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. 2024 Dec 3;19:819. doi: 10.1186/s13018-024-05298-3

Fig. 3.

Fig. 3

Regions of the hip synovium. A Region #1: the medial capsular recess; Region #3: the lateral capsular recess; Region #2: the anterior capsular recess, which is located between regions #1 and #3. B The posterior recess is divided into two portions by taking the rim of the zona orbicularis as the boundary. Region #4: posteroinferior recess; Region #5: posterosuperior recess. C Region #6: peri-labrum, which is defined as the synovial tissue attached to the labrum; Region #7: the acetabular fossa