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Sources of S ensory I nnervation of the H ip J oint C apsule in the R abbit – A R etrograde T racing S tudy
Author(s) -
Dudek A.,
Chrószcz A.,
Janeczek M.,
Sienkiewicz W.,
Kaleczyc J.
Publication year - 2013
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/ahe.12028
Subject(s) - anatomy , retrograde tracing , capsule , joint capsule , sensory system , ganglion , dorsal root ganglion , dorsum , biology , medicine , neuroscience , botany
Summary The aim of the study was to investigate the sensory innervation of the hip joint capsule in the rabbit. Individual animals were injected with retrograde fluorescent tracer F ast B lue ( FB ) into the lateral aspect of the left hip joint capsule (group LAT , n = 5) or into the medial aspect of the hip joint capsule (group MED , n = 5), respectively. FB ‐positive ( FB +) neurons were found within ipsilateral lumbar ( L ) and sacral ( S ) dorsal root ganglia ( DRG ) from L 7 to S 2 (group LAT ) and from L 6 to S 4 (group MED ). They were round or oval in shape with a diameter of 20–90 μm. The neurons were evenly distributed throughout the ganglia. The average number of FB + neurons was 16 ± 2.8 and 27.6 ± 3.5 in rabbits from LAT and MED , respectively. The largest average number of FB + neurons in animals of group LAT was found within the S 1 DRG (8 ± 1.7), while S 2 ganglion contained the smallest number of the neurons (3.6 ± 1). In the L 7 DRG , the average number of FB + neurons was 6.2 ± 1.6. In rabbits of MED group, the largest number of FB + neurons was found within the S 1 DRG (13.4 ± 4), while the smallest one was found within the S 3 ganglion (1.4 ± 0.4). In L 6, L 7, S 2 and S 4 ganglia, the number of retrogradely labelled neurons amounted to 1.6 ± 0.5, 4 ± 1.5, 4.4 ± 1.5 and 2.8 ± 1.7, respectively. The data obtained can be very useful for further investigations regarding the efficacy of denervation in the therapy of hip joint disorders in rabbits.