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Biomedical subjects

J R McCarroll

Publications and source records attributed to J R McCarroll.

At least 19 recordsLinked to original sources
PubMed1995

Anterior cruciate ligament injuries in young athletes. Recommendations for treatment and rehabilitation.

Complete midsubstance tears of the anterior cruciate ligament (ACL) in skeletally-immature adolescents are being diagnosed and reported with increasing frequency. Conservative treatment of such ACL tears in junior high schools, subsequent meniscal tears, and very early osteoarthritis. Results of primary repair of the torn ACL and extra-articular reconstructive procedures have been disappointing. Intra-articular ACL reconstruction in young athletes approaching skeletal maturity using the autogenous patellar tendon graft gives excellent knee stability, and decreases the risk of meniscal tears. Athletes are able to return to competitive sports at their preinjury level. Here, the existing literature on the subject of midsubstance ACL tears in young athletes is reviewed, and guidelines for the management of ACL-deficient knee in this population are provided.

Adolescent↗
PubMed1992

Knee dislocations with intact PCL.

Complete knee dislocations are infrequent but serious injuries resulting from a wide spectrum of traumatic events. Significant soft tissue and ligamentous damage usually result. Previous experience and several reports in the literature had led us to believe that complete dislocations were associated with both ACL and PCL rupture. Three cases of documented complete knee dislocation in which the PCL is preserved intact are presented.

Adolescent↗
PubMed1991

Low-velocity knee dislocation.

Complete knee dislocation is an uncommon but potentially devastating injury with a reported high rate of neurovascular injury. Treatment of this ligamentous injury is controversial. The operative (repair of all ligaments) and nonoperative management of ligament injuries appears to result in a stiff knee (decreased range of motion [ROM]), and/or a significant incidence of clinical instability and pain. We report our data on low-velocity knee dislocations and present a treatment plan of noninvasive assessment of the vascular status, a stabilizing procedure centered on posterior cruciate ligament reconstruction (PCL) and an aggressive rehabilitation program that can result in improved ROM, acceptable stability, and a more optimal functional outcome.

Adolescent↗
PubMed1983

Health costs of a reduced energy supply.

Health effects associated with electricity production, especially air pollution from fossil fuel combustion, have received much attention in the past 30 years. Virtually no attention has been paid to the health costs of a reduced or overpriced energy supply although these are real and formidable. Stringent regulations mandating control technology on stack emissions and/or burning of low sulfur fuels have been promulgated which cost the American public billions of dollars. These have indeed alleviated some health problems, but pressures to further tighten regulations offer little chance of further health benefits commensurate with their cost and are most likely to produce a new series of problems.

Aged↗
PubMed1983

The surgical treatment of chondromalacia of the patella.

In a retrospective review of 184 knees treated for surgically diagnosed chondromalacia of the patella, the average follow-up period was 3.9 years. The treatment rendered included trephine and drilling in 71 knees, facetectomy in 57 knees, shaving in 35 knees, and a combination procedure in 21 knees. Knees were graded as 2, 3, or 4, depending on the depth and severity of the lesion. The best results were in Grades 2 and 3 disease treated by trephine and drilling or facetectomy. Six patients required further patellar surgery during the follow-up period. The purpose of surgical treatment of the patellar articular surface is to relieve pain and preserve the mechanical advantage of the patella for normal knee function.

Adolescent↗
PubMed1983

Triggering of the great toe. A case report.

A 20-year-old male athlete had painful triggering and occasional locking of the great toe caused by entrapment of the flexor hallucis longus tendon within the flexor tendon sheath posterior to the left medial malleolus. No rupture of the tendon fibers, tendonitis, or supernumerary muscle was found. At open operation an elongated flexor hallucis longus was found entrapped under the tendon sheath in the ankle. After other therapy methods failed, the condition was relieved by a surgical procedure that released the flexor hallucis longus muscle from the tendon sheath.

Adult↗
PubMed1981

Isolated staphylococcal infection of the sternoclavicular joint.

An acute monoarticular infection of the sternoclavicular joint due to coagulase-positive Staphylococcus aureus occurred without predisposing factors in a 48-year-old man. Pyogenic infection must be considered as a cause of pain and swelling of the sternoclavicular joint. Correctly diagnosed and promptly treated, the end results of sternoclavicular joint infection can be excellent.

Arthritis↗
PubMedDate not supplied

Posterior problems in the knee. Posterior cruciate insufficiency and posterolateral rotatory insufficiency.

During a recent three-year period, 39 patients underwent surgical procedures for lesions of the posterior complex of the knee. The results in 28 followed for greater than six months (average followup, 16 months) are reported; eight are presently in the early rehabilitative phase and three have been lost to followup. In reconstruction for chronic laxity, a semitendinosus replacement of the posterior cruciate ligament with anterior advancement of the lateral arcuate complex is recommended. Use of the medial gastrocnemius tendon is still advised in selected cases. Reconstruction for posterolateral rotatory laxity with an intact posterior cruciate is performed with anterior advancement of the popliteus tendon and the arcuate complex. Pes anserinus transfer, imbrication of the posterior oblique ligament, and biceps tenodesis may be performed as supplemental procedures.

Follow-Up Studies↗