femoral head allograft

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.

Femoral Head Allograft Before A And After Removal Of Cartilage B Download Scientific Diagram

When the joint is resected in a square fashion length is actually lost from the first metatarsal head.

. It has been well-documented in published studies that larger grafts at this site increase the risk of complications. We present a technique using a reamer applied to 1. Half - view product sheet PDF 119KB Half - view technical specification PDF 194KB.

RELATED ARTICLES PRODUCT SHEETS SURGICAL TECHNIQUES RELATED ALLOGRAFTS Features and Benefits. Natural bone matrix facilitates cell attachment and proliferation and vascular in-growth. Mandelbaum MD demonstrates an autograft OATS 20 procedure to treat an articular cartilage defect in the knee and how the OATS 20 procedure can be used for transplantation of precut osteochondral allograft cores for the primary implant or to backfill the donor site.

A fresh-frozen femoral head allograft can provide an appropriate graft for lengthening and ultimate fusion. 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. However this technique has led to mixed results with reported rates of successful arthrodesis as low as 50 Fig.

From November 1994 to March 1997 we harvested 137 grafts of the femoral head from 125 patients for donation during total hip arthroplasty according to the guidelines of the American Associations. One of the advantages of this type of allograft is its ability to preserve limb length 1 2 3 because. 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.

Femoral Head Allograft Preparation The donor femoral head allograft is secured in the Arthrex Allograft OATS Workstation and perpendicular alignment is confirmed with the OATS sizer. Femoral and humeral heads can be shaped and milled in theatre to suit many surgical applications. It has been freeze dried sterilized with gamma irradiation and has an approximate weight of 20g.

The aim of this study was to evaluate the mid-term outcome of the use of femoral head allografts for the reconstruction of uncontained defects in revision TKR focusing on complications related to the graft. The femoral head has been processed to remove soft tissue cut in half longitudinally and washed to deplete cell and marrow content. 2 3 4.

Second the femoral head allograft harvest is straightforward is cost effective and has no donor site morbidity. 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. The female reamer corresponding to the same size male reamer used for reaming the defect is used to decorticate the allograft.

SAL 10 -6 sterility. Cortical wall provides immediate structural. Femoral heads removed during primary hip replacement surgery are widely utilised as a source of allograft bone.

1 3. The femoral head allograft is used for resurfacing cartilage defects with mature hyaline cartilage. In this demonstration they outline the technique for an open surgical dislocation with a trochanteric osteotomy to gain access to the joint space.

While pre-formed bone dowels are available in multiple sizes the cost of a single pre-drilled one is often more than that of a femoral head allograft. 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.

These pre-drilled dowels may also be too short and multiple dowels are often need for complete grafting. Despite evidence that processing these grafts to remove blood and marrow elements. In this video we demonstrate our technique for Osteochondral Allograft Transplantation of Femoral Head Osteochondritis Dissecans OCDVisit httpswwwameri.

We retrospectively reviewed 28 patients 30 TKRs with Anderson Orthopaedic Research Institute AORI type 3 bone defects who underwent revision using femoral head. 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. Repair of the deficient acetabulum by the autograft appeared to be complete within 3 years after surgery as judged radiographically.

Femoral and humeral heads designed to provide immediate structural support to restore segmental bone loss or to be ground into corticalcancellous chips. 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. Studies show that osteochondral allografts transplanted within 15 to 28 days of recovery have significant functional and clinical advantages.

Allograft OATS Technique Femoral Transplantation Using a Precut 16 mm OCA Core Bert R. All ankle and tibiotalocalcaneal fusions using FHA between February 2006 and January 2019 were included. In our experience the use of frozen femoral head is an ideal structural allograft for the treatment of large bone deficits that require fusion.

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