Apophyseal injuries of the pelvis have increased recently with increased participation of teenagers in contact sports. Apophyseal fractures of the pelvis should be ruled out from apophysitis, os acetabuli and bony tumors. We report a case of fracture of anterior-inferior iliac spine following indirect injury to the hip in a young football player. The patient failed to get better with nonoperative management and continued to have pain in the left hip and signs and symptoms of impingement. He improved following surgical excision of the heterotopic bone and did not have any evidence of recurrence at 2 years follow- up.
Adolescent ; Athletic Injuries ; diagnostic imaging ; surgery ; Femoracetabular Impingement ; diagnostic imaging ; surgery ; Follow-Up Studies ; Football ; injuries ; Fracture Fixation ; adverse effects ; methods ; Fractures, Malunited ; diagnostic imaging ; surgery ; Humans ; Ilium ; diagnostic imaging ; injuries ; surgery ; Male ; Osteotomy ; methods ; Risk Assessment ; Spinal Fractures ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; methods ; Treatment Outcome

Snapping hip syndrome is a relatively common problem that can be easily managed with conservative treatment. This syndrome can be divided into external, internal and intra-articular types. Internal snapping hip syndrome is the rarest amongst these and its etiology is not well understood. We report a unique case of osteochondroma arising from the anterior inferior iliac spine (AIIS), which caused the internal snapping hip syndrome with hip pain and restriction of activity. This rare case of snapping hip syndrome from the AIIS was treated surgically and the symptoms completely disappeared after excision of the tumor.
Adult ; *Bone Neoplasms ; Female ; *Hip Joint/diagnostic imaging/physiopathology ; Humans ; *Ilium/diagnostic imaging/physiopathology ; *Joint Diseases/etiology/physiopathology ; *Osteochondroma

OBJECTIVETo radiographically analyze the osseous fixation zone for the iliac crest external fixation with Schanz screws and in order to guide their placement.

METHODSNine adults with 2.0-mm-slice continuous pelvic axial CT scans were selected as research subjects. Each CT scan data was imported into MIMICS 10.0. The osseous fixation zone the upper portion of the anterior column of the acetabulum which is located between the anterior superior iliac spine and the gluteal medius pillar and between the iliac crest and the acetabulum-for the iliac crest external fixation with Schanz screws was reconstructed into true sagittal and true coronal planes by using the software. Then the measurements were taken on the reconstructed planes with measuring tools. Finally, the measured data was analyzed.

RESULTSThe palpable iliac crest segment, which was of 49.6 mm width and located 16.5 mm posterior to the anterior superior iliac spine could be used to locate the start points of the Schanz screws. Under the above-mentioned iliac crest segment, the osseous zone was deep, got ample bony materials and could intraosseously contain Schanz screws with 5.0 mm diameter. The screws could be safely inserted to a minimal depth of 71.7 mm towards the acetabular dome and to a maximal depth of 143.5 mm posterior to the acetabulum.

CONCLUSIONThe study can guide the effective insertion of the iliac crest Schanz screws. By setting a suitable start point in the above-mentioned iliac crest region and angling correctly relative to the acetabulum,the Schanz screw can be inserted into the relative strong cancellous bone above or posterior to the acetabulum with a considerable depth, to getting more bone engagement.

Adult ; Aged ; Bone Screws ; Female ; Fracture Fixation ; Fractures, Bone ; diagnostic imaging ; surgery ; Humans ; Ilium ; diagnostic imaging ; injuries ; surgery ; Male ; Middle Aged ; Orthopedic Procedures ; Tomography, X-Ray Computed

BACKGROUNDMany clinical studies have been published involving the use of a high hip center (HHC), achieved good follow-up. However, there is a little anatomic guidance in the literature regarding the amount of bone stock available for initial implant coverage in this area of the ilium. The purpose of this study was to evaluate the thickness and width of the human ilium and related acetabular cup coverage for guiding acetabular component placement in HHC.

METHODSA total of 120 normal hips in 60 cases of adult patients from lower extremities computer tomographic angiography Digital Imaging and Communications in Medicine data were chosen for the study. After importing the data to the mimics software, we chose the cross sections every 5-mm increments from the rotational center of the hip to the cephalic of the ilium according the body sagittal axis, then we measured the thickness and width of the ilium for each cross section in axial plane, calculated the cup coverage at each chosen section.

RESULTSAt the acetabular dome, the mean thickness and width of the ilium were 49.71 ± 4.88 mm and 38.92 ± 3.67 mm, respectively, whereas at 1 cm above the dome, decreased to 41.35 ± 5.13 and 31.13 ± 3.37 respectively, and 2 cm above the dome, decreased to 31.25 ± 4.04 and 26.65 ± 3.43, respectively. Acetabular cup averaged coverage for 40-, 50-, and 60-mm hemispheric shells, was 100%, 89%, and 44% at the acetabular dome, 100%, 43.7%, and 27.5% for 1 cm above the dome, and 37.5%, 21.9%, and 14.2% for 2 cm above the dome.

CONCLUSIONSHHC reconstructions within 1 cm above the acetabular dome will be an acceptable and smaller diameter prosthesis would be better.

Adult ; Aged ; Cross-Sectional Studies ; Female ; Hip Prosthesis ; Humans ; Ilium ; anatomy & histology ; diagnostic imaging ; Male ; Middle Aged ; Radiography

Osseous hemangioma is a benign vascular tumor, and it usually occurs in the vertebrae and the skull. However, hemangiomas of flat bones are rare, and there are very few reports that describe the radiologic findings of osseous hemangioma of the ilium. We report a unique case of large cavernous hemangioma mimicking a chondrogenic malignant bone tumor originated from the ilium in a 22-year-old female. The mass showed stippled calcifications, heterogeneous enhancement with thick septa and enhanced soft tissue components on CT and MR, and also this mass demonstrated heterogeneous 2-fluoro [fluorine-18]-2-deoxy-D-glucose (18F-FDG) uptake on 18F-FDG PET/CT.
Bone Neoplasms/radionuclide imaging ; Diagnosis, Differential ; Female ; Fluorodeoxyglucose F18/*diagnostic use ; Hemangioma, Cavernous/*radionuclide imaging ; Humans ; Ilium/*blood supply ; Magnetic Resonance Imaging ; Positron-Emission Tomography and Computed Tomography ; Radiopharmaceuticals/*diagnostic use ; Young Adult

Adamantinoma ; diagnostic imaging ; metabolism ; pathology ; surgery ; Adult ; Diagnosis, Differential ; Female ; Femur ; Follow-Up Studies ; Humans ; Humerus ; Ilium ; Keratins ; metabolism ; Male ; Middle Aged ; Mucin-1 ; metabolism ; Retrospective Studies ; Sarcoma, Ewing ; pathology ; Sarcoma, Synovial ; pathology ; Tibia ; Tomography, X-Ray Computed ; Young Adult

Actins ; metabolism ; Bone Neoplasms ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Hypophosphatemia ; blood ; etiology ; Ilium ; Mesenchymoma ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Middle Aged ; Osteomalacia ; blood ; etiology ; Phosphates ; blood ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Tomography, X-Ray Computed

OBJECTIVE: To estimate the chronological age of Han teenagers in Sichuan by the epiphyses development characteristics of iliac crest and ischial tuberosity in X-ray digital images. METHODS: According to TW2 classification principle, combining with the age range of our subjects and epiphyses development regularity, the degree of epiphyses development of iliac crest and ischial tuberosity had been divided into 8 grades (0-7) and 7 grades (0-6), respectively. Based on the degrees, the pelvic X-rays digital images of 691 samples of 16-20 aged teenagers were read and statistically analyzed by SPSS 19.0 software. The multiple linear regression equation was established by skeletal age (Y), development degree of iliac crest epiphyses (X1) and ischial tuberosity epiphyses (X2). RESULTS: There were no statistical differences between two sides of epiphyses development of iliac crest and ischial tuberosity (P>0.05). There were no statistical difference between genders (P>0.05). The re-substitution method of the samples showed that the accuracy of equation as Y=15.269+0.444X1+0.236 X2 was high. The result of the re-substitution method showed a high accuracy of the equation. CONCLUSION The multiple linear regression equation could be used to identify the skeletal age for providing the scientific basis to identify the 18-year-old Han population in Sichuan.
Adolescent ; Age Determination by Skeleton/methods* ; Age Factors ; Asian People/ethnology* ; Bone Development/physiology* ; China/ethnology* ; Epiphyses/diagnostic imaging* ; Female ; Forensic Anthropology/methods* ; Humans ; Ilium/diagnostic imaging* ; Ischium/diagnostic imaging* ; Linear Models ; Male ; Pelvis/diagnostic imaging* ; Tomography, X-Ray Computed ; Young Adult

Arthritis, Juvenile ; diagnosis ; pathology ; Biomarkers, Tumor ; blood ; Biopsy ; Bone Neoplasms ; diagnosis ; pathology ; Child, Preschool ; Diagnostic Errors ; Female ; Hip Joint ; diagnostic imaging ; pathology ; Humans ; Ilium ; diagnostic imaging ; pathology ; Magnetic Resonance Imaging ; Radiography ; Sarcoma, Ewing ; diagnosis ; pathology

OBJECTIVETo investigate the best effective and accepted path of iliac screws for lumbar sacral spine and pelvis to provide reference for reconstruction.

METHODSFrom Feb. 2009 to Aug. 2009, radiographic data of 50 patients were selected for various reasons, pelvic CT scanning and three-dimensional reconstruction and no positive performance, included 28 males and 22 females with an average age of 41.2 years old, ranging from 19 to 65 years. Designed four paths, in path A, B, C, CLIC (crossing point of Chiotic line and posterior iliac crest, located 24 mm on the top of posterior superior iliac spine) was the starting point for the path in the direction of the upper edge of the acetabulum, anterior inferior iliac spine, acetabulum center; in path D, the posterior superior iliac spine was starting point to direct anterior inferior iliac spine. The length of the screw channel and two narrow points in the screw channel of the bone plate thickness data of each different path were measured and analyzed.

RESULTSThe path A (CLIC point to the upper edge of the acetabulum) and the path B (CLIC point to the AIIS) and the path D (PSIS to AIIS) had correspond length of the screw channel, but the thickness of iliac of path A was thicker than that of path B and D. The iliac thickness of path A (CLIC point to the upper edge of the acetabulum) and the path C (CLIC point to the acetabular center) has no significant difference, but the channel length of path A was significant longer than that of path C.

CONCLUSIONPath A from the CLIC point to the direction of the upper edge of acetabular ilium nail route was the longest path and the iliac bone plate was the most thick, and able to accommodate the relatively longest and most coarse iliac screw, but also bear the greatest tension. It is the best iliac nail route.

Adult ; Aged ; Bone Screws ; Female ; Humans ; Ilium ; diagnostic imaging ; surgery ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; instrumentation ; Tomography, X-Ray Computed ; Young Adult