Jan 8, 2025 · Hitchhiker thumb deformity, also known as Z-thumb, zig-zag deformity, or duckbill thumb, is a clinical and radiographic sign most commonly associated with rheumatoid arthritis (RA) 1,2 although is non-specific and can be seen in first carpometacarpal osteoarthritis 3 and pre-axial polydactyly of the thumb 4.

Jan 8, 2025 · The Z or zig zag deformity is one of the musculoskeletal manifestations of rheumatoid arthritis in hand 1,2: radial deviation at the wrist. ulnar deviation of the digits, and often. palmar subluxation of the proximal phalanges. This should be differentiated from the Z-thumb deformity, also known as the hitchiker thumb deformity.

Bilateral hitchhiker thumb deformity (Z-thumbs), seen as flexion of the metacarpophalangeal joint and hyperextension of the interphalangeal joint. Periarticular osteopenia is noted.

Feb 18, 2024 · Boutonnière deformity is the eponymous name of a musculoskeletal manifestation of rheumatoid arthritis presenting in a digit, with the combination of: flexion contracture of a proximal interphalangeal (PIP) joint; extension of a distal interphalangeal (DIP) joint

Feb 18, 2024 · Swan neck deformity is a musculoskeletal manifestation of rheumatoid arthritis presenting in a digit of the hand, due to the combination of: hyperextension of a proximal interphalangeal (PIP) joint; flexion of a distal interphalangeal (DIP) joint; Pathology

Feb 18, 2024 · Jaccoud arthropathy is a deforming non-erosive arthropathy characterized by ulnar deviation of the second to fifth fingers with metacarpophalangeal joint subluxation. Clinical presentation Jaccoud arthropathy is characterized by marked ulnar su...

Jan 8, 2025 · Thumb OA Osteoarthritis of the hand is highly prevalent with the hand being the most common site of osteoarthritis (OA) . It can be highly disabling, with severe cases comparable to rheumatoid arthritis in terms of disability.

Jan 8, 2025 · Thumb OA Osteoarthritis of the hand is highly prevalent with the hand being the most common site of osteoarthritis (OA) . It can be highly disabling, with severe cases comparable to rheumatoid arthritis in terms of disability.

Apr 27, 2020 · A mnemonic to remember the features of Z deformity of the hand in rheumatoid arthritis is: WRD UPP; Mnemonic. Consider mnemonic to be pronounced "word up" to help remember it. WR: wrist radial deviation DU: digits ulnar deviation; PP: proximal phalanges palmar subluxation; See also. Z deformity

Aug 28, 2024 · Arthritis mutilans is a severe form of many inflammatory arthropathies, most commonly psoriatic (PsA) and rheumatoid arthritis (RA), characterized by "telescoping" of the fingers where osteolysis leads to articular collapse, allowing loose skin and the ability of these digits to have the motion of a telescope.. Clinical presentation. Patients may present with opera glass hand (skin folds due ...