The Cores are produced using the same cartilage processing method as all OCA grafts distributed by JRF Ortho and have viable hyaline cartilage for a superior biomechanical and durable repair. Surgical treatment of this condition often requires tibiotalocalcaneal fusion with use of structural allograft bone.
Reconstruction Of The Acetabulum With Femoral Head Autograft X Download Scientific Diagram
When the joint is resected in a square fashion length is actually lost from the first metatarsal head.
. Femoral and humeral heads designed to provide immediate structural support to restore segmental bone loss or to be ground into corticalcancellous chips. They provide an overview of the necessary steps to perform this procedure to replace the damaged cartilage of a lesion in the anterior superior region of the femoral head. The Allograft OATS donor harvester with a collared guide pin is attached to the drill passed into the proximal graft housing and rested on the grafts surface.
An allograft femoral head is thawed in a warm saline bath at the beginning of the procedure and placed in the bone vice Allogrip Bone Vise DePuy Warsaw IN with the three limbs of the vice gripping the femoral neck. The femoral head has been processed to remove soft tissue cut in half longitudinally and washed to deplete cell and marrow content. This cup-and-cone technique provides a congruent area for placement of the allograft thereby increasing stability.
It has been freeze dried sterilized with gamma irradiation and has an approximate weight of 20g. An uncemented THA augmented with a femoral head autograft offers a way to ensure anatomic placement of the socket in the AP projection if the THA and bone-grafting procedures are performed carefully. Allograft femoral and humeral heads are a versatile option in procedures that require bone restoration due to segmental and critical loss from trauma bone disease or tumour removal.
1 3. Allografts The most common source of allograft is via the donation of the femoral head medical term for the part of the hip joint that is removed during hip. It has been well-documented in published studies that larger grafts at this site increase the risk of complications.
Tibiotalocalcaneal TTC arthrodesis with bulk femoral head allograft is a commonly performed limb salvage procedure when dealing with complex deformity. Cortical wall provides immediate structural. Osteochondral Allografts Precut Fresh OCA Cores JRF Ortho now offers Precut Fresh OCA Cores for the treatment of full thickness osteochondral lesions.
Femoral Head Allograft Harvest A frozen cadaveric femoral head and neck are obtained to allow for adequate length. SAL 10 -6 sterility. The use of femoral head allograft to span bone defects has recently gained popularity due to the fact that it can restore normal limb length and offer a conduit for fusion Fig.
In our experience the use of frozen femoral head is an ideal structural allograft for the treatment of large bone deficits that require fusion. The donor femoral head allograft is secured in the Arthrex Allograft OATS Workstation and perpendicular alignment is confirmed with the OATS sizer. Repair of the deficient acetabulum by the autograft appeared to be complete within 3 years after surgery as judged radiographically.
RELATED ARTICLES PRODUCT SHEETS SURGICAL TECHNIQUES RELATED ALLOGRAFTS Features and Benefits. A fresh-frozen femoral head allograft can provide an appropriate graft for lengthening and ultimate fusion. However this technique has led to mixed results with reported rates of successful arthrodesis as low as 50 Fig.
However little has been reported in patients who receive tibiotalocalcaneal arthrodesis with femoral head allografts for a rigid cavovarus foot type. In this demonstration they outline the technique for an open surgical dislocation with a trochanteric osteotomy to gain access to the joint space. All ankle and tibiotalocalcaneal fusions using FHA between February 2006 and January 2019 were included.
The femoral head allograft is used for resurfacing cartilage defects with mature hyaline cartilage. In addition as reviewed in this chapter when accelerated fusion is an objective the orthopedic surgeon now also has a wide array of more advanced options to. In this article we describe a technique in which an acetabular reamer is used to create a concave surface for placement of a convex femoral head allograft.
We present a technique using a reamer applied to 1. A 24-mm guide pin is placed through the femoral head and neck parallel to the neck axis. We then use a cannulated Coring Reamer System Arthex Naples FL to perform the harvest Fig 2.
We speculate the high. When using bone graft for this purpose most surgeons prefer to utilise femoral head allografts from living donors as this is a readily available graft is easy to work with and has good results in the orthopaedic literature 1. The female reamer corresponding to the same size male reamer used for reaming the defect is used to decorticate the allograft.
One of the advantages of this type of allograft is its ability to preserve limb length 1 2 3 because. Femoral and humeral heads can be shaped and milled in theatre to suit many surgical applications. Half - view product sheet PDF 119KB Half - view technical specification PDF 194KB.
2 3 4. Traditional allografts such as cortical struts ground cortical bone cancellous cubes femoral heads and shaped interbody spacers have played and continue to play a prominent role in orthopedic surgery. Natural bone matrix facilitates cell attachment and proliferation and vascular in-growth.
The aim of this study was to report the results of patients undergoing an ankle arthrodesis or tibiotalocalcaneal fusion using a femoral head allograft FHA. Studies show that osteochondral allografts transplanted within 15 to 28 days of recovery have significant functional and clinical advantages. The harvester is subsequently drilled to a depth of.
Comparison Of 3d Printed Spherical Implants Versus Femoral Head Allografts For Tibiotalocalcaneal Arthrodesis The Journal Of Foot And Ankle Surgery
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