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Biomedical subjects

Peter J Stern

Publications and source records attributed to Peter J Stern.

9 recordsLinked to original sources
PubMed2003

The relationship between basal joint arthritis and carpal tunnel syndrome: an MRI pilot study.

PURPOSE: This investigation explored 2 questions. First, does basal joint arthritis lead to morphologic alterations that significantly narrow the carpal tunnel? Second, does trapezial excision alter the morphology of the carpal tunnel and decompress the median nerve? METHOD: Four patients with basal joint arthritis alone were treated with ligament reconstruction and tendon interposition (LRTI) arthroplasty. Three patients with basal joint arthritis and carpal tunnel syndrome were treated with LRTI and carpal tunnel release. Preoperative and postoperative magnetic resonance imaging (MRI) scans were obtained to assess differences in carpal tunnel volume and morphology between the groups before and after surgery. RESULTS: The difference in preoperative carpal tunnel volume between groups was not significantly different. Carpal tunnel volume increased by 7% with LRTI and by 24% after LRTI and carpal tunnel release. The anteroposterior diameter of the carpal canal increased in both groups to allow a volar migration of the median nerve. CONCLUSION: LRTI increases the anteroposterior diameter and volume of the carpal tunnel. A larger comparative study would be necessary to determine whether LRTI is sufficient to decompress the carpal tunnel.

Aged↗
PubMed2003

Complications of trapeziometacarpal arthrodesis using plate and screw fixation.

PURPOSE: This study was designed to determine the complications associated with plate and screw fixation of thumb trapeziometacarpal arthrodesis and to compare these results with a previous report from our institution using K-wire fixation. METHOD: We retrospectively reviewed 26 trapeziometacarpal arthrodeses that used plate and screw fixation. The most common diagnosis was primary osteoarthritis and the average follow-up evaluation was 40 months. Nineteen patients were available for a clinical follow-up examination and radiographs. These results were compared with the previously published K-wire fixation group that consisted of 59 arthrodeses with an average follow-up period of 84 months. RESULTS: There were 2 (8%) painful nonunions. There were 6 (23%) hardware malpositions, most frequently associated with a screw in the trapeziotrapezoid joint. Seven (27%) arthrodeses had a second procedure, most commonly hardware removal. Twenty-one (81%) of the patients were satisfied and reported they would have arthrodesis again. In the K-wire fixation group 4 of 59 (7%) arthrodeses went on to nonunion and 2 of 59 required a secondary procedure; patient satisfaction was high (98%). CONCLUSIONS: K-wire and plate and screw fixation have comparable union rates. In the plate and screw fixation group, however, the satisfaction rate was lower and a second surgery was more common. We now recommend pin fixation when performing trapeziometacarpal joint arthrodesis.

Arthrodesis↗
PubMed2003

Incidence of wrong-site surgery among hand surgeons.

BACKGROUND: Until recently, wrong-site surgery had received little attention and had been considered a random, infrequent event. In 1997, the American Academy of Orthopaedic Surgeons (AAOS) Task Force on Wrong-Site Surgery was formed to determine the incidence of wrong-site surgery and to initiate the "Sign Your Site" campaign. The purpose of our study was to determine the incidence of wrong-site surgery among hand surgeons, elucidate surgeons' practice habits and measures taken to prevent its occurrence, and evaluate the effectiveness of the AAOS "Sign Your Site" campaign. METHODS: One thousand, five hundred and sixty active members of the American Society for Surgery of the Hand (ASSH) were polled by mail. Each member received a confidential twenty-nine-question survey. Nonrespondents were sent a second, identical survey. One thousand and fifty (67%) of the surgeons responded. RESULTS: One hundred and seventy-three surgeons (16%) reported that they had prepared to operate on the wrong site but then noticed the error prior to the incision, and 217 (21%) reported performing wrong-site surgery at least once. Of an estimated 6,700,000 surgical procedures, 242 were performed at the wrong site, an incidence of one in 27,686 procedures. The three most common locations of wrong-site surgery were the fingers (153), hands (twenty), and wrists (twenty-one). Permanent disability occurred in twenty-one patients (9%). Ninety-three cases (38%) led to legal action or monetary settlement. Seventy percent of the responding orthopaedic surgeons were aware of the "Sign Your Site" campaign, and 45% had changed their practice habits as a result. CONCLUSIONS: Prior to the AAOS "Sign Your Site" campaign, the issue of wrong-site surgery by hand surgeons had not been addressed. Although wrong-site surgery is rare, 21% of hand surgeons reported performing it at least once during their careers. Since the institution of the "Sign Your Site" campaign, 45% of orthopaedic hand surgeons have changed their practice habits, and almost all routinely take some action to prevent wrong-site surgery.

Hand↗
PubMed2002

Management of flexor tendon sheath ganglions: a cost analysis.

The purpose of this study was to determine success rates of 1 or more aspirations on flexor tendon sheath ganglions compared with surgical excision and to determine what treatment method is most cost-effective. Data were collected from documented history and physical examinations, operative reports, billing records, and telephone interviews. Of the 259 patients coded as having flexor tendon sheath ganglions, 175 met the inclusion criteria. In addition, 2001 Medicare-assigned relative value units and fees were used to calculate the most cost-effective treatment. Of the 141 patients treated with aspiration, 66% exhibited no recurrence after 2 consecutive treatments. Thirteen of 14 patients (93%) who had ganglions excised without prior aspiration showed no recurrence. All 29 patients who had excision after 1 (n = 24) or 2 (n = 5) failed aspirations were cured. Because few patients require excision after 2 aspirations, the most cost-effective treatment for recurrent flexor tendon sheath ganglions is 2 aspirations before excision.

Adult↗
PubMed2002

Volar neutralization plate fixation of dorsally displaced distal radius fractures.

Open reduction and volar neutralization plate fixation avoids problems associated with dorsal plate fixation (eg, extensor tenosynovitis and tendon rupture) and minimizes the necessity for secondary plate removal. Volar plating is a useful technique for treating dorsally displaced distal radius fractures with minimal scarring, infrequent bone grafting, and safe early wrist mobilization.

Adult↗