Hip joint replacement using monofilament polypropylene surgical mesh: an animal model.

Jacek Białecki,Małgorzata Dorota Klimowicz-Bodys,Krzysztof Kołomecki,Marian Majchrzycki,Edward Wierzchoś,Antoni Szymczak

doi:10.1155/2014/187320

Jacek Białecki, Małgorzata Dorota Klimowicz-Bodys + Show 4 more

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https://doi.org/10.1155/2014/187320

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Abstract

Hip joint dysplasia is a deformation of the articular elements (pelvic acetabulum, head of the femur, and/or ligament of the head of the femur) leading to laxity of the hip components and dislocation of the femoral head from the pelvic acetabulum. Diagnosis is based on symptoms observed during clinical and radiological examinations. There are two treatment options: conservative and surgical. The classic surgical procedures are juvenile pubic symphysiodesis (JPS), triple pelvic osteotomy (TPO), total hip replacement (THR), and femoral head and neck resection (FHNE). The aim of this experiment was to present an original technique of filling the acetabulum with a polypropylene implant, resting the femoral neck directly on the mesh. The experiment was performed on eight sheep. The clinical value of the new surgical technique was evaluated using clinical, radiological, and histological methods. This technique helps decrease the loss of limb length by supporting the femoral neck on the mesh equivalent to the femoral head. It also reduces joint pain and leads to the formation of stable and mobile pseudarthrosis. The mesh manifested osteoprotective properties and enabled the formation of a stiff-elastic connection within the hip joint. The method is very cost-effective and the technique itself is simple to perform.

Highlights

Hip joint dysplasia is classified as a developmental trait and occurs mainly in medium- and large-breed dogs, rarely in small-breed dogs and cats
It is a deformation of the articular elements leading to laxity of the hip components and dislocation of the femoral head from the pelvic acetabulum and, in consequence, to hip joint degeneration resulting in joint pain and lameness [1,2,3]
triple pelvic osteotomy (TPO) is a preventive management and candidates for this treatment should be less than 1 year of age, with no inflammatory or degenerative changes. This technique is recommended when hip dysplasia is diagnosed at an early stage, before secondary degenerative changes have occurred [1, 9, 10]

Summary

Introduction

Hip joint dysplasia is classified as a developmental trait and occurs mainly in medium- and large-breed dogs, rarely in small-breed dogs and cats. The surgical procedures currently available are continually being improved and include the following techniques: triple pelvic osteotomy (TPO) [1, 9, 10], juvenile pubic symphysiodesis (JPS) [6, 7, 9], femoral head and neck resection (FHNE) [11], or total hip replacement (THR) [12,13,14]. Many of these surgical procedures are highly successful with relatively low complication rates; these techniques are expensive and require a long and gradually increasing rehabilitation program in order to restore full fitness. Recovery is frequently hampered by pain in the operated area

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Discussion

Conclusion