Search PubMed⌕ Search

Biomedical subjects

M J Sandow

Publications and source records attributed to M J Sandow.

11 recordsLinked to original sources

Proximal scaphoid costo-osteochondral replacement arthroplasty.

Deficiency of the proximal pole of the scaphoid due to fracture or necrosis was treated by costo-osteochondral replacement arthroplasty using rib bone/cartilage autografts in 22 patients who were followed prospectively and assessed at a median 24 month follow-up (range, 12-72 months). Improvement of wrist function occurred in all patients with increased motion, improved grip strength and less pain. The average modified Green and O'Brien Wrist Function Score improved from 53 out of 100 preoperatively to 80 at the most recent review. All patients were graded fair or poor at initial review and all but three improved to good or excellent at the most recent assessment. Despite the absence of the scapholunate ligament, carpal alignment did not deteriorate in any patient and there were no graft non-unions or significant complications. In the short and medium term a costo-osteochondral autograft can satisfactorily restore mechanical integrity of the scaphoid proximal pole and maintain wrist motion while avoiding the potential complications of alternative replacement arthroplasty techniques.

Adult↗

A further tendon retrieval trick.

Atraumatic delivery of the retracted flexor tendon ends following laceration is crucial for accurate tenorrhaphy. Sourmelis and McGrouther (1987) developed a useful method of delivering the proximal flexor tendon and a modification is presented here which further aids atraumatic tenorrhaphy.

Catheterization↗

Results of interfascicular nerve grafting for radial nerve lesions.

During the 10 year interval 1979-1989, 20 patients underwent nerve grafting of a radial nerve lesion, 13 high radial and 7 posterior interosseous. Average follow-up was 38 months (range 12 months-10 years). Overall 72% of patients achieved a Highet Scale rating of M3 or better function and 44% M4 or better recovery. Age of the patient and length of the nerve graft did not seem to influence outcome. Time from initial injury to nerve grafting did affect outcome, with 85% of patients grafted within 6 months obtaining M3 or better recovery. No patient grafted 12 months after injury recovered any useful function. Lesions of the posterior interosseous nerve had a consistently superior recovery. Power grip strength in the affected hand of patients averaged 60% of the unaffected hand while key pinch averaged 74%. There was good correlation between the Highet Scale rating of recovery and the ultimate power grip or key pinch strength obtained. Hand dexterity, as assessed by the turning and displacing tests of the Minnesota Rate of Manipulation Test, displayed a wide range of scores in both affected and unaffected hands. Nevertheless, a relative score derived from the results obtained in the displacing test did show correlation with the Highet Scale rating. All patients with M4 or better recovery obtained relative scores for the affected hand that were in the middle of the range of scores considered an average performance for a normal population. Patients who achieved M4 or better nerve recovery following radial nerve grafting also obtained a functional hand as evidenced by the results of grip, key pinch strength, and hand dexterity testing. Lesser degrees of recovery were accompanied by poorer strength and dexterity ratings reflecting inferior function.

Adult↗

Treatment of humeral shaft fractures with the Seidel intramedullary nail.

BACKGROUND: The use of intremedullary nails for the management of humeral shaft fractures has been controversial. Recently, the Seidel nail has become available. The purpose of this study was to review our initial experience with the Seidel nail. METHODS: A retrospective clinical and radiographic review of 25 consecutive patients treated with Seidel intramedullary humeral nail was performed. The nail was used for non-union in 10 patients, delayed union in four, acute fracture in eight and pathological fracture in three. Eighteen of the 19 survivors were clinically reviewed at an average of 15 months (range 8-15). Pain, function, satisfaction, shoulder power, range of motion and clinical outcome were graded using the UCLA shoulder score. RESULTS: Pain was present at the shoulder in four patients and at the fracture site in nine. Average shoulder abduction was 99 degrees and nine patients could not abduct the shoulder past 90 degrees. Sixty-six percent of patients reviewed were graded as only fair or poor using the UCLA shoulder score. In three patients rotational control was not achieved with the distal locking device at the time of surgery. Complications included non-union in 10 patients and three intra-operative fractures. CONCLUSIONS: Non-union was more likely to occur if rotational control was not obtained, or if the patient had the nail inserted for a previous non-union. Use of the Seidel nail frequently leads to shoulder pain and dysfunction. The distal locking device is unreliable and predisposes to non-union. We do not recommend the continued use of the Seidel nail.

Adolescent↗

Intercarpal arthrodesis by dowel bone grafting.

Successful intercarpal arthrodesis requires a stable fusion with maintenance of correct alignment and spatial relationship of the carpus. The technique described utilizes a series of tube saws to fashion the arthrodesis bed and then insert a sized iliac crest dowel bone graft with a tight interference fit. This technique has been used in 24 patients over a two-year period in both medial and lateral column intercarpal fusions. All wrists had fused by the tenth post-operative month. The technique is precise, reproducible and technically simple with a high fusion rate and minimal donor site morbidity.

Adolescent↗

A modified halo frame to assist omentum transfer to the scalp.

A modification of the halo frame to facilitate management of major scalp wounds is described. It has been used successfully in the management of a major scalp defect covered by a microvascular omental free flap. It has potential application in managing a replanted scalp.

Basal Cell Carcinoma↗

The natural history of anterior knee pain in adolescents.

Anterior knee pain in adolescents is generally recognised as a common but benign self-limiting condition. Although many operative procedures for its treatment have been proposed, there is little statistical evidence that they are more effective than expectant management. A group of 54 adolescent girls has been followed for two to eight years from presentation with anterior knee pain. Although some pain persisted in the majority, in many the symptoms declined in severity. This study provides a baseline for comparison with the results of operative intervention; it is suggested that surgical treatment is unproven and unnecessary.

Adolescent↗

A simple two-handed surgeon's knot.

The technique described allows the surgeon to perform a quick, secure, controlled double primary throw when tying the standard surgeon's knot, further enhancing the advantages of hand tying.

Humans↗

The Paneth cell.

Explore the source record for details and available documents.

Adult↗

Suprascapular nerve rotator cuff compression syndrome in volleyball players.

Selective denervation of the infraspinatus muscle producing weakness and wasting has been reported in certain sports (eg, volleyball and baseball). Nerve kinking or friction caused by excessive infraspinatus motion and compression by superior or inferior transverse scapular ligament or ganglions have been proposed as possible causes. However, in extreme abduction with full external rotation of the shoulder, the medial tendinous margin between the infraspinatus and supraspinatus muscles impinges strongly against the lateral edge of scapular spine, compressing the intervening infraspinatus branch of the suprascapular nerve. Spinaglenoid notchplasty has been performed in 5 elite volleyball players with infraspinatus neuropathy, allowing recovery of shoulder function in all patients and correction of infraspinatus muscle wasting. All returned to the same or higher level of volleyball by 8 months after surgery. An alternative cause of infraspinatus compromise in volleyball players is proposed and has been treated surgically with satisfactory outcome.

Adult↗