Zurich Cementless Total Hip Replacement

Hummel, Don

doi:10.1016/j.cvsm.2017.02.004

Cited by 14 publications

(15 citation statements)

References 15 publications

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“…24 When the hip hemi-arthroplasty was used as a primary surgery, a standard approach to the hip and preparation of the proximal femur for placement of the femoral stem was performed as previously described. 25 The acetabulum was reamed with a purpose-made spherical reamer, the same size of the intended femoral head. The reamer was centred on the origin of the ligament of the femoral head and oriented perpendicularly to the sagittal axis of the pelvis.…”

Section: Methodsmentioning

confidence: 99%

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Short-Term Clinical Assessment of Hip Hemi-Arthroplasty in 11 Dogs

Huggard¹,

Wicks²,

Corfield³

2021

Vet Comp Orthop Traumatol

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Objective The aim of this study was to assess the short-term clinical outcome in dogs following a hip hemi-arthroplasty for the treatment of primary pathological disorders of the hip and as a salvage procedure following failure of the cup component of a total hip replacement. Materials and Methods Medical records of dogs that had a unilateral hip hemi-arthroplasty performed between 2015 and 2020 were reviewed. Data collected included follow-up orthopaedic examinations performed at 0, 2, 8 and 52 weeks postoperatively, pelvic radiography at 0, 8 and 52 weeks postoperatively and an owner questionnaire (Helsinki chronic pain index [HCPI]). Results Eleven unilateral hip hemi-arthroplasty procedures were identified. The median age at time of surgery was 3.6 years (8 months–10 years) and the median follow-up time was 13 months (range: 2 months–3 years). The HCPI for all dogs at follow-up was median 8 ± 7.30 (range: 5–25). Total HCPI was < 12 for 7/10 dogs and ≥ 12 for 3 dogs. Pelvic radiographs at 1 year confirmed osteointergration of the femoral stem implant and no evidence of implant subsidence or progression of osteoarthritis. However, there was some evidence of mild lucency of the acetabular bed around the prosthetic femoral head and mild peri-acetabular sclerosis in four cases. Conclusion Hip hemi-arthroplasty provides a clinically acceptable treatment for disabling disease of the coxofemoral joint with 10/11 patients achieving acceptable short-term clinical function. Long-term assessment of the hip hemi-arthroplasty and comparison with total hip replacement is indicated.

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Section: Methodsmentioning

confidence: 99%

“…The remainder of the surgical procedure was as previously described. 25 For revision of a THR, a standard craniodorsal approach to the hip was made. The femoral head was disarticulated from the acetabular cup if not already, and the femoral head and neck removed from the stem.…”

Section: Methodsmentioning

confidence: 99%

Short-Term Clinical Assessment of Hip Hemi-Arthroplasty in 11 Dogs

Huggard¹,

Wicks²,

Corfield³

2021

Vet Comp Orthop Traumatol

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“…There are several approaches to surgically treat coxofemoral diseases in dogs and cats [1]. Total hip replacement has become an accepted veterinary orthopaedic procedure for a variety of disorders and often considered gold standard [2,3]. Other contemporary options include juvenile pubic symphysiodesis, double pelvic osteotomy or triple pelvic osteotomy in younger dogs with hip dysplasia [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Femoral Head and Neck Osteotomy on Canines’ Functional Pelvic Position and Locomotion

Engstig

Vesterinen

Morelius

et al. 2022

Animals

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The long-term effect of femoral head and neck osteotomy (FHO) on the locomotory system of dogs was evaluated. The study comprised an owner questionnaire and an orthopaedic examination, anatomical measurements, and pressure-sensitive walkway analysis for dogs. Linear mixed effect models were used for statistical analysis. Ten dogs with a median of 2.5 years since their unilateral FHO were included. According to the questionnaire results, nine dogs had returned to a normal physical activity level. Muscle atrophy (p = 0.005), less extension in the coxofemoral joint (p = 0.003), and less static weight bearing on the FHO limb (p = 0.003) were observed. No consistent pattern regarding tilt or position of the pelvis was noted when measuring height of the tuber ischii (p = 0.39). Five of the dogs tilted away from, and five towards the FHO side when measured from the tuber sacrale with a Myrin goniometer. No differences regarding stance time, swing time, or peak pressure between the FHO and non-FHO limb were seen in trot (p = 0.70, p = 0.26, and p = 0.91, respectively). Over the long term, the FHO limb has muscle atrophy, decreased coxofemoral extension, and decreased static weight bearing. However, this does not seem to affect the trot of the dogs. Dog owners considered the outcome of surgery to be good or excellent.

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“…[1][2][3] Implant systems for THA can be broadly categorized as cemented and cementless. 4 For cementless fixation, there are currently three commercially available systems including BioMedtrix BFX (Biomedtrix, Boonton, New Jersey, United States), Innoplant (Innoplant veterinary, Hannover, Germany) and Zurich cementless (Z-THA) (Kyon Inc., Zurich, Switzerland). All cementless systems rely on osseointegration to achieve longterm fixation.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 The principle of achieving short-term stability varies depending on the implant system, being either press-fit (BioMedtrix BFX cup and stem, Z-THA cup, Innoplant Helica 3Con stem), screw fixation (Z-THA stem) or screw-in fixation of the entire component (Helica TPS stem and Innoplant Screw Cup). 4,7,8 The Innoplant system uses two types of cementless stem components-press-fit (3Con) and screw-in (Helica TPS) fixation respectively. Screw-in components were developed primarily to increase immediate stability of the bone-implant interface, to decrease micromotion and stress shielding of the bone.…”

Section: Introductionmentioning

confidence: 99%

Complications and Long-Term Outcome in 16 Canine Cementless Hybrid Hip Arthroplasties

Bayer

Matiasovic

Steger

et al. 2019

Vet Comp Orthop Traumatol

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Objective The purpose of this study was to retrospectively evaluate the complications and long-term outcomes of total hip arthroplasty (THA) using a hybrid cementless system. Materials and Methods Medical records of dogs that underwent THA using a combined implant system consisting of Innoplant Screw Cup, Kyon taper head and Zurich cementless (Z-THA) stem between March 2010 and March 2015 were reviewed. Dogs with a minimum follow-up of 2 years were included. Signalment, complications and outcome at the latest follow-up examination were recorded. Results Sixteen hybrid THA were performed in 12 dogs. Mean follow-up was 42.5 months. Overall complications occurred in three arthroplasties (19%) including luxation (n = 1), aseptic cup loosening (n = 1) and implant failure with screw breakage followed by stem subsidence (n = 1). Two arthroplasties including prosthesis luxation and aseptic cup loosening were successfully revised using the here described hybrid system and achieved full functional outcome at the last follow-up examination. One arthroplasty with screw breakage and secondary stem subsidence was treated conservatively and achieved an acceptable outcome. Conclusion Hybridization of the Innoplant Screw Cup, Kyon taper head and Zurich cementless for initial THA surgery is feasible. In comparison with the reported complications and outcomes for single implant THA systems, the hybrid THA did not prove to have greater clinical benefits for use in primary THA surgery.

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Zurich Cementless Total Hip Replacement

Cited by 14 publications

References 15 publications

Short-Term Clinical Assessment of Hip Hemi-Arthroplasty in 11 Dogs

Short-Term Clinical Assessment of Hip Hemi-Arthroplasty in 11 Dogs

Effect of Femoral Head and Neck Osteotomy on Canines’ Functional Pelvic Position and Locomotion

Complications and Long-Term Outcome in 16 Canine Cementless Hybrid Hip Arthroplasties

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