Computerized Matching of Autologous Femoral Grafts for the Treatment of Medial Talar Osteochondral Defects

2005 ◽  
Vol 26 (9) ◽  
pp. 708-712 ◽  
Author(s):  
John V. Marymont ◽  
Gerald Shute ◽  
Hongseng Zhu ◽  
Kevin E. Varner ◽  
Vibor Paravic ◽  
...  
Keyword(s):  
Distal Femur ◽  
Donor Site ◽  
Computer Software ◽  
Optimal Location ◽  
Osteochondral Graft ◽  
Osteochondral Defects ◽  
Potential Donor ◽  
Articular Surfaces ◽  
Surface Contour ◽  
Femoral Condyles

Background: Cored autologous graft from the distal ipsilateral femur has been used to fill osteochondral defects in the talus. There are no studies that compare the articular morphology of potential donor sites on the distal femur with recipient sites on the talus. Methods: Using coronal MRI of the talus and distal femur of five matched cadaver, computer reconstructions of the articular surfaces were prepared. From these, six 10-mm in diameter donor sites from the nonweightbearing surfaces of the medial and lateral aspects of the femoral condyles were matched to three recipient sites on the anterior, middle, and posterior aspects of the corresponding medial talus using customized computer software that minimized differences between the articular surfaces of the graft and the talus. After matching the femoral to the talar graft, the average and maximal distances between the surfaces (surface contour) and the average and maximal distances of the offset at the outer 1 mm of the graft periphery (step-off) were determined. Results: For all graft combinations, the average step-off was 0.24 +/−0.03 mm and the maximum 0.60 mm. The average surface contour was 0.32 +/−0.04 mm and the maximum was 1.16 mm. In all cases, the best donor site was from the superolateral femur for any medial talar lesion. Conclusion: In this study of grafts from the femoral condyles, the superolateral femur was the optimal location for an osteochondral graft for any medial talar lesion.

Ideal Donor Site for Osteochondral Autografting of the Distal Femur Using Radius of Curvature: A 3-Dimensional High-Resolution Scanner Comparison

Cartilage ◽  
2021 ◽  
pp. 194760352110079
Author(s):  
Patrick A. Massey ◽  
Michael T. Lowery ◽  
Garrett Houk ◽  
Kaylan N. McClary ◽  
R. Shane Barton ◽  
...  
Keyword(s):  
High Resolution ◽  
Distal Femur ◽  
Donor Site ◽  
Radius Of Curvature ◽  
Intercondylar Notch ◽  
Recipient Site ◽  
3 Dimensional ◽  
Significant Difference ◽  
Femur Condyle ◽  
Femoral Condyles

Objective To compare radius of curvature (RoC) of distal femur osteochondral autograft transfer (OAT) donor sites from the intercondylar notch and trochlear ridge with recipient sites on the distal and posterior condyles and evaluate differences between recipient sites. Design Nineteen cadaveric femurs were scanned with a 3-dimensional high-resolution sensor. Donor regions included the lateral (LTR) and medial trochlear ridges (MTR), and the lateral (LICN) and medial intercondylar notch (MICN). Recipient regions analyzed were the distal medial (DMFC), posterior medial (PMFC), distal lateral (DLFC), and posterior lateral femur condyle (PLFC). Six-millimeter OAT grafts were simulated, and average RoC of all regions was compared using an analysis of variance. Post hoc testing was performed using Fisher’s least significant difference. Results We found no significant differences in RoC of the LICN compared with all 4 recipient sites ( P = 0.19, 0.97, 0.11, and 0.75 for DLFC, PLFC, DMFC, and PMFC, respectively) or the LTR and MTR to the posterior condyles (LTR vs. PLFC and PMFC; P = 0.72, 0.47, MTR vs. PLFC and PMFC P = 0.39, 0.22, respectively). Significant differences were found for RoC of the MICN compared with each recipient site ( P < 0.001) and between distal and posterior femoral condyles (DLFC vs. PLFC, P = 0.016; DMFC vs. PMFC, P = 0.023). Conclusion The LICN is the ideal donor option for all recipient sites on the femoral condyles with respect to RoC of 6-mm OAT plugs. The MTR and LTR were acceptable donor sources for the posterior condyles, while the MICN was a poor match for all recipient sites. Additionally, the distal femur condyle and posterior femur condyle have different RoCs.

scholarly journals Comparative study of the areas of osteochondral defects produced in the femoral condyles of rabbits treated with gel of sugarcane biopolymer

2011 ◽  
Vol 26 (5) ◽  
pp. 383-386 ◽  
Author(s):  
Paulo Cezar Vidal Carneiro de Albuquerque ◽  
José Lamartine de Andrade Aguiar ◽  
Saulo Monteiro dos Santos ◽  
Nicodemus Pontes Filho ◽  
Roberto José Vieira de Mello ◽  
...  
Keyword(s):  
Sugar Cane ◽  
Digital Camera ◽  
Control Group ◽  
Study Group ◽  
Osteochondral Defects ◽  
Control Groups ◽  
The Right ◽  
And Control ◽  
Natural Healing ◽  
Femoral Condyles

PURPOSE: To measure the healed areas of osteochondral defects produced in femoral condyles of rabbits filled with biopolymer sugar cane gel and to compare these with those of the control group at 90, 120 and 180 days. METHODS: A study was made of 16 New Zealand rabbits, 6 and 7 months old, weighing between 2 and 2.5 kg. Defects of 3.2 x 4 mm were made, with trephine, in the femoral condyles of the right and left knees. As to the study group defects of the medial and lateral condyles of the right knee were used which were filled with Biopolymer Sugar Cane Gel; as to the Control Group defects of the medial and lateral condyles of the left t knees were used which were left open for natural healing. The defects were analyzed at 90, 120 and 180 days after surgery. After euthanasia, the knees were removed and fixed in Bouin's solution for later digital photographic documentation with a digital camera. The areas healed were measured in both the study and control groups using the images obtained from an Image-J® program. Statistical analysis was conducted using the non-parametric Mann-Whitney test. RESULTS: There were no significant differences between the means of the healed areas in the study and control groups at 90, 120 and 180 days after surgery. CONCLUSION: The dimension of the healed areas of the defects treated with the biopolymer sugar-cane gel in the study group was similar to those of the control group, which healed naturally.

The zygomatic bone as a potential donor site for alveolar reconstruction—a quantitative anatomic cadaver study

2004 ◽  
Vol 33 (8) ◽  
pp. 786-791 ◽  
Author(s):  
V.T. Kainulainen ◽  
G.K.B. Sàndor ◽  
C.M.L. Clokie ◽  
A.M. Keller ◽  
K.S. Oikarinen
Keyword(s):  
Donor Site ◽  
Cadaver Study ◽  
Potential Donor ◽  
Zygomatic Bone

Distal femur and knee

2018 ◽  
Author(s):  
Jim Hughes
Keyword(s):  
Distal Femur ◽  
High Energy ◽  
The Body ◽  
Long Bones ◽  
Surgical Equipment ◽  
Load Bearing ◽  
High Energy Trauma ◽  
Articular Surfaces ◽  
Cerclage Wiring ◽  
Selection Of

The knee is one of the main load-bearing joints of the body, and injuries to it can involve damage to the joint or articular surfaces, or fractures to the long bones in case of high-energy trauma. The position of the contralateral leg can cause difficulty in positioning for imaging, but good positioning and technique should allow demonstration of the region for intervention. This chapter covers a selection of orthopaedic procedures involving the distal femur and knee, covering distal femoral plating and LISS plates, tension band wiring of the patella, and cerclage wiring of the patella. Each procedure includes images that demonstrate the position of the C-arm, patient, and surgical equipment, with accompanying radiographs demonstrating the resulting images.

Autologous osteochondral graft for traumatic defects of finger joints

2011 ◽  
Vol 37 (3) ◽  
pp. 251-257 ◽  
Author(s):  
W. C. Wu ◽  
M. W. M. Fok ◽  
K. Y. Fung ◽  
K. H. Tam
Keyword(s):  
Donor Site ◽  
Joint Space ◽  
Donor Site Morbidity ◽  
Finger Joint ◽  
Osteochondral Graft ◽  
Range Of Movement ◽  
No Donor ◽  
The Mean ◽  
Open Injuries

Finger joint defects in 16 adults were treated with an autologous osteochondral graft from the base of the second metacarpal, the radial styloid, the base of the third metacarpal or the trapezoid and these patients were followed up from between 12 and 62 months. There was no donor site morbidity. One patient had resorption of the graft and developed pain. The joint was subsequently fused. The mean range of movement was 55.8% of the opposite normal joint. At follow up, 15 patients had no discomfort or mild discomfort. Three had mild narrowing of the joint space and two had slight joint subluxation. Only two patients with concomitant severe injury to the same limb had difficulty performing daily activities. Ten were open injuries and these had poorer outcomes. A hemicondylar defect of a finger joint can be treated using an osteochondral graft obtained from the same hand.

scholarly journals Treatment of a Femur Nonunion with Microsurgical Corticoperiosteal Pedicled Flap from the Medial Femoral Condyle

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Matteo Guzzini ◽  
Cosma Calderaro ◽  
Marco Guidi ◽  
Carolina Civitenga ◽  
Germano Ferri ◽  
...  
Keyword(s):  
Distal Femur ◽  
Femoral Condyle ◽  
Weight Bearing ◽  
Donor Site ◽  
Pedicled Flap ◽  
Medial Femoral Condyle ◽  
Full Weight Bearing ◽  
Genicular Artery ◽  
Reconstruction Of Bone Defects

Introduction. The vascularized corticoperiosteal flap is harvested from the medial femoral condyle and it is nourished by the articular branch of the descending genicular artery and the superomedial genicular artery. This flap is usually harvested as a free flap for the reconstruction of bone defects at forearm, distal radius, carpus, hand, and recently at lower limb too.Case Report. A 50-year-old Caucasian man referred to our department for hypertrophic nonunion of the distal femur, refractory to the conservative treatments. The first surgical choice was the revision of the nail and the bone reconstruction with a corticoperiosteal pedicled flap from the medial femoral condyle. We considered union to have occurred 3.5 months after surgery when radiographs showed bridging of at least three of the four bony cortices and clinically the patient was able to walk with full weight bearing without any pain. At the last follow-up (25 months), the patient was completely satisfied with the procedure.Discussion. The corticoperiosteal flap allows a faster healing of fractures with a minimal morbidity at the donor site. We suggest that the corticoperiosteal pedicled flap graft is a reliable and effective treatment for distal femur nonunion.

Aneurysmal Bone Cysts in the Hand Treated by Free Non-Vascular Transfer of Metatarsal or Proximal Phalanx from the Foot

1993 ◽  
Vol 18 (6) ◽  
pp. 736-741 ◽  
Author(s):  
G. S. RAO ◽  
P. KEOGH ◽  
H. WEBSTER ◽  
P. G. LUNN ◽  
F. D. BURKE
Keyword(s):  
Donor Site ◽  
Bone Cyst ◽  
Proximal Phalanx ◽  
Donor Site Morbidity ◽  
No Donor ◽  
Joint Reconstruction ◽  
Articular Surfaces ◽  
Aneurysmal Bone Cysts ◽  
And Function ◽  
Second Toe

Two cases of aneurysmal bone cyst in the hand are reported. In one case the entire first metacarpal was resected and grafted using the fourth metatarsal. In the second case diaphysectomy of the middle phalanx of the index digit was performed, and the proximal phalanx of the second toe was used as graft. Satisfactory length and function were maintained, the grafts remained viable and there was no donor site morbidity. Transplant of a metatarsal or toe phalanx to the hand, as a free non-vascularized graft, is a relatively straight forward operation, requires minimal refashioning of the graft, provides articular surfaces for joint reconstruction and leaves little donor site morbidity.

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