Scaphoid implant resection arthroplasty

Swanson, Alfred B.; Swanson, G de Groot; Maupin, B; Moss, Steven H.; Ganzhorn, Richard W.; Crane, M.W.; Gonzalez, Mark H.; Page, Bernadette

doi:10.1016/s0883-5403(86)80009-2

Cited by 18 publications

(9 citation statements)

References 30 publications

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“…The type of implant used for an individual patient was, however, not routinely recorded. A volar approach was used in 29 patients and a dorsal approach as described by Swanson et al in three (20). The capsule was reinforced using the exor carpi radialis tendon in one case, and a bone shell of the scaphoid was left in place in three patients.…”

Section: Surgical Techniquementioning

confidence: 99%

“…Several treatment options have been recommended such as wrist arthrodesis (8), limited intercarpal fusion (23), proximal row carpectomy (9), wrist denervation (3), and implant arthroplasty (20). Although they relieve pain, these different treatments may have disabling effects, with additional reduction of movement and strength causing interference and loss of function at certain times.…”

mentioning

confidence: 99%

“…The implants were originally designed to act as articulating spacers and maintain the relationship of the carpal bones after resection. The theoretical advantage of this procedure is that it relieves pain, retains movement of the wrist joint, and it has also been claimed to yield predictable results (20). Preserving the integrity of the carpus not only requires the geometry of the articulating surfaces to be intact, but also a ligamentous support.…”

mentioning

confidence: 99%

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Patient-rating of long term results of silicone implant arthroplasty of the scaphoid

Vinnars

Adamsson

Ekenstam

et al. 2002

Scandinavian Journal of Plastic and Reconstructive Surgery and

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Thirty-two patients had silicone implant arthroplasty of the scaphoid in our unit between 1974-1988. Ten years later eight had had their implants removed because they had failed. Twenty-four of the 32 were reviewed at an intermediate clinical follow up examination between 1988-89 and 21 by patient rated wrist evaluation 10 years later. Grip strength compared to the non-injured hand varied between 38% and 136% (mean (SD) 78 (25)%). Nine of the 24 wrists showed no signs of bone cysts, while 15 had intraosseous cysts of various sizes. Patient-rated evaluation gave a median subjective long term overall wrist score of 25, a pain score of 27, and a function score of 22 on a scale from 0 (best) to 100 (worst). Nine out of 21 patients had little or no pain, and 13 out of 21 had total scores of under 25. Many of these patients reported good subjective benefit from silicone scaphoid arthroplasty.

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Section: Surgical Techniquementioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Patient-rating of long term results of silicone implant arthroplasty of the scaphoid

Vinnars

Adamsson

Ekenstam

et al. 2002

Scandinavian Journal of Plastic and Reconstructive Surgery and

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“…In 1962, Swanson introduced a Silastic prosthesis [1,8,10,17,19], which was subsequently adopted worldwide, until the severe problems of silicone synovitis were observed in longer term follow-up. It is interesting to note that the great majority of papers describing the complications of silastic scaphoid implants did not report other biomechanical or anatomical problems; the only, and wellfounded criticism was against the silicone synovitis and the severe wrist destruction generated by the particulate debris generated from the implants.…”

Section: Introductionmentioning

confidence: 99%

The Total Scaphoid Titanium Arthroplasty: A 15-Year Experience

Spingardi

Rossello

2011

Hand (New York, N,Y.)

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Scaphoid nonunion followed by necrosis of bone segments is a common pathologic condition for the hand surgeon, and the difficulty of its management is well known. The total titanium scaphoid replacement, although not well-described in the literature, in our experience represents a reasonable choice in the treatment of this condition. Strict patient selection is necessary to achieve good clinical results. The titanium avoids the silicone synovitis, a well-described complication of silastic implants. Furthermore, this technique permits other surgical steps in case of failure.

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“…Pseudosynovial macrophages that phagocytose or coat the particulate debris are activated to release proinflammatory mediators, and sometimes form multinucleated giant Cells.2-4,23 Much evidence2,33,7-9,! 1,21,22,[24][25][26][27][28] now suggests that particulate wear debris is a causative factor in macrophage activation, mediator release, and subsequent osteolysis. However, the mechanism by which osteolysis occurs is unknown.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of collagenase to particulate titanium: A possible mechanism for collagenase localization in periprosthetic tissue

Kane

DeHeer

Owens

et al. 1994

J of Applied Biomaterials

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Osteolysis is a central feature of aseptic loosening of orthopaedic joint prostheses. This destructive process is believed to result from phagocytosis of implant wear debris by periprosthetic and synovial macrophages and the subsequent release of proinflammatory mediators, including collagenase. Isolated murine macrophages were cultured in vitro with particulate titanium in order to explore the mechanism of macrophage activation by particulate wear debris. The results, in which the amount of secreted, soluble collagenase in culture supernatants was inversely proportional to titanium concentration, suggested that titanium strongly adsorbed secreted collagenase. This inference was confirmed by direct binding assays in which particulate titanium coated with adsorbed collagenase bound an alkaline phosphatase conjugated anti-collagenase antibody, but not a conjugated anti-IgG antibody. Adsorption of collagenase was not influenced by preincubation of titanium particles with albumin. The adsorbed collagenase remained enzymatically active as indicated by its ability to hydrolyze a synthetic peptide substrate. These results demonstrate that particulate titanium stimulates collagenase production by macrophages and then strongly adsorbs the secreted proinflammatory enzyme. The process of macrophage stimulation, collagenase secretion, and adsorption may represent an important mechanism for localization and concentration of collagenase in periprosthetic and synovial tissue, a mechanism that ultimately triggers bone resorption through osteoclast activation.

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Scaphoid implant resection arthroplasty

Cited by 18 publications

References 30 publications

Patient-rating of long term results of silicone implant arthroplasty of the scaphoid

Patient-rating of long term results of silicone implant arthroplasty of the scaphoid

The Total Scaphoid Titanium Arthroplasty: A 15-Year Experience

Adsorption of collagenase to particulate titanium: A possible mechanism for collagenase localization in periprosthetic tissue

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