La prothèse trapèzométacarpienne anatomique Guepar

Masméjean, E.; Alnot, J.Y.; Chantelot, Christophe; Beccari, R.

doi:10.1016/s1297-3203(02)00002-1

Cited by 38 publications

(12 citation statements)

References 9 publications

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“…14,18,44,45 Faster rehabilitation and higher pinch grip are arguments that favor the use of prosthetic replacement. 20 This study demonstrated that the remaining bone stock in the trapezium, even in advanced osteoarthritic stages, is sufficient to adequately host an implant. It was shown in work by Cooney and colleagues that during normal pinch and grasp the internal forces in the thumb CMC joint are four to five times higher than the corresponding external forces.…”

Section: Discussionmentioning

confidence: 69%

“…Additionally, the removal of one part of the thumb saddle joint-the os trapeziummight be the reason for the loss of pinch grip strength compared to healthy controls. 19,20 Several types of trapeziometacarpal implants were developed to avoid these problems (e.g., Guepar thumb saddle joint prosthesis, Swanson silicone implant arthroplasty). Clinical reports indicate that the recovery after prosthetic replacement of the CMC I is shorter compared with LRTI.…”

Section: Introductionmentioning

confidence: 99%

“…Clinical reports indicate that the recovery after prosthetic replacement of the CMC I is shorter compared with LRTI. 20 However, the high complication potential of common CMC I replacement cannot be neglected. [21][22][23] Not all prostheses seem to be suitable to transfer the high mechanical loads of the thumb saddle joint produced during all grasping movements.…”

Section: Introductionmentioning

confidence: 99%

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Microstructural adaptation in trapezial bone due to subluxation of the thumb

Nufer

Goldhahn

Köhler

et al. 2007

Journal Orthopaedic Research

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Although the thumb saddle is one of the most common sites of degenerative osteoarthritis in the hand, little is known about the altered microstructure in osteoarthritic trapezial bones. External forces resulting from subluxation of the carpometacarpal joint of the thumb (CMC I) should provoke microstructural changes in the trapezium. The purpose of this study was to compare the regional differences of the microstructure between osteoarthritic and healthy trapezial bones. Fifteen trapezia harvested from female patients with radiologically and clinically diagnosed saddle joint osteoarthritis (OA) were compared with 15 unaffected controls. Microstructural parameters, such as bone volume ratio (BV/TV), three-dimensional connectivity (Conn.D), trabecular number (Tb.N), and trabecular thickness (Tb.Th) were studied using a microcomputed tomography (microCT) system. While the trapezial height in OA was 22% less, the sclerotic subchondral bone layer thickness was 50% higher in OA compared with the control group (p < 0.001). In the OA group there was a 42% higher bone volume ratio (p 0.001), an 18% increase in Tb.Th (p ¼ 0.006), and a 10% greater Tb.N (p ¼ 0.034) compared with the control group. Although in both groups BV/TV was significantly lower in the radial region, the radial column showed the highest relative increase in bone volume and structure compared with the control group (þ67% BV/TV, þ20% Tb.Th, þ23% Tb.N). The reinforcement of the bony microstructure in CMC I OA, especially at the radial side, is a sign for bone adaptation reacting to radially shifted joint forces. This has to be considered during the development of new prosthetic alternatives. ß

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Section: Discussionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microstructural adaptation in trapezial bone due to subluxation of the thumb

Nufer

Goldhahn

Köhler

et al. 2007

Journal Orthopaedic Research

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show abstract

“…Some authors believe that STT arthritis is not a contraindication for TMC arthroplasty because there is no correlation with the prognosis; however other authors recommend proceeding with caution [36].…”

Section: Stt Osteoarthritismentioning

confidence: 99%

Complications and failures of the trapeziometacarpal Maia® prosthesis: A series of 156 cases

Bricout

Rezzouk

2016

Hand Surgery and Rehabilitation

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“…Masmejean et al [18] reprochent la perte de mobilité de la colonne du pouce après trapézectomie tout en admettant l'efficacité de cette méthode sur la douleur.…”

Section: Mobilités Du Pouceunclassified

Les reprises de prothèses trapezométacarpiennes ARPE® par trapézectomie. Ligamentoplastie selon la technique de Jones: une étude homogène de six cas et revue de la littérature

Apard

Saint-Cast²

2007

Chirurgie de la Main

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La prothèse trapèzométacarpienne anatomique Guepar

Cited by 38 publications

References 9 publications

Microstructural adaptation in trapezial bone due to subluxation of the thumb

Microstructural adaptation in trapezial bone due to subluxation of the thumb

Complications and failures of the trapeziometacarpal Maia® prosthesis: A series of 156 cases

Les reprises de prothèses trapezométacarpiennes ARPE® par trapézectomie. Ligamentoplastie selon la technique de Jones: une étude homogène de six cas et revue de la littérature

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