title: The retinacula of Weitbrecht in the adult hip.
abstract: OBJECTIVE
  The aim of the study was to describe the retinacula of Weitbrecht in the adult hip.
  
  
  METHODS
  Specimens were obtained from 30 adult hips, average age was 77 years (age range 43-91 years), 8 specimens were fixed by formalin solution and 22 were not fixed.
  
  
  RESULTS
  Anterior retinaculum was found in 40% of examined specimens. The anterior retinaculum was in 83% of cases formed by a flat plate and in 17% by two to three parallel bands. Medial retinaculum was present constantly, extending from the attachment of the articular capsule at the base of the lesser trochanter towards the fovea capitis femoris as far as the edge of the articular cartilage. Typically, the retinaculum had the form of an inverted "T". Of the three retinacula, the medial one was the strongest. Lateral retinaculum was also present constantly. In 89% of cases, it had the form of a quadrilateral plate adjacent to the upper surface of the femoral neck. This plate arises from the insertion of the articular capsule on the upper part of the femoral neck at the base of the greater trochanter close to the trochanteric fossa. The plate extended along the upper edge of the femoral neck as far as the edge of the articular cartilage. Microscopic examination revealed fine blood vessels running through the retinacula.
  
  
  CONCLUSIONS
  Lateral retinaculum and medial retinaculum are constant synovial plicae in terms of both occurrence and localization. Nutritive arteries run through both the plicae to supply the femoral head.
authors: Department of Anatomy of the 3rd Faculty of Medicine, Charles University, Srobarova 50, 100 34, Prague 10, Czech Republic.
authors: Jan
authors: J
authors: Gojda
authors: Jan
authors: J
authors: Bartoníček
references: Br Med J. 1953 Dec 5;2(4848):1236-7
references: 13106393
references: J Bone Joint Surg Am. 1953 Apr;35-A(2):367-83
references: 13052609
references: J Bone Joint Surg Br. 1965 Aug;47:560-73
references: 14341080
references: Orthop Clin North Am. 2005 Apr;36(2):171-6, viii
references: 15833454
references: J Bone Joint Surg Am. 1974 Jul;56(5):941-50
references: 4847241
references: AJR Am J Roentgenol. 2009 Jan;192(1):93-5
references: 19098185
references: Injury. 2009 Mar;40(3):277-9
references: 19243776
references: J Bone Joint Surg Br. 1957 May;39-B(2):358-94
references: 13438980
references: Acta Chir Orthop Traumatol Cech. 1990 Aug;57(5):385-91
references: 2275304
references: J Pediatr Orthop. 1992 Sep-Oct;12(5):603-6
references: 1517419
references: Clin Anat. 1997;10(4):235-8
references: 9213039
references: J Bone Joint Surg Am. 1950 Oct;32 A(4):856-66
references: 14784496
references: J Bone Joint Surg Br. 1953 Aug;35-B(3):442-61
references: 13084696
references: J Anat. 1916 Oct;51(Pt 1):61-4
references: 17103803
references: J Bone Joint Surg Br. 1949 Feb;31B(1):82-93
references: 18124373
references: J Anat Physiol. 1895 Oct;30(Pt 1):53-8
references: 17232172
references: Skeletal Radiol. 2011 Apr;40(4):415-21
references: 20820773
references: J Bone Joint Surg Am. 1976 Oct;58(7):961-70
references: 977628
references: Skeletal Radiol. 2010 Dec;39(12):1255-8
references: 20820771
references: J Anat. 1965 Jan;99:77-88
references: 14245348
references: Okajimas Folia Anat Jpn. 1993 Aug;70(2-3):87-90
references: 8247476
references: J Bone Joint Surg Am. 1971 Apr;53(3):545-56
references: 5580013
references: J Bone Joint Surg Am. 1969 Sep;51(6):1139-53
references: 5817168