Articles: joint-instability-etiology.
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Thirty-six consecutive patients with cervical spine instability due to rheumatoid arthritis (RA) were treated surgically according to a stage-related therapeutic concept. The aim of this study was to investigate the clinical results of these procedures. The initial change in RA of the cervical spine is atlanto-axial instability (AAI) due to incompetence of the cranio-cervical junction ligaments, followed by development of a peridontoid mass of granulation tissue. ⋯ At follow-up four patients remained unchanged, all others improved by at least one Ranawat class. All patients, except one, showed solid bony fusion. According to the significantly improved postoperative subjective self-assessment and the clinical and radiological parameters, transoral plate fixation combined with posterior wire fixation after transoral odontoid resection represents an effective reliable and safe procedure for the treatment of irreducible AAK in rheumatoid arthritis.
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Review
[Management of old neglected posttraumatic acromioclavicular joint instability and arthrosis].
Resection arthroplasty of the AC joint was performed in 42 cases of osteoarthrosis and residual instability of traumatic origin including 26 shoulders with horizontal instability of more than half of the width of the clavicula and lesions of the deltotrapezoid fascial complex (Rockwood type II: 7; type III: 9; type IV: 17; type V: 9). 23 cases were treated with a sole Weaver-Dunn procedure. 26 cases with horizontal instability and lesions of the deltotrapezoid fascia (Rockwood IV and V type) were treated in 7 cases with the standard Weaver-Dunn procedure and in 19 cases with a modified Weaver-Dunn procedure in combination with a coracoclavicular (3 x 1) and acromio-clavicular (1 x 1) 1 mm PDS string augmentation and double breasting fascioplasty of the deltotrapezoid complex. ⋯ Cases with horizontal instability (type Rockwood IV and V) seem to be over-represented among patients with failed conservative treatment. Resection arthroplasty with ligament transposition after Weaver/Dunn gives excellent results in posttraumatic osteoarthrosis with mainly vertical and moderate horizontal instability. In cases with advanced horizontal instability after Rockwood IV and V injuries, almost equal results can be reached by an additional coracoclavicular and acriomioclavicular PDS augmentation with deltotapezoid fascioplasty.
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A retrospective radiographic and medical record analysis of 58 patients. ⋯ The use of preoperative dynamic radiographs should improve the selection of patients undergoing laminectomy for the treatment of multilevel cervical cord compression. Dynamic radiographs may also reinforce the need for such adjunctive procedures as fusion and instrumentation, to prevent postoperative destabilization. Preoperative olisthesis with hypermobility in sagittal or horizontal planes must be fused and instrumented.
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Rev Chir Orthop Reparatrice Appar Mot · Jan 1997
[A prospective study of the outcome of anterior laxity of the knee after anterior cruciate ligament reconstruction with procedures using two different patellar tendon grafting methods].
The aim of this study was to evaluate postoperative evolution of anterior laxity, in order to know at what time the elongation of the reconstructed anterior cruciate ligament (ACL) begins to develop after surgery, and if there were any correlations with recuperation of knee flexion or extension. The second purpose of this study was to compare two series of patients operated on by two different procedures for a long standing ACL rupture. ⋯ Evolution of laxity is more favourable in group I with bone-to-bone ligament fixation. Recovering early and complete flexion and extension is not prejudicial for the ligament. Laxity developed between 3 and 6 months and less between 6 and 12 months. KT-1000 is able to detect laxity during early postoperative period. Dynamic radiographs are more precise to control laxity year after year. Informations concerning the two compartments of the knee are of great interest to compare different procedures and to improve new surgical techniques.