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Biomedical subjects

M A Wehbé

Publications and source records attributed to M A Wehbé.

At least 19 recordsLinked to original sources
PubMed1999

Early protected motion after extensor tendon repair.

Thirty hands with 50 extensor tendon lacerations, excluding mallet finger injuries, were examined. They were treated with surgical repair followed by immediate motion which included a dynamic splinting and tendon mobilization program. The average follow-up period was 7 months (range, 8 weeks to 2 years). Forty-five of the 50 tendons regained full range of motion (average total active motion, 262 degrees) within an average time of 9 weeks; the remaining 5 tendons had extension lags of < or = 10 degrees. All patients regained at least 93% of their predicted normal strength within 9 to 12 weeks and returned to their previous level of activity in an average of 10 weeks. These results, which include complex lacerations, are an improvement from previously published data. This is probably due to the addition of a tendon mobilization program to dynamic splinting following extensor tendon repair.

Adolescent↗
PubMed1996

Early motion after hand and wrist reconstruction.

There is substantial evidence to support the fact that early motion is beneficial for bones, joints, ligaments, tendons, and muscles. An Early Mobilization Program was designed to provide early motion for all these structures after hand and wrist reconstruction.

Hand Injuries↗
PubMed1996

Early motion protocols in hand and wrist rehabilitation.

Early motion programs establish gliding, decrease unwanted adhesions, and enhance the healing process and return to normal function of injuries. This article elaborates on how to best incorporate early motion programs into the rehabilitation process.

Adolescent↗
PubMed1996

Early motion after extensor tendon surgery.

Early motion programs for extensor tendon lacerations and repairs are relatively new and are proving to be extremely beneficial in the rehabilitation process. This article discusses when these programs are indicated and the details of how to provide a good early motion program.

Finger Injuries↗
PubMed1996

Early motion after wrist surgery.

This article reviews general considerations for therapists when initiating early motion after wrist surgery. Various early range of motion techniques and splinting are discussed in detail for the radiocarpal joint and distal radioulnar joint.

Humans↗
PubMed1995

Ulnar shortening using the AO small distractor.

Twenty-four patients (24 wrists) with ulnar impaction syndrome underwent ulnar shortening osteotomy. They were reviewed retrospectively to evaluate a technique using the AO small distractor and 2.7-mm dynamic compression plate. A transverse osteotomy using an external compression device and compression plating was performed in all cases. The average follow-up time was 32 months. Clinical and radiographic union occurred at an average of 9.7 weeks. There were no nonunions. This study demonstrates that ulnar transverse shortening osteotomy with external compression and plating is a simple and effective method of ulnar shortening, and that highly precise and complex instrumentation is not essential.

Adolescent↗
PubMed1995

Anatomy of the extensor mechanism of the hand and wrist.

This article describes extensor muscle and tendon anatomy from origin to insertion. As usual, the use of appropriate terminology is the building block for understanding the function and disorders of the extensor mechanism.

Fingers↗
PubMed1995

Extensor physiology in the hand and wrist.

The Physiology of finger extension is complex because of the various components of the extensor tendon mechanism. This article discusses the role each component plays in finger extension. Tendon excursion, strength, and electromyographic activity of the extensors are discussed.

Finger Joint↗
PubMed1994

Hand strength: normative values.

We studied normal hand strength and the difference between dominant and nondominant hands. Two hundred fourteen volunteers were tested with a calibrated Jamar dynamometer at all five levels. A pinch gauge was used to assess key and pulp pinch. Height, weight, sex, hand dominance, and hobby demands were predictive of maximum grip. Mean maximum grip for women was 81 lb. and for men was 137 lb. Key pinch averaged 22%, while pulp pinch averaged 16% of maximum grip. Only 129 (60%) patients had maximum strengths at level 2. The majority of right-handed subjects were 10% stronger in grip strength on the dominant side. In left-handed subjects, mean grip was the same for both hands; the nondominant hand was stronger in 50% of left-handed subjects.

Adolescent↗
PubMed1994

Tendon graft anatomy and harvesting.

Tendon grafts are often needed in reconstructive surgery. The choice of a tendon graft donor site should be based on the type of graft needed and knowledge of donor-site anatomy, whether normal or aberrant. This study, based on the dissection of 120 cadavers, describes anatomic variations and tendon harvesting techniques.

Arm↗
PubMed1992

Junctura anatomy.

Detailed dissection of 240 cadaver hands was undertaken, with particular attention to the connections between the extensor tendons. Three types of junctura were clearly identified: fascia, ligament, and tendon. Each hand had three juncturae. The most frequent presentation was for the three juncturae to be fascia-ligament-tendon, from radial to ulnar. A few aberrations of extensor tendon anatomy were also discovered, which might affect their use in tendon transfers.

Adult↗
PubMed1992

Tendon graft donor sites.

Each of 480 extremities from 120 cadavers was dissected. Particular attention was given to potential donors for tendon grafts. Both the palmaris longus and the extensor digiti minimi had an average length of 16 cm and an average width of 3 mm. The extensor indicis tendon averaged 13 cm in length and 3 mm in width. The plantaris and second toe extensors averaged 35 cm in length and 2 to 2.5 mm in width. None of these measurements correlated well with age, sex, or hand or foot size. There was, however, a high correlation between right- and left-side measurements in each specimen, in spite of some degree of anatomic variation for all the tendons studied. The palmaris longus was missing in 25% of the upper extremities, and the plantaris in 19% of the lower extremities dissected.

Adult↗
PubMed1991

Scapho-lunate distance and cortical ring sign.

The scapho-lunate distance was measured on posteroanterior radiographs of 100 normal wrists. The scapho-lunate distance measured a mean of 3.7 mm +/- SD 0.6 (range from 2.5 to 5.0 mm). The mean for 44 male wrists was 4.0 mm, and for 56 female wrists it was 3.6 mm. These results indicate that a scapho-lunate distance of up to 5 mm is not necessarily indicative of carpal instability. None of these normal wrists had a scaphoid "cortical ring" sign.

Anthropometry↗