hageman factor, a protein deficient in individuals with Hageman...

Yi, Y.-mei.; Li, T.; Ouyang, J.-ying., 2003: Species of important pests in Euonymus japonicus in western Hunan and their prevailing regularity. Zhongguo Senlin Bingchong. July; 224: 14-16

Nicholson, R.; Golden, G., 1966: Blunt abdominal trauma in head injuries. Lancet 2(7467): 793-794

Anonymous, 1964: The assay of pyrethrum. The mercury-reduction methods in current use are considered inherently unreliable. However, a slightly modified version of the A.O.A.C. method is recommended as an interim measure. Some attention is given to the assay of flowers; samples for assay...

Nielsen J.A.; Johnston C.A., 1982: Rapid concurrent analysis of dopamine 5 hydroxy tryptamine their precursors and metabolites utilizing high performance liquid chromatography with electrochemical detection analysis of brain tissue and cerebro spinal fluid. Assays capable of measuring picomole quantities of dopamine (DA), 5-hydroxytryptamine (5-HT), several of their precursors and metabolites concurrently within 25 min were developed utilizing high performance liquid chromatography with electrochemic...

Vatsuro, E.G.; Kashkay, M.Dzh, 1957: Extirpation of frontal lobes influencing leveling processes of signal significance of simultaneous complex conditioned stimuli components. A motor food conditioned reflex (CR) in response to the complex light plus ringing of a bell, and differentiation in response to tactile stimulation plus ringing of a bell have been established in a dog. When the positive components were used sing...

Itoh Yasuto; Takemura Keiji; Ishiyama Tatsuya; Tanaka Yukari; Iwaki Hiromi, 2000: Basin formation at a contractional bend of a large transcurrent fault; Plio-Pleistocene subsidence of the Kobe and northern Osaka basins, Japan. The basin formation process at a contractional bend of a large transcurrent fault is studied here from the viewpoint of extensive subsidence history. The Kobe and northern Osaka Basins in southwest Japan are located at the easternmost left-steppin...

Nicola, G.; Vakser, I.A., 2007: A simple shape characteristic of protein-protein recognition. Motivation: Observation of co-crystallized protein-protein complexes and low-resolution protein-protein docking studies suggest the existence of a binding-related anisotropic shape characteristic of protein-protein complexes.Results: Our study sy...