Arthroscopically guided osteotomy for management of intra-articular distal radius malunions.

PURPOSE: A malunion with a step-off of 1 mm or more after an intra-articular distal radius fracture may cause pain and arthritic changes at midterm follow-up. We present our technique for treating intra-articular distal radius malunions by carrying out an osteotomy from inside the joint outward under arthroscopic guidance using the dry arthroscopy technique, with emphasis on the clinical and radiologic outcomes. METHODS: We performed surgery on 11 patients for intra-articular malunion of the distal radius 1 to 5 months after the injury. Preoperative step-offs ranged from 2 to 5 mm (average, 2.5 mm) on plain radiographs. Original fracture patterns involved 1 radial styloid fracture, 1 radiocarpal fracture-dislocation, and 9 comminuted intra-articular fractures. In 5 cases an anterior-ulnar or radial styloid fragment was repositioned. In the rest, more than 1 fragment (up to 3) was osteotomized. In 1 patient the articular osteotomy was combined with an ulnar shortening osteotomy. RESULTS: Follow-up ranged from 12 to 48 months. Step-offs were reduced in most cases to 0 mm; however, localized gaps (<2 mm) and cartilage defects were commonly seen intraoperatively because the fragments did not accurately fit. According to the Gartland and Werley score, there were 4 excellent and 7 good results (mean score of 2.8). The Modified Green and O'Brien system achieved a mean score of 83, with 3 excellent, 5 good, and 3 fair results. One patient showed radiolunate narrowing on follow-up radiographs. CONCLUSIONS: Arthroscopically assisted osteotomy permits direct visualization of the osteotomy site with good midterm clinical and radiologic outcomes. The technique can be used in irregularly defined fragments. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Late salvage of the ischemic finger after crush injury using flow-through flaps: case report.

The progressive evolution and late salvage of a posttraumatic digit with poor vascularization has not been discussed in the literature. We report the cases of 3 patients whose fingers were rescued at referral 5 to 16 days after the traumatic event by restoring the arterial inflow by means of flow-through free flaps. All 3 fingers were compromised vascularly with patchy necrosis and absence of Doppler signal distal to the injury. All were salvaged. In our experience, in the setting of a posttraumatic digit with poor vascularization, it is possible to reverse impending necrosis by late revascularization. Frank infection or mummification is considered an irreversible state and a contraindication to salvage.

Ischemic toe encountered during harvesting: report of 6 cases.

Local vessel disease causing lack of arterial inflow at the time of toe harvesting represents a surgical emergency. In a personal experience of 194 toe transfers to the hand, 6 cases (in 4 patients) were found to have diseased vessels at the first web to the point that acute ischemia of the toe occurred when the tourniquet was released at the lower limb. We report our experience in these 6 cases.

Super-thinned iliac flap for major defects on the elbow and wrist flexion creases.

Four free iliac flaps were used to treat or prevent flexion contracture at the elbow or wrist flexion crease. Flap size ranged from 13 x 6 cm to 18 x 8 cm. Two flaps were used for primary coverage, and the other 2 flaps were used to treat established flexion contractures. All flaps survived without vascular complications. Full range of motion was obtained at the elbow and 40 degrees of active extension was obtained at the wrist. The flap has a very thin dermis with minimal panniculus that can be thinned as required, making it ideal to cover flexion creases. Despite the fact that anatomic variations are common in the inguinal region, the flap can be expeditiously and safely elevated. If needed, pedicle length can be up to 8 to 10 cm. The donor site is comparable with that of a full-thickness skin graft harvested from the groin. The donor artery, however, can be very small.

A technique to improve foot appearance after trimmed toe or hallux harvesting.

We describe a technique to improve the appearance of the donor site after hallux harvesting. The surgery has been used in 6 consecutive patients having a trimmed-toe-type transfer. Instead of the classic stump closure advised by Wei, the following steps were performed on the donor site: (1) removal en bloc of the second metatarsal and transposition of the second toe on top of the proximal phalanx of the hallux, (2) interposition of a tibial (medial) glabrous flap from the tibial aspect of the hallux onto the tibial side of the second toe to increase its size, and (3) eponichial flap to increase the nail show on the second toe. Fixation of the toe was achieved with K-wires and cerclage wire. Crossed K-wires stabilized the first to the third metatarsals for 4 to 6 weeks. Ambulation with a stiff sole was allowed a few days after surgery. The main advantage of this technique is the improved donor site appearance. As a bonus, the amount of skin that can be harvested with the trimmed toe is slightly increased. The main drawback is that the number of toes is reduced to 4.

The tibial second toe vascularized neurocutaneous free flap for major digital nerve defects.

PURPOSE: Most digital nerve defects can be reconstructed by means of nonvascularized nerve grafts or artificial tubes, for example. When the bed is poor, the defect is long, or there is a concomitant soft-tissue loss; however, a vascularized nerve graft may be a better option. Our purpose is to introduce a method of 1-stage reconstruction of complex neurocutaneous defects in the fingers and to report the results and clinical effectiveness at a minimum 1-year follow-up period. METHODS: From 1997 to 2005 there were 6 consecutive patients who had a combined soft-tissue and digital nerve defect reconstructed by a vascularized neurocutaneous flap from the tibial (medial) side of the second toe. Three were acute and 3 were chronic cases. One flap was used for the ulnar side of the thumb, 2 for the radial aspect of the index finger, 1 for the radial of the small finger, and 2 for the ulnar side of the small finger. The nerve gap averaged 4.2 cm, and the flap size averaged 3.2 x 2.1 cm. The flaps were revascularized with standard microsurgical techniques to local vessels in the fingers. The nerves were sutured with epineural stitches. A split-thickness skin graft was used to close the donor site of the toe. RESULTS: All flaps survived without complications. At the latest follow-up evaluation static two-point discrimination (s2PD) averaged 8 mm on the pulp. Three patients had normal sensation when tested with Semmes-Weinstein filaments. Subjective feeling was 78% of that of the normal side. Five patients rated their feeling as excellent on a subjective scale. The Disabilities of the Arm, Shoulder, and Hand questionnaire score averaged 5. CONCLUSIONS: The tibial neurocutaneous second toe free flap is suitable for reconstructing a missing nerve and soft-tissue defect in the finger. We found good functional recovery and high satisfaction in this group of patients. The donor site morbidity has been minimal, although delayed healing is common. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Vascularized bone blocks from the toe phalanx to solve complex intercalated defects in the fingers.

PURPOSE: Vascularized bone transplants resist infection and allow rapid healing but keeping small bony segments vascularized, as needed for a finger defect, is a challenge. The purpose of this article is to present a cohort of patients with traumatic intercalated compound bony defects in the fingers that were reconstructed by a vascularized toe phalanx (or part of a phalanx) in a single stage. METHODS: Eight patients were treated with an intercalary vascularized bone graft that included a part of the proximal phalanx (3 patients), most of the middle phalanx (4 patients), or a portion of each phalanx (1 patient) of a second toe (totaling 9 bone blocks). There was an associated soft-tissue defect in each patient, an infection in 6 patients, and cartilage loss in 4 patients. The toes were pedicled on the proper digital artery (6 patients) or a segment of the first dorsal metatarsal artery (2 patients). A mean length of 12 mm of vascularized bone was transferred. The associated skin island varied from a minimum of 2 x 1 cm to a maximum of 5 x 3 cm. Bleeding from all of the bone surfaces was evidenced once the clamps were released. The homolateral digital nerve and the contralateral neurovascular pedicle of the toe were kept in place. The toe defect was treated by soft-tissue arthroplasty or arthrodesis. No toe was amputated. RESULTS: Radiologic bony union was evident at 4 to 6 weeks, except in 1 patient with an acute infection whose distal union failed to unite at 6 weeks because the infection recurred. Finger length loss averaged 3 mm. All patients returned to their preoperative occupation. CONCLUSIONS: In this group of patients the toe phalanx reliably maintained its vascularization, allowing us to solve compound osteocutaneous defects in the fingers in a single stage. Donor site morbidity was minimal.