bone block

bone block

surgical procedure in which a bone graft is placed adjacent to a joint to limit motion of the joint mechanically or to improve the stability of the joint, for example, at the ankle joint to correct foot-drop by preventing plantarflexion past 0°, but allowing dorsiflexion beyond 0°, for example, at the glenohumeral joint to prevent posterior instability.

bone block

n.
A surgical procedure in which the bone next to the joint is modified to limit the motion of the joint.

bone block

(bōn blok)
A surgical procedure in which the bone adjacent to the joint is modified to limit the motion of the joint mechanically.
References in periodicals archive ?
A 7 or 8 mm cannulated drill bit is used to open the tunnel for the bone block. The posterior cortex of the tibia is kept intact.
We present a technique of ACL reconstruction with quadriceps tendon autograft (QTA) using a patellar bone block. The tendon end is fixed in the femoral tunnel and the bone plug in the tibial tunnel using reabsorbable interference screws.
Lazovic and coworkers (16) demonstrated that an improper bone block fixation might lead to enhanced articular cartilage degeneration.
When the superior peroneal retinaculum is deficient, reconstructive procedures include groove deepening, (8,10,12) bone block procedures, (13) reinforcement of the superior peroneal retinaculum with a tendon graft, (7,8,14-16) peroneal tendons rerouting, (17,18) or a combination of these techniques.
Grafts were pre-tensioned at 50 N for 10 minutes on a standard graft board and were then inserted into synthetic Sawbones bone block (Pacific Research Labs, Vashon, WA) simulating cancellous bone with a density of 0.32 g/cc.
The glenoid edge displacement was measured as the deviation from the bone block to the edge of the glenoid when the humeral head was placed at each of the three aforementioned positions.
In addition, one patient required augmentation with a posterior bone block for significant glenoid rim deficiency.
Clinically, it is generally believed that a heavier orthodontic force is needed for the en-masse movement of the bone block with the tooth after a corticotomy.13,14,16,17 However, our results suggest that conventional orthodontic force would increase the velocity of orthodontic tooth movement, possibly by the acceleration of the bone turnover mechanism at an early stage after a corticotomy.
Sanders, "The use of a bone block graft from the chin for alveolar ridge augmentation," International Journal of Periodontics and Restorative Dentistry, vol.
Thus, movement of the bone block with included teeth in CO is larger and more unstable than movement of teeth in the weakened alveolar bone of CAO.
Various bone augmentation techniques have been described in the literature in order to reconstruct deficient alveolar ridges such as particulate bone grafting, guided bone regeneration, autogenous bone block graft, ridge expansion, and alveolar distraction osteogenesis (McAllister and Haghighat, 2007; Chiapasco et al., 2006 & 2007; Esposito et al., 2006).
A modified Latarjet procedure with a coracoid bone block was successful in achieving increased patient satisfaction and return to former activity levels in 35 patients (mean age 35 years, range 20-58) in a study by Atalar et al.