PubMed Health⌕ Search

Biomedical subjects

S A Parry

Publications and source records attributed to S A Parry.

3 recordsLinked to original sources
PubMed1997

Scarring of the anterior cruciate ligament to the posterior cruciate ligament does not decrease anterior translation.

Frequently, a patient undergoing anterior cruciate ligament (ACL) reconstruction 4 to 6 weeks following the acute injury will be noted to have decreased anterior translation during a Lachman and anterior drawer testing at the time of surgery compared with their examination at the time of their acute injury. Orthopedic surgeons frequently attribute this decreased anterior translation to scarring of the ACL to the posterior cruciate ligament (PCL). We undertook a cadaver study to evaluate this. Four cadaveric lower extremity specimens underwent a midline posterior approach to the knee followed by arthrotomy. The ACL then was cut from its origin on the lateral femoral condyle. Following its release, the ACL was sutured tightly to the PCL. Prior to dissection, the specimens underwent baseline KT-1000 knee arthrometer testing. Following the arthrotomy but prior to ACL release, the KT-1000 test was repeated. KT-1000 testing then was performed after ACL release and repeated after suturing the ACL to the PCL. The results revealed no change in KT-1000 testing following arthrotomy. Anterior translation increased an average of 5 mm following release of the ACL and after suturing to the PCL. No specimen showed a significant decrease in anterior translation following suturing of the ACL to the PCL. These results indicate that while decreased anterior translation from the time of injury to the time of reconstruction may occur, this cannot be explained based on scarring of the ACL stump to the PCL.

Anterior Cruciate Ligament↗
PubMedDate not supplied

The effect of unilateral varus rotational osteotomy with or without pelvic osteotomy on the contralateral hip in patients with perinatal static encephalopathy.

Forty-eight patients with perinatal static encephalopathy were treated with unilateral varus rotational femoral osteotomy for hip subluxation. Twenty-one of the 48 also had concomitant pelvic osteotomy. Twenty-seven of the patients were nonambulators. Bilateral soft-tissue releases had been performed previously in 20 patients. At the time of varus rotational osteotomy, the mean age was 8 years, 11 months. The indication for a varus rotational osteotomy was femoral head subluxation or dislocation in all cases. The preoperative center-edge angle ranged from -8 degrees to 18 degrees (mean, 4 degrees), and on the contralateral side, the center-edge angle ranged from 0 degree to 32 degrees (mean, 19 degrees). The center-edge angle on the operative side at follow-up averaged 25 degrees (-10 degrees to 78 degrees), an improvement of 21 degrees, and on the contralateral side averaged 27 degrees (range, 9 degrees-40 degrees), an improvement of 8 degrees. Forty-seven patients have had no subsequent surgery on the contralateral hip. One patient had a varus rotational osteotomy on the contralateral hip 5 years postoperatively; however, this hip was subluxated at the time of the index procedure. Twelve patients have had no surgery at any time on the contralateral side. None of these patients had deterioration of the contralateral hip. Surgery on one hip should not, in itself, be an indication for surgery on the contralateral concentrically reduced hip with adequate abduction in patients with acetabular dysplasia secondary to perinatal static encephalopathy.

Adolescent↗