Die topografische Beziehung des M. pronator quadratus zum Ansatz des M. brachioradialis - Implikationen für die Refixation nach palmarer Plattenosteosynthese distaler Radiusfrakturen

TY - JOUR

T1 - Die topografische Beziehung des M. pronator quadratus zum Ansatz des M. brachioradialis - Implikationen für die Refixation nach palmarer Plattenosteosynthese distaler Radiusfrakturen

AU - Ries, C

AU - Maier, J

AU - Wegmann, K

AU - Zhang, W

AU - Hohendorff, B

AU - Skouras, E

AU - Müller, L P

AU - Burkhart, K J

N1 - Georg Thieme Verlag KG Stuttgart · New York.

PY - 2013/6

Y1 - 2013/6

N2 - BACKGROUND: In open reduction and volar plate fixation of distal radius fractures, the pronator quadratus (PQ) muscle is usually detached at the radial edge of the distal radius. Repair of the muscle is reasonable for coverage of the plate and to maintain normal pronation of the forearm. However, repair of the muscle is not always satisfactory. In this study, the topographic relationship of both the PQ and the brachioradialis muscle (BR) insertions are investigated with regard to optimising the repair of the PQ in open reduction and volar plate fixation of distal radius fractures.MATERIALS AND METHODS: Twelve forearm pairs fixed in formalin were examined. The muscular boundaries of the PQ and the insertion of the BR were dissected, photographs were taken and measured digitally.RESULTS: The average distance of the PQ insertion was 4.75 cm. Distally, a close topographic relationship exists between the insertions of both the PQ and BR. A fascial connection of both muscles was detected in all specimens. The average distance of the common insertion was 1.75 cm. After removal of the PQ fascia, 0.85 cm of common insertion remained. In 25 % a muscular connection between both the PQ and BR was detected after removal of the PQ fascia.CONCLUSION: Both the PQ and BR have a common connective tissue and partially a common muscular insertion. Detaching the PQ insertion with a part of the BR insertion in open reduction and volar plate fixation of distal radius fractures can presumably lead to a more stable repair of the PQ in contrast to a repair within the muscle.

AB - BACKGROUND: In open reduction and volar plate fixation of distal radius fractures, the pronator quadratus (PQ) muscle is usually detached at the radial edge of the distal radius. Repair of the muscle is reasonable for coverage of the plate and to maintain normal pronation of the forearm. However, repair of the muscle is not always satisfactory. In this study, the topographic relationship of both the PQ and the brachioradialis muscle (BR) insertions are investigated with regard to optimising the repair of the PQ in open reduction and volar plate fixation of distal radius fractures.MATERIALS AND METHODS: Twelve forearm pairs fixed in formalin were examined. The muscular boundaries of the PQ and the insertion of the BR were dissected, photographs were taken and measured digitally.RESULTS: The average distance of the PQ insertion was 4.75 cm. Distally, a close topographic relationship exists between the insertions of both the PQ and BR. A fascial connection of both muscles was detected in all specimens. The average distance of the common insertion was 1.75 cm. After removal of the PQ fascia, 0.85 cm of common insertion remained. In 25 % a muscular connection between both the PQ and BR was detected after removal of the PQ fascia.CONCLUSION: Both the PQ and BR have a common connective tissue and partially a common muscular insertion. Detaching the PQ insertion with a part of the BR insertion in open reduction and volar plate fixation of distal radius fractures can presumably lead to a more stable repair of the PQ in contrast to a repair within the muscle.

KW - Aged

KW - Aged, 80 and over

KW - Cadaver

KW - Female

KW - Fracture Fixation, Internal/methods

KW - Humans

KW - Male

KW - Models, Anatomic

KW - Muscle, Skeletal/pathology

KW - Organ Sparing Treatments/methods

KW - Palmar Plate/injuries

KW - Radius Fractures/pathology

KW - Wrist Injuries/pathology

U2 - 10.1055/s-0032-1328493

DO - 10.1055/s-0032-1328493

M3 - SCORING: Zeitschriftenaufsatz

C2 - 23696162

VL - 151

SP - 272

EP - 277

JO - Z ORTHOP UNFALLCHIR

JF - Z ORTHOP UNFALLCHIR

SN - 1864-6697

IS - 3

ER -