Patterns of subchondral bone mineralization in the wrist after midcarpal fusion

Patterns of subchondral bone mineralization in the distal radioulnar joint

“…In our previous studies we could show that an indirect assessment of the loading history in the distal articular surface of the radius is possible in living subjects by means of computed tomography (CT) osteoabsorptiometry. [12][13][14][15][16][17][18] Major parts of these observations have been confirmed by other workgroups in the meantime. 19,20 The aim of the present study was to evaluate subchondral bone mineralization patterns within articular surfaces of the sigmoid notch and the corresponding articular surface of the ulna head in healthy subjects by means of CT osteoabsorptiometry.…”

“…Our previous studies that showed a strong correlation between peak mineralization and long-term stresses acting on the joint provided useful information on the long-term loading history of the joint. 17 On the basis of this data we believe the articular surface of the ulna receives the main load in neutral to supination positions, whereas the sigmoid notch mainly has contact with its dorsal and palmar lips when rotating around the ulna.…”

Knee Posture Predicted from Subchondral Apparent Density in the Distal Femur: An Experimental Validation

“…Mü ller-Gerbl and colleagues introduced a procedure called computed tomography osteoabsorptiometry (CT-OAM), which has been widely used to characterize patterns in apparent density in the subchondral bone of several human joints, including the hip Eckstein et al, 1994;Von Eisenhart-Rothe et al, 1999), patella (Eckstein et al, 1992(Eckstein et al, , 1993Mü ller-Gerbl et al, 1992), tibial plateau (Mockenhaupt and Koebke, 1988;Ahluwalia, 2000), coraco-acromial arch (Oizumi et al, 2003), scapular glenoid fossa , wrist (Giunta et al, 1999(Giunta et al, , 2004Hoogenbergen et al, 2002), and metacarpophalangeal joints (Meirer et al, 2004). The majority of these studies have clinical applications, and their goals have primarily been to evaluate the patterns of normal and pathological load magnitudes.…”

Three-Corner Midcarpal Arthrodesis and Scaphoidectomy

“…Several techniques have been described using different bone grafts for intercarpal fusions, including cancellous graft from the iliac crest or the distal radius 3,5,7,9,10 and corticocancellous grafts. 8,27 Likewise, several techniques have been described using K-wires, 2,4,5,7,9,21,28 staples, 1,2,9,19 screws, 2,28 or specially designed dorsal circular plates, which have shown very high nonunion rates up to 63% and complications as implant failures, low pain relief, and a high incidence of hardware impingement. 29Y32 If compression is achieved with screws, only small amounts of local cancellous bone graft are sufficient to ensure fusion.…”