PURPOSE: This study was performed to evaluate the effect of the implant recipient site preparation methods on primary stability of implants with the instruments of Osstell(TM) and Periotest(R) in the iliac bone of cadaver. METHODS AND MATERIALS: The 8 iliac bones in 4 cadavers and implants treated with resorbable blasting media (RBM) were used. Periotest(R) (Simens AG, Germany) and Osstell(TM)(Model 6 Resonance Frequency Analyser: Integration Diagnostics Ltd., Sweden) were used to measure primary stability of implants. Implants were inserted into the iliac crest of the cadaver. In control group, the recipient site was prepared according to the manufacturer's recommendation: 1.8 mm guide drill, 2.0 mm initial drill, 2.7 mm pilot drill, 2.7 mm twist drill, 3.0 mm twist drill, 3.3 mm pilot drill, 3.3 mm twist drill, and 3.3 mm countersink drill as well as tapping drill were used in order. In the group 1, implant recipient sites were prepared by sequentially drilling from 1.8 mm guide drill to 3.0 mm twist drill and then inserted implants without countersinking and tapping. In the group 2, implant recipient sites were prepared to 3.0 mm twist drill and countersink drill and then inserted implants without tapping. In the group 3, the sites were prepared to 3.0 mm twist drill and countersink drill as well as tapping drill. In the group 4, the sites were prepared to 3.3 mm twist drill. In the group 5, the sites were prepared to 3.3 mm twist drill and countersink drill. A total of 60 implants were placed (n=10). The stability was measured using Osstell(TM) and Periotest(R) mesiodistally and buccolingually. To compare the mean stability of each group statistically, One-way ANOVA was used and correlation of instrument were analyzed using SPSS 12.0. The results obtained were as follows; 1. The stability of group 1 measured using Osstell(TM) and Periotest(R) buccolingually showed the highest, and there are significant difference statistically between control group and experimental group 1,2,4 in each instruments respectively (P<0.05). 2. The stability of group 1 measured using Osstell(TM) and Periotest(R) mesiodistally showed the highest. There are significant difference statistically between control group and all experimental groups in Osstell(TM), and between control group and experimental group 1,2,3,4 (P<0.05). 3. There are high correlation between the measurements of Osstell(TM) and Periotest(R) (P<0.05). CONCLUSION: These results indicate that the primary stability of implant can be obtained by the recipient sites preparation with smaller diameter drill than that of implant or minimal drilling.
Cadaver ; Ilium ; Mandrillus

PURPOSE: This study was performed to evaluate the effect of the implant recipient site preparation methods on primary stability of implants with the instruments of Osstell(TM) and Periotest(R) in the iliac bone of cadaver. METHODS AND MATERIALS: The 8 iliac bones in 4 cadavers and implants treated with resorbable blasting media (RBM) were used. Periotest(R) (Simens AG, Germany) and Osstell(TM)(Model 6 Resonance Frequency Analyser: Integration Diagnostics Ltd., Sweden) were used to measure primary stability of implants. Implants were inserted into the iliac crest of the cadaver. In control group, the recipient site was prepared according to the manufacturer's recommendation: 1.8 mm guide drill, 2.0 mm initial drill, 2.7 mm pilot drill, 2.7 mm twist drill, 3.0 mm twist drill, 3.3 mm pilot drill, 3.3 mm twist drill, and 3.3 mm countersink drill as well as tapping drill were used in order. In the group 1, implant recipient sites were prepared by sequentially drilling from 1.8 mm guide drill to 3.0 mm twist drill and then inserted implants without countersinking and tapping. In the group 2, implant recipient sites were prepared to 3.0 mm twist drill and countersink drill and then inserted implants without tapping. In the group 3, the sites were prepared to 3.0 mm twist drill and countersink drill as well as tapping drill. In the group 4, the sites were prepared to 3.3 mm twist drill. In the group 5, the sites were prepared to 3.3 mm twist drill and countersink drill. A total of 60 implants were placed (n=10). The stability was measured using Osstell(TM) and Periotest(R) mesiodistally and buccolingually. To compare the mean stability of each group statistically, One-way ANOVA was used and correlation of instrument were analyzed using SPSS 12.0. The results obtained were as follows; 1. The stability of group 1 measured using Osstell(TM) and Periotest(R) buccolingually showed the highest, and there are significant difference statistically between control group and experimental group 1,2,4 in each instruments respectively (P<0.05). 2. The stability of group 1 measured using Osstell(TM) and Periotest(R) mesiodistally showed the highest. There are significant difference statistically between control group and all experimental groups in Osstell(TM), and between control group and experimental group 1,2,3,4 (P<0.05). 3. There are high correlation between the measurements of Osstell(TM) and Periotest(R) (P<0.05). CONCLUSION: These results indicate that the primary stability of implant can be obtained by the recipient sites preparation with smaller diameter drill than that of implant or minimal drilling.
Cadaver ; Ilium ; Mandrillus

No abstract available.
Humans ; Ilium* ; Tissue Donors*

Agressive osteoblastoma is a very rare primary bone tumor having locally aggressive and destructive natures.But distant metastasis is not well occurred. Aggressive osteoblastoma may be similar to osteoblastomaradiologically, but has different pathological featurs. We experienced one case of aggressive osteoblastomaarising from left ilium and report this case with review of the literatures.
Ilium ; Neoplasm Metastasis ; Osteoblastoma

The principal cause of avulsion fracture of anterior superior iliac spine is sudden powerful contraction of sartorius muscle in strenuous sporting activities. The condition usually occurs in young people in whom the apophysis has still not firmly united to the ilium. We presented the three cases of avulsion fracture of anterior superior iliac spine which occurred during sprinting in Physical Fitness Test.
Ilium ; Physical Fitness ; Spine ; Sports

Bone Neoplasms ; Humans ; Ilium ; Paraganglioma ; Sacrum

Purpose: To evaluate the clinical and radiological results of a new innominate osteotomy in Legg-Calve-Perthes' disease (LCPD). Materials and Methods: This study examined 25 hips that were treated with a new innominate osteotomy for LCPD. The treatment involved the anterior half of the ilium being osteomized in a direction of 45degrees to the coronal plane and 30degrees to 45degrees to the sagittal plane, and the posterior half of the ilium being cut using a Gigli saw according to the conventional method. The mean follow-up duration was 5.5 years. Stable interposition of the bone block was achieved using a single biodegradable screw in 8 hips, and without any fixation device in 17 hips. Results: The clinical results according to the criteria of Robinson were good in 20 hips. Twelve hips was graded as good by the Mose method, according to the criteria of Stulberg, 8 hips were included in class I, 6 hips in class II, 8 hips in class III, and 3 hips in class IV. The mean center-edge angle improved from 19.4degrees to 30.2degrees. Conclusion: The new innominate osteotomy is simpler and easier to perform than a routine Salter osteotomy, and satisfactory clinical results can be obtained without fixing the Kirschner wire.
Follow-Up Studies ; Hip ; Ilium ; Osteotomy*

OBJECTIVE: Among the various sacropelvic fixation methods, S2 alar-iliac (S2AI) screw fixation has several advantages compared to conventional iliac wing screw. However, the placement of S2AI screw still remains a challenge. The purpose of this study was to describe a novel technique of free hand S2AI screw insertion using a K-wire and cannulated screw, and to evaluate the accuracy of the technique.METHODS: S2AI screw was inserted by free hand technique in sixteen consecutive patients without any fluoroscopic guidance. The gearshift was advanced to make a pilot hole passing through the sacroiliac joint and directing the anterior inferior iliac spine. A K-wire was placed through the pilot hole. After introducing a cannulated tapper along with the K-wire, a cannulated S2AI screw was installed over the K-wire.RESULTS: Thirty-three S2AI screws were placed in sixteen consecutive patients. Thirty-two screws were cannulated screws, and one screw was a conventional non-cannulated screw. Thirty out of 32 (93.8%) cannulated screws were accurately positioned, whereas two cannulated screws and one non-cannulated screw violated lateral cortex of the ilium.CONCLUSION: The technique using K-wire and cannulated screw can provide accurate placement of free hand S2AI screw.
Hand ; Humans ; Ilium ; Sacroiliac Joint ; Spine

Anesthesia, General ; Animals ; Dogs ; Ilium ; Maxilla ; Osseointegration

A case of Lymphangiomatosis of the skeleton and soft tissue in a 23 years old woman is presented. Lymphangiomatosis are benign tumors formed of lymphatic vessel and like hemangiomatosis are probably best thought of as harmatomatous malformation. As term imply, the endothelial space in these lesions are lymph-rather than blood containing. Bone involvement are very rare condition that affect mainly the ilium and features a largely lytic pattern, consisting of tiny elliptical radiolucents slots. Treatment and Prognosis depend on the site and extent of involvement and progression. Although irradiation may be the treatment of choice, the lesions have not been usually successfully treated.
Female ; Humans ; Ilium ; Lymphatic Vessels ; Prognosis ; Skeleton