Shear Strength of the Pig Capital Femoral Epiphyseal Plate: An Experimental Model for Human Slipped Capital Femoral Epiphysis Fixation Studies

Advances in Bioengineering ◽

10.1115/imece2002-32611 ◽

2002 ◽

Author(s):

Brian J. Ipsen ◽

John L. Williams ◽

Michael J. Harris ◽

Thomas L. Schmidt

Keyword(s):

Shear Strength ◽

Proximal Femur ◽

Bone Grafting ◽

Slipped Capital Femoral Epiphysis ◽

Epiphyseal Plate ◽

Pain Disability ◽

Stabilization Procedure ◽

Joint Incongruity ◽

Biomechanical Factors

Slipped capital femoral epiphysis (SCFE) is the most common hip disorder affecting adolescent children [1]. The etiology is not fully understood but thought to be multifactorial, related to both biological and biomechanical factors [2]. SCFE occurs when the epiphysis of the proximal femur slips in relation to the metaphysis through the growth plate, causing pain, disability and potential long-term sequellae from joint incongruity. The treatment for SCFE typically involves some form of stabilization procedure using pins, screws, bone grafting, osteotomy, or casting.

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Origin of Cam Morphology in Femoroacetabular Impingement

The American Journal of Sports Medicine ◽

10.1177/0363546517697689 ◽

2017 ◽

Vol 46 (2) ◽

pp. 478-486 ◽

Cited By ~ 20

Author(s):

William Z. Morris ◽

Ryan T. Li ◽

Raymond W. Liu ◽

Michael J. Salata ◽

James E. Voos

Keyword(s):

Femoral Head ◽

Proximal Femur ◽

Slipped Capital Femoral Epiphysis ◽

Alpha Angle ◽

Preliminary Evidence ◽

Cam Deformity ◽

Measurement Tools ◽

Cam Morphology ◽

Head Neck

Cam morphology of the proximal femur is an abnormal contour of the femoral head-neck junction present in approximately 15% to 25% of the asymptomatic population, predominantly in males. Alpha angle and femoral head-neck offset ratio are 2 objective measurement tools that define cam morphology. Both primary (idiopathic) and secondary cam deformity develops through distinct mechanisms. The cause of primary (idiopathic) cam morphology remains incompletely understood. Mounting evidence suggests that idiopathic cam morphology develops during adolescence through alterations in the capital femoral epiphysis in response to participation in vigorous sporting activity. While the exact cause of epiphyseal extension has not yet been determined, preliminary evidence suggests that epiphyseal extension may reflect a short-term adaptive response to provide stability to the physis at the long-term cost of the development of cam morphology. Commonly recognized causes of secondary cam deformity include frank slipped capital femoral epiphysis, Legg-Calve-Perthes disease, and deformity after fracture of the proximal femur. Recent studies also support subtle slipped capital femoral epiphysis as a unique and silent cause of a small percentage of subjects previously thought to have idiopathic cam deformity.

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Long-term shear strength weakening of soft interlayers duo to low-permeability

Journal of Contaminant Hydrology ◽

10.1016/j.jconhyd.2021.103840 ◽

2021 ◽

pp. 103840

Author(s):

Chong Ma ◽

Bin Hu ◽

Hongbin Zhan

Keyword(s):

Shear Strength ◽

Low Permeability

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Desmoplastic fibroma in the proximal femur: A case report with long-term follow-up

Oncology Letters ◽

10.3892/ol.2015.3603 ◽

2015 ◽

Vol 10 (4) ◽

pp. 2465-2467 ◽

Cited By ~ 3

Author(s):

YU-BAO GONG ◽

LI-MEI QU ◽

XIN QI ◽

JIAN-GUO LIU

Keyword(s):

Case Report ◽

Proximal Femur ◽

Desmoplastic Fibroma ◽

Long Term Follow Up

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Long-Term Follow-Up Study After Corrective Imhäuser Osteotomy for Severe Slipped Capital Femoral Epiphysis

Journal of Pediatric Orthopaedics ◽

10.1097/00004694-200011000-00010 ◽

2000 ◽

pp. 749-756 ◽

Cited By ~ 1

Author(s):

K. Kartenbender ◽

W. Cordier ◽

B. -D. Katthagen

Keyword(s):

Slipped Capital Femoral Epiphysis ◽

Follow Up Study ◽

Long Term Follow Up ◽

Imhauser Osteotomy

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Long Term Effects of the Latham Presurgical Maxillary Orthopedic Appliance, Including Effects on Tooth Growth

Canadian Journal of Plastic Surgery ◽

10.1177/229255030000800105 ◽

2000 ◽

Vol 8 (1) ◽

pp. 15-20 ◽

Cited By ~ 1

Author(s):

Michel C Samson ◽

Donald H Lalonde ◽

Donald Fitzpatrick ◽

Gerald L Sparkes

Keyword(s):

Bone Grafting ◽

Cleft Lip ◽

Alveolar Bone ◽

Consistent Difference ◽

Long Term Effects ◽

Beneficial Effects ◽

Alar Base ◽

Alveolar Bone Grafting ◽

Base Elevation

Reported beneficial effects of presurgical maxillary orthopedics in cleft lip include reduction of the cleft width, alignment of the maxillary segments, elevation of the alar base on the cleft side, diminished need for alveolar bone grafting and lip closure without tension. Possible adverse effects of presurgical maxillary orthopedics include tooth root damage and inability of periosteoplasty to make bone over the cleft. A series of wide cleft lip patients (n=15) treated with the Latham appliance at the time of lip closure were retrospectively compared with a similar group treated without the Latham appliance. The Latham appliance group (seven unilateral clefts, eight bilateral clefts; mean follow-up 9.5 years; range four to 18 years) was treated between the years 1980 and 1994. None of the 15 patients treated with the appliance had any tooth loss or damage attributable to the pins, and bone formation in the alveolar cleft was observed radiographically in all 13 of the patients who had a periosteoplasty at the time of lip repair, possibly obviating the need for secondary bone grafting. Five of these Latham group patients demonstrated clinical and radiographic evidence of tooth eruption into the periosteoplasty-formed bone. There was no consistent difference in the level of nasal alar base elevation in the two groups.

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