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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_15 | Pages 324 - 324
1 Mar 2013
Seki K Tanaka H Sakka A Tokushige A Imagama T Taguchi T
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Background

Excellent results with use of tapered wedged cementless stem have been reported. The purpose of this study was to clarify the indication of tapered wedged cementless stems for patients with poor bone quality.

Method

Sixty-five hemiarthroplasties in 79 patients with diagnosis of femoral neck fracture were performed between February 2004 and August 2011. 14 patients were lost to follow-up after surgery, and it is 19 patients among the leaving 65 patients had the stovepipe canal. There were 2 men and 16 women, with a mean age at time of surgery 85 years (range, 75–92 years). All components were tapered wedged cementless stem (LINEAR: Encore, Kinectiv: ZIMMER). Evaluation of patient followed includes radiographic analysis (canal flare index, canal fill rate, stem alignment, bone reaction, and stem stability) and recording complication.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_15 | Pages 351 - 351
1 Mar 2013
Tanaka H
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INTRODUCTION

Progressive polyethylene wear is associated with the occurrence of osteolysis, which can lead to component loosening and subsequent revision. Massive wear of the polyethylene liner may result in the penetration of the femoral head through the metal shell. Although metallosis after total hip arthroplasty has been well documented in the literature, extensive metallosis with polyethylene wear-through has been only sparsely described. The purpose of the present study was to assess clinical findings and the results of revision total hip arthroplasty in these cases.

METHODS

We evaluated seven hips in five patients who underwent revision total hip arthroplasty because of metallosis with polyethylene wear-through. The average age of the patients at the time of hip revision was 70.1 years. There were granulomatous cysts surrounding the hip joint and osteolysis in the greater trochanter or in the acetabulum. Eroded metal shells with worn-through polyethylene were exchanged. Kerboull-type acetabular reinforcement device were used in five hips and GAP cup in two. Distal interlocking femoral stems were used in four hips and extensively porous-coated stems in two. All cases with osteolysis were in addition treated with bulk or morselized allograft bone. The mean duration of follow-up was 3 years.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 9 - 9
1 Jan 2013
Tanaka H Almobayed R
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Background

Anatomical reduction and stable internal fixation has been recommended as the standard treatment for fracture dislocations of the tarsometatarsal (Lisfranc) joint. Many methods of fixation have been utilised including K-wires and screw fixation, the latter being the preferred method as it provides a stronger more stable construct. However, the screws require removal after the injury has healed.

We present a different method and technique of stabilisation utilising memory staples. The technique is extra-articular and avoids breaching the TMTJ joint surface, is simple and avoids the necessity of removal of hardware.

Methods

11 patients with isolated ligamentous Lisfranc injuries were treated with memory staple fixation over the past 4 years at our centre. Patients' outcome was assessed with use of the Foot & Ankle Disability Index (FADI) Score, the American Foot & Ankle Score, radiographic and clinical follow-up at an average time of 2 years post surgery.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_II | Pages 57 - 57
1 Feb 2012
Tanaka H Hariharan K
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Equinus contracture of the ankle due to a tight Gastrocnemius has been implicated in the pathogenesis of a number of foot and ankle conditions. There are numerous described procedures for release of the Gastrocnemius such as the Strayer procedure.

Our indications for release are in patients with a symptomatic forefoot and an equinus contracture of 5 degrees or more in extension as defined by the Silfverskiöld test. The release is usually combined with a reconstructive procedure. The advantages of our technique are its simplicity, excellent visualisation of the tendon and sural nerve, good wound healing and patient comfort post-operatively.

The procedure can be performed without tourniquet. A 2.5cm incision is made over the medial calf, just distal to the Gastrocnemius muscle indentation. The deep fascia is incised and the edge of the tendon can be visualised. Blunt digital dissection is performed on either side of the tendon to develop a plane. A metal Cusco speculum is inserted to visualise the full width of the tendon. The tenotomy is performed starting medially and the last 5mm of the lateral tendon is left uncut. This reduces the chance of iatrogenic injury to the nerve. The tendon bridge can be left if correction is sufficient, otherwise passive dorsiflexion of the ankle results in completion. Post-operatively, patients are able to mobilise fully with crutches and passive ankle physiotherapy is commenced immediately.

We performed 22 MAGS procedures in 17 patients. There were no Sural nerve injuries and no wound complications. All patients were delighted with cosmesis. Average pre-operative equinus contracture with the leg extended was 18 degrees. Average intra-operative correction of 24 degrees was obtained and at 3 months follow-up, all patients were able to dorsiflex past neutral.