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Biomedical subjects

R M Guignard

Publications and source records attributed to R M Guignard.

8 recordsLinked to original sources
PubMed1992

[Esthetic and functional scar sequelae: plastic reconstruction of soft tissue].

The irregularities of a scarred area result of the destruction or alteration of the soft tissues. Functional consequences may occur if the scar tissue directly apply on a bony structure without any protection against shocks. Finally an underlying osteitis or unconsolidated fracture cannot be cured unless a good skin coverage and sufficient local vascularization are obtained. Secondary correction of the scar deformations intend to create a new subcutaneous layer. This can be done with adjacent adipous tissue, or by transfer of a well vascularized tissue, such as a muscle, if the underlying structures make it necessary. Some recent techniques are illustrated, especially tissue expansion and pediculated or free microvascular muscle transfer.

Cicatrix↗
PubMed1991

[Incomplete section of a superficial flexor tendon in zone II: successive complications and quadriga syndrome].

Partial section of the flexor tendon may be asymptomatic and heal without sequelae. However, in the absence of primary treatment, they may lead to subsequent complications such as: tendon locking due to incarceration of a partially detached slip of tendon, jump phenomena due to irregularity of the surface or the volume of the tendon, which induces a sudden jerk as the tendon passe through the retinaculum, and lastly, secondary tendon rupture. These complications all occurred in the case reported here, who also presented with syndrome of the quadriga. Locking of the intact deep flexor tendon by the ruptured superficial tendon interfered with the movements of the other fingers. Resection of the ruptured tendon was able to restore complete function. Opinions diverge concerning the need to suture partial sections of the flexor tendons, but the authors agree on the great importance of meticulous surgical exploration and immediate controlled mobilisation, which ensures the best functional results.

Adult↗
PubMed1986

The role of microvascular free soft tissue transfer in reconstructive surgery.

Free vascularized transfers have recently provided new perspectives on soft tissue replacement. Their main advantage over conventional pedicle flaps is the shortened hospital stay and overall treatment, particularly in traumatic injuries of the lower leg. Our review of 15 consecutive cases of free flaps show a high rate of early complications (33% surgical revision) and a low rate of failure (1 partial loss). The indications for a free flap versus pedicle flap are discussed, as well as the choice of a skin flap or muscle flap or musculocutaneous flap, with regard to their results and their consequences at the donor site.

Extremities↗
PubMed1985

Intravenous regional anesthesia.

Intravenous regional anesthesia is a simple and effective method of analgesia of an extremity by intravenous injection of a local anesthetic while the circulation is interrupted. Although the pharmacokinetics of the injected drug is relatively well known, its precise mode of action is still not well understood. The complications of the technique are uncommon and generally minor ones. They occur immediately after tourniquet release. The relative and absolute contra-indications to the use of intravenous regional anesthesia are presented.

Anesthesia, Conduction↗